9. Which type of molecule (small or large) has an easier time diffusing in/out of the cell
membrane?
Answers
Answer:
small
Explanation:
I learned this in the 7that grade
Related Questions
true or false? although less than 1 percent of body calcium is in blood and soft tissue, that small amount is vitally important in muscle contraction, nerve impulse transmission, blood clotting, and cell metabolism.
Answers
The given statement although less than 1 percent of body calcium is in blood and soft tissue, that small amount is vitally important in muscle contraction, nerve impulse transmission, blood clotting, and cell metabolism is TRUE.
Although only a small percentage of body calcium is found in the blood and soft tissue, it is still essential for vital physiological functions, such as muscle contraction, nerve impulse transmission, blood clotting, and cell metabolism. Calcium ions play a significant role in the release of neurotransmitters at the neuromuscular junction, which initiates muscle contraction.
Calcium is also crucial for the activation of several enzymes involved in cellular metabolism and blood clotting. Calcium homeostasis is tightly regulated by several hormones, including parathyroid hormone (PTH), calcitriol, and calcitonin, which work together to maintain appropriate levels of calcium in the blood.
If blood calcium levels are too low, PTH and calcitriol increase calcium absorption from the intestines and calcium reabsorption from the kidneys. If blood calcium levels are too high, calcitonin reduces calcium reabsorption from the kidneys and increases calcium deposition in bones.
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which is the fairest way to take a representative sample from a population?
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The fairest way to take a representative sample from a population is through random sampling. Random sampling ensures that every individual in the population has an equal chance of being selected for the sample, minimizing bias and increasing the likelihood of obtaining a representative sample.
Random sampling can be achieved through various methods, such as simple random sampling or stratified random sampling. In simple random sampling, individuals are selected entirely by chance, often using a random number generator or a random selection process. Stratified random sampling involves dividing the population into distinct subgroups or strata and then randomly selecting individuals from each stratum in proportion to their representation in the population.
By employing random sampling techniques, researchers can enhance the fairness and generalizability of their findings. This approach helps to ensure that the characteristics and diversity of the population are appropriately captured in the sample, enabling valid inferences and minimizing the potential for sampling bias.
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proteins provide energy for cellular processes. lipids catalyze chemical reactions inside the cell. b. proteins catalyze chemical reactions inside the cell. lipids allow for the transport of certain molecules into and out of the cell. c. proteins allow for the transport of certain molecules into and out of the cell. lipids store genetic information for cells. d. proteins store genetic information for cells. lipids provide energy for cellular processes.
Answers
In a cell, lipids carry out a variety of tasks. In the presence of lipids termed fats, cells store resources for long-term use.
The meaning of genetics?Genetics is the study of genes & heredity, or the process through which specific characteristics or traits being passed from one generation to the next as a result of variations in DNA sequence. A gene is a section of DNA that carries instructions for constructing one or more compounds that are necessary for bodily function.
What characteristics are inherited from our parents?Through their DNA, parents transmit to their offspring traits or qualities like eye color and blood type. Additionally, some illnesses and ailments can be genetically handed down. Sometimes a trait might take on many different forms. A blood type could be A, B, AB, or O, for instance.
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Cells remove waste from their cytoplasm by passing it through the cell membrane and out of the cell. What two human body systems perform similar functions?.
Answers
Answer:delete it
Explanation:just do it
Blood vessels are connected to nerve fibers which are regulated by the
nervous system. When innervated they respond by doing what?
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Answer:
When blood vessels are innervated they respond by contracting and relaxing their muscle wall, as a result of the activity of the autonomic nervous system.
Explanation:
The nerves that are responsible for the innervation of the blood vessels are called nervi vasorum, and are composed of nerve fibers of the sympathetic and parasympathetic nervous systems.
The innervation of the blood vessels specifically acts on the muscular wall of the vessel, so it contracts or relaxes depending on the activity of the nervous system:
Sympathetic nervous system stimulates vascular contraction.Parasympathetic nervous system makes the vascular smooth muscle relax.The action of the autonomic nervous system has an effect on blood pressure, being a determinant of normal or pathological behavior of the arteries.
