Answer:
There are basically three types of cell shapes: coccus (spherical), bacillus (rod or cylindrical shaped), and spiral (twisted). Cell size is limited by a cell's surface area to volume ratio. The Shape of a cell determines the function of the cell.
Cells having spherical shapes are best and most advantageous because they have the smallest size that increases the surface-to-volume ratio. The cells with spherical shape experience greater frictional resistance.
Cells having a cylinder or rod-shaped helped the cell to concentrate molecules at specific cellular locales. Cylindrical cells are able to concentrate proteins at different locations in the cell.
A culture of living cells includes a solution called a _____.
A) concentration
B) slide
C) flask
D)medium
Answer:
D)Medium
Explanation:
A culture of living cells is grown over a solution that is called as a growth medium. A growth or culture medium can be in the form of solid, semi-solid or liquid. It is typically designed to facilitate the growth of the living cells of plants, animals, humans and microbes.
Honeybees eat nectar found in flowers. In the process of gathering nectar, bees carry pollen from flower to flower. This allows the flowering plants to reproduce. Based on this information, what is the best classification for the relationship between honeybees and flowering plants?
commensalism
parasitism
mutualism
competition
No links
is the world safe place for animals and plants?
Guys pls answer it
Answer:
No it isn't
Explanation:
Nothing is ever safe everything is constantly trying to kill you and the same goes for animals. Wether it be humans or other animals and even their own bodies.
Answer:
Wildlife sanctuary is the place where wild animals are protected in their natural habitat. Here poaching or capturing the animals is prohibited. Biosphere reserves are the area used to conserve biodiversity like plants, animals and microorganisms. It contains many wildlife sanctuaries and national parks.
Explanation:
Florida orange growers often have hundreds of trees in their orchard, similar to those shown here. Florida temperatures can be
mostly tropical or temperate. However, even areas of southern Florida can be exposed to freezing temperatures in the winter.
Suppose that an extreme frost affected an area where the orange orchard is growing. Predict the impacts of this event on the
orange trees. Select ALL that apply.
A)
The trees will undergo mutations that enable them to survive harsher and
colder winters in the future.
B)
This could result in a population bottleneck, where few trees survive,
resulting in lowered genetic diversity
C)
The trees will undergo artificial selection which results in only trees that
are better adapted to freezing temperatures
D)
Trees with the ability to survive the freezing temperatures will reproduce
and create offspring with similar genetic makeup.
E)
The trees in the orchard may all be of similar genetic origin, resulting in a
common tolerance or susceptibility to the freezing weather.
Answer:B,D,E
Explanation: ur welcome
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The possible impacts include common tolerance or susceptibility, population bottleneck and similar genetic makeup (Options B, D and E).
Common tolerance is due to the selection of trees that are tolerant to these environmental conditions.Population bottleneck is a consequence of the decrease in genetic variability as a consequence of selection.Similar genetic makeup is due to the reduction in genetic variation of the original population.In conclusion, the possible impacts include common tolerance or susceptibility, population bottleneck and similar genetic makeup (Options B, D and E).
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what is scientific method?
A. a method that is bias
B. a method based on moral beliefs C. a system which constitutes a single step
D. assistant for conducting a scientific investigation
Answer:
C
Explanation:
What are five ways to help keep groundwater clean?
Five ways to keep Ground Water Clean!
Purification
Less Littering
Less pollution
Less gas around water areas
Cleaning up around your local area
Which of the following events occurs during cytokinesis?
the cell begins to divide into two cells
the cell stops performing meiosis
the chromosomes start to divide
the chromosomes start to line up in the middle of the cell