WHAT IF? A locus that affects susceptibility to a degenerative brain disease has two alleles, V and v. In a population, 16 people have genotype V V, 92 have genotype V v , and 12 have genotype v v . Is this population evolving? Explain.
Answers
The Hardy-Weinberg theory states that as long as a population has the same allelic and genotypic frequencies through generations, it is in equilibrium, and is not evolving. This population IS EVOLVING.
What is Hardy-Weinberg equilibrium?
The Hardy-Weinberg equilibrium theory that states that when a population is in equilibrium, it is not evolving.
The allelic frequencies in a locus are represented as p and q.
Assuming a diallelic gene,
Alleic frequencies,
The frequency of the dominant allele p(X) is pThe frequency of the recessive allele p(x) is qThe genotypic frequencies after one generation are
p² (Homozygous dominant genotypic frequency), 2pq (Heterozygous genotypic frequency), q² (Homozygous recessive genotypic frequency).Allelic and genotypic frequencies remain the same through generations in a population that is in H-W equilibrium. As long as they remain the same, the population is not evolving.
The addition of the allelic frequencies equals 1
p + q = 1.
The sum of genotypic frequencies equals 1
p² + 2pq + q² = 1
In the exposed example, we need to see if the population is evolving or not.
To do it, we will take the genotypic and allelic frequencies of the current generation, and then we will take the expected genotypic frequencies for the next generation to compare them and see if they are the same or different.
Diallelic gene
Dominant allele VRecessive allele vPopulation size = 120 individuals
VV individuals = 16Vv individuals = 92vv individuals = 12Genotypic frequencies (current generation - observed data)
F(VV) = p² = 16/120 = 0.1333
F(Vv) = 2pq = 92/120 = 0.7667
F(vv) = q² = 12/120 = 0.1
Allelic frequencies
f(V) = p = p² + 1/2 2pq = 0.1333 + 0.7667/2 = 0.5166
f(v) = q = q² + 1/2 2pq = 0.1 + 0.7667/2 = 0.4833
According to these allelic frequencies, the expected genotypic frequencies for the following generation would be as follow,
F(VV) = p² = 0.5166² = 0.2668 ≅ 0.267
F(Vv) = 2pq = 2 x 0.5166 x 0.4833 = 0.499
F(vv) = q² = 0.4833² = .02335 ≅ 0.234
And the expected numbers of individuals from the following generation expressing each gentoype would be,
VV = 0.267 x 120 = 32
Vv = 0.499 x 120 = 60
vv = 0.234 x 120 = 28
As we can see, genotypic frequencies change from one generation to the other. We can assume that this population is not in H-W equilibrium and, hence, it is evolving.
p₁² ≠ p₂²
0.1333 < 0.267
2pq₁ ≠ 2pq₂
0.7667 > 0.499
q₁² ≠ q₂²
0.1 < 0.234
The homozygous genotypes are increasing their frequency.
This population is EVOLVING and probably disruptive selection is going on.
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Use the diagram to identify the stream profile that correctly illustrates
settlement deposition
A. Profile 1
B. Profile 3
C. Profile 2
D. Profile 4
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A 56-year-old male came to the clinic one day because he said that his "hat doesn't fit anymore". He reported to the physician that he felt that his hats were getting smaller. On physical examination, the patient did not appear to be gaining weight, but he complained that his feet hurt at the end of the day. His feet appeared to be normal, as were his major physiological systems. His nasolabial folds, the lines that go from his nose to the corners of his mouth, seem deeper and the characteristics of his face overall seemed coarser. What is the likely problem the patient is suffering from?
Answers
Acromegaly is a hormonal disorder that occurs when the pituitary gland produces excess growth hormone (GH) after the closure of the epiphyseal plates. It is most commonly caused by a benign tumor of the pituitary gland called a pituitary adenoma.
The symptoms of acromegaly develop slowly over time and are often subtle at first. The enlargement of the hands and feet, as well as the complaint of the patient's hat not fitting anymore, are typical signs of acromegaly. The growth hormone causes increased bone and soft tissue growth, resulting in enlarged extremities. The patient's complaint of foot pain at the end of the day may be due to the increased size and pressure on the feet.
The deepening of the nasolabial folds and coarsening of facial features are also characteristic of acromegaly. The excess growth hormone affects the connective tissues and facial bones, leading to changes in facial appearance.
In addition to these physical changes, acromegaly can also cause other systemic effects, such as hypertension, diabetes mellitus, sleep apnea, and enlargement of internal organs.
To confirm the diagnosis of acromegaly, further tests such as measurement of insulin-like growth factor 1 (IGF-1) levels and an oral glucose tolerance test may be conducted. Imaging studies, such as magnetic resonance imaging (MRI) of the pituitary gland, can help identify the presence of a pituitary adenoma.
Treatment for acromegaly typically involves surgical removal of the pituitary adenoma, radiation therapy, and/or medication to suppress the excess growth hormone production. It's important for the patient to consult with an endocrinologist for proper diagnosis and management of acromegaly.
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A/An ___ is a blood clot attached to the interior wall of a vein or artery.a. thrombusb. embolismc. embolusd. thrombosis
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A thrombus is a blood clot attached to the interior wall of a vein or artery. Here option A is the correct answer.
A thrombus, also known as a blood clot, can form in a vein or artery and can potentially obstruct blood flow. This can lead to serious health complications, such as deep vein thrombosis (DVT) in the legs or a pulmonary embolism (PE) in the lungs.
Risk factors for thrombus formation include inactivity, certain medical conditions, and certain medications. Thrombi are usually treated with anticoagulant medication. The prevention of thrombosis is done by reducing risk factors and use of anticoagulant medication when appropriate.
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Is duralumin a mineral, a rock, or neither?
Answers
Answer:
Duralumin is an aluminium alloy.
Explanation:
Duralumin is a kind of mineral.
What is Duralumin?There isn't a single chemical composition for duralumin because it is an alloy of copper, magnesium, manganese, as well as aluminum that can change based on its intended application. 4.4 percent copper, 1.5 percent magnesium, 0.6 percent manganese, and 93.5 percent aluminum make up a typical alloy.
What is mineral?A mineral would be an inorganic solid that forms in nature and have an organized atomic structure and a known chemical composition. Even while it may seem like a mouthful, if you break it down, it becomes clearer. Minerals have been created naturally. They are not human-made. They have inorganic, minerals.
Another of the earliest varieties of age-hardenable aluminum alloys goes by the brand name Duralumin. The word is a mix of aluminum and Dürener.
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Primary cells in the immune response that recognize and react with antigens in the bodya. Trueb. False
Answers
Primary cells in the immune response that recognize and react with antigens in the body. This statement is true.
What are antigens?
Antigens are substances that are foreign to the body and elicit an immune response. They can include substances like bacteria, viruses, fungi, toxins, and even cancer cells. When antigens enter the body, they are recognized by the immune system as foreign, and a specific immune response is generated to eliminate or neutralize the threat.
Primary cells in the immune response, also known as immune cells or effector cells, play a key role in recognizing and reacting with antigens in the body. Antigens are substances that are foreign to the body, and can include bacteria, viruses, and other pathogens.
When an antigen is encountered, the primary cells of the immune response, such as T cells and B cells, will recognize it and respond by producing a specific immune response. T cells, for example, can directly kill infected cells, while B cells produce antibodies that help neutralize pathogens and prevent further infection.
This recognition and response to antigens is a critical component of the immune system, as it helps to protect the body against harmful pathogens and prevent infections.
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Gene 1 and Gene 2 have many differences in their nucleotide sequences.
Based on this information, which two statements are true about the proteins encoded by Gene 1 and Gene 2?
Choose two answers:
A The proteins must be located in different types of specialized cells.
B The proteins likely have different amino acid sequences.
C The proteins likely have different functions in the cell.
Answers
Based on this information, 'the proteins likely have different amino acid sequences' and 'the proteins likely have different functions in the cell' are TRUE. A gene codes a protein.
GeneA gene is a fragment of DNA that is used as a template to generate a complementary mRNA during transcription.
Subsequently, this mRNA is then used as a template to generate a protein during a process called translation.
The linear order in the nucleotide (DNA) sequence determines the specific amino acids that will be added to the nascent polypeptide chain (each triplet of nucleotides or codon in mRNA determines one amino acid).
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Into what kingdom would each of the following be classified: Unicellular prokaryotes that live in dust. ______________________ Unicellular eukaryotes that line in pond water. _____________________ Multicellular eukaryotes that live all over the planet and consume food. ______________________ Unicellular prokaryotes that live in volcanic ash. _________________________ Multicellular eukaryotes that have cell walls and are heterotrophic. _______________________ Multicellular eukaryotes that have cell walls and are autotrophic. ________________________
Answers
Answer:
Unicellular prokaryotes that live in dust: Eubacteria
Unicellular eukaryotes that line in pond water: Protista
Multicellular eukaryotes that live all over the planet and consume food: Anamalia
Unicellular prokaryotes that live in volcanic ash: Archaebacteria
Multicellular eukaryotes that have cell walls and are heterotrophic: Fungi
Multicellular eukaryotes that have cell walls and are autotrophic: Plantae
Explanation:
Prokaryotic organisms can be classified into two groups: Eubacteria and Archaebacteria. Eubacteria (i.e.,“true” bacteria) are unicellular prokaryotic microorganisms that live in normal environmental conditions. On the other hand, Archaea (Archaebacteria) are prokaryotic older organisms that thrive in extreme conditions (in this case, volcanic ash). Moreover, eukaryotic organisms can be classified into four kingdoms: Protista, Plantae, Fungi and Animalia. Protista are unicellular eukaryotes that live in different aquatic environments (i.e., oceans, ponds, streams, etc). Animals are multicellular, mobile, heterotrophic (i.e., organisms that cannot produce its own food) organisms whose cells lack walls. Fungi are heterotrophic organisms that acquire their food by absorbing dissolved organic compounds, whose cells have cell walls (but they lack chloroplasts). Finally, plants are multicellular autotrophic (i.e., organisms that produce their own food) organisms whose cells contain walls and chloroplasts (to produce food by photosynthesis).
Neurotransmitters that do not bind with the postsynaptic neuron are sometimes taken back up into the presynaptic neuron in a process called
Answers
Answer:
Reuptake
Explanation:
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Explain how the peahen's nesting behavior is an
example of a reproductive strategy.
Answers
Answer:
Staying and caring for the young after birth.
Explanation:
The peahen creates a nest for the eggs. She stays, incubates, and protects the eggs for about a month. After the eggs hatch, the chicks don't always stay in the nest, the mother may even move them away from the nest. This is because predators are attracted to the egg shells. The mother peahen cares for the young for at least 2 months. The mother's protection before birth & care after, as well as leaving the nest gives the peachicks a better chance of survival against predators.
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What societal change would likely cause a decrease in the birth rate?
A. Reducing the availability of family planning programs and contraception
B. Increasing the education and employment opportunities for women
C. Encouraging women to marry at a young age
D. Providing tax breaks to families for each child they have
Answers
Answer:
The societal change that would likely cause a decrease in birth rate is;
B. Increasing the education and employment opportunities for women
Explanation:
Changing the nature and proportion of participation of women in education and occupation by increasing the education and employment opportunities for women such that the way women participate in the labor force changes with more women obtaining a higher education by spending more time in schools and at their places of employment will lead to the following demographics
1) A higher number of university educated women
2) Increased urbanization, as more women gain employment in urban areas
3) Reduced fertility, as more time is spent by women in school and employment thereby reducing the available period for child bearing and birth rate
The person above is correct because the more education women has, the lesser chance at them having a baby(babies) out of the blue. They have more focus on education and this also risks marriage at a young age. Therefore the answer is indeed B.
Which of the following describes one way earthworms benefit plants?
Earthworms are a food source for plants in warm climates.
Earthworms make the soil loose and fine so plants can grow.
Earthworms prevent plants from absorbing too much water.
Earthworms feed on parasites that are found on plant roots.
Answers
The option that describes one way earthworms benefit plants is: "Earthworms make the soil loose and fine so plants can grow."
What are the Earthworms?
Earthworms are known as ecosystem engineers, and one of their essential roles is to improve soil structure and nutrient availability. As earthworms move through the soil, they create tunnels and burrows, which aerate the soil and allow water to infiltrate more easily. This helps to improve soil structure and texture, making it easier for plant roots to grow and access nutrients.
Additionally, as earthworms consume organic matter, they break it down and release nutrients, such as nitrogen and phosphorus, which can be taken up by plants.
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Complete question is: "Earthworms make the soil loose and fine so plants can grow." is describes one way earthworms benefit plants.
compare and contrast respiration In insect and fish?
Answers
Answer:
insect is small and lives on land and the fish lives in water
Explanation:
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1. How do you measure amplitude?
A. How wide a wave is
B. How high a wave is
C. How loud a wave is
D. How regular a wave is
Answers
Answer:c
Explanation:how loud the wave is
What was the background information that Schleiden and Schwann
needed to perform their experiments about cells?
Answers
Theodore Schwann and Mattias Schleiden needed the background information about cell is that how cells originate and functions in the body of animals as well as plants.
What is the contribution of Schwann and Schleiden?Schwann and Schleiden proposed the cell theory, which states that all living organisms are composed of one or more cells. The cell is the basic unit of structure and function in organisms.
Each cell arises from a pre-existing cell.
The basic information that Schwann and Schleiden needed before performing the experiments about cells is how cell-derived in this nature become the most important part of life in living entities.
They also wanted to know the actual function and metabolic activities of the cell.
Therefore, it is well described above.
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Which molecule's function is to bind to proteins to serve as part of the enzyme unit of a ribosome?
Answers
The rRNA molecules in the ribosome control the catalytic stages of protein synthesis, which involve joining amino acids to form proteins. To represent this role, rRNA is frequently referred to as a ribozyme or catalytic RNA.
The ear canal is surrounded by hair follicles and glands that secrete cerumen, a waxy oil. On occasion, the glands produce more wax than the ear can effectively clear. Hearing might be obstructed by the excess wax if it hardens in the ear canal. The ear canal is surrounded by hair follicles and glands that secrete cerumen, a waxy oil. On occasion, the glands produce more wax than the ear can effectively clear. Hearing might be obstructed by the excess wax if it hardens in the ear canal. The ribosome contains three binding sites for transfer RNA (tRNA) molecules and one for mRNA. Ribosomal RNA (rRNA) molecules and various numbers of ribosomal proteins, respectively, make up the large and small ribosomal subunits.
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the combining form cervic/o pertains to which area of the body?
Answers
The combining form cervic/o pertains to the area of the body known as the neck.
The combining form cervic/o is derived from the Latin word "cervix," which means neck. It is commonly used in medical terminology to refer to various structures or conditions related to the neck.
The neck is the part of the body that connects the head to the rest of the torso. It consists of several important anatomical structures, including the cervical vertebrae, which form the spinal column in the neck region. The cervical vertebrae provide support and flexibility to the neck and allow for movements such as turning the head.
In addition to the vertebrae, the neck also contains other vital structures like the thyroid gland, trachea (windpipe), esophagus, blood vessels, lymph nodes, and various muscles. Medical terms incorporating the combining form cervic/o are used to describe conditions, procedures, or examinations involving these structures.
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What part of the brain is associated with the processing of both positively and negatively balanced emotions?
Answers
The insula is the part of the brain that is associated with the processing of both positively and negatively balanced emotions.
The insula is a small region located within the cerebral cortex that is involved in a wide range of functions related to perception, emotion, and cognition. Studies have shown that the insula is involved in the processing of both positive and negative emotions, as well as the integration of emotional and sensory information. The insula is also involved in the regulation of bodily states and visceral responses, such as heart rate and respiration, which are associated with emotional experiences.
In addition to its role in emotional processing, the insula is also involved in a range of other functions, including pain perception, social cognition, and decision making. Dysfunction of the insula has been implicated in a range of neurological and psychiatric disorders, including anxiety disorders, depression, and schizophrenia.
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A man and a woman have 24 children(!!) Of the children, 17 have brown eyes and 7 of the children have blue eyes. What are the genotypes of the parents?
Answers
Answer:
calculate it
Explanation:
I have a problem I'm math I calculate it my answer is perfect don't mad at me I'm just helping
In sunflowers, being too short means not getting enough sunlight, and growing too tall means getting blown around by the wind. Which type of Natural Selection does this show? You must also explain why you choose it.
Answers
Answer:
Explanation:Also, sunflowers planted in a garden can die because of one reason or another. If you notice that your sunflower is dying, here are some of the ways that
Sunflowers: How to Plant, Grow, and Care for sunflowers
Apr 15, 2022 · Sunflowers should be planted 1 to 1-1/2 inches deep and about 6 inches apart after the soil has thoroughly warmed. If you wish, you can plant multiple seeds and thin them to the strongest contenders when the plants are six inches tall. Give plants plenty of room, especially for low-growing varieties that will branch out.
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How to Grow Sunflowers (& Common Mistakes To Avoid ...
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Oct 04, 2021 · Sizes range from dwarf types (1 to 2-feet tall) to mammoths (8 to 15 feet).The world record for sunflower height is currently 30 feet! Flower sizes can be a few inches and up to 20-inches in diameter.; Flower colors: white, pale yellow, yellow, bright yellow, orange, bronze, rust, dark red, and bi-colored varieties. Appearance and texture: long petals, short petals, fluffy, …
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How Does Sunlight Affect the Grown of a Sunflower Plant?. Sunflowers (Helianthus) not only thrive in full sun, but have long been a symbol of the …
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Apr 15, 2022 · Sunflowers should be planted 1 to 1-1/2 inches deep and about 6 inches apart after the soil has thoroughly warmed. If you wish, you can plant multiple seeds and thin them to the strongest contenders when the plants are six inches tall. Give plants plenty of room, especially for low-growing varieties that will branch out.
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compare and discuss how cells store energy and release energy using ATP. Be specific! You may draw the cycle
pls help i hate bio and i’m currently failing
Answers
Answer:
Due to process of respiration, ATP is formed and release energy by breaking of ATP.
Explanation:
Cells store energy in the form of adenosine triphosphate (ATP) and also release energy in the form of ATP because ATP has a chemical energy which can be gained by breaking down ATP molecule and use this chemical energy in different cellular processes. Cells produces energy in the form of ATP molecule in the mitochondria of the cell by broken down of glucose in the presence of oxygen in the process of respiration. By breaking of ATP, ADP is formed and the energy present in the bond is used by the cell in different activities.
somebody help. . can someone please tell me the types of layering in root establishment in plants?.
Answers
Answer:
Layering can be used to multiply many of your favorite plants now growing around your yard and in your home. There are six common types of layering: air, simple, tip, trench, serpentine and mound. Air and simple layering are the most popular types
Explanation:
PLZ MARK AS BRAINLIEST
Answer:
The answer above me is correct
The_______ harness light energy and convert it into chemical energy. The ______ convert fuel particles into usable energy for the cell.
Answers
First one is chlorophyll, second one is mitochondria.
What are 6 scientific facts about Cucumaria miniata?
Answers
Answer:
Cucumaria miniata is generally orange or reddish brown. They are easily identifiable by their orange coloration and branching tentacles. The body is thick and has five rows of tube feet, separated by smooth, soft skin. Pentameric radial symmetry is present in the five equally spaced rows of feet. The ossicles, which are present in all echinoderms, are small and scarcely scattered throughout the dermis.
Explanation:
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What is an organelle?
Answers
Answer:
any of a number of organized or specialized structures within a living cell.
Explanation:
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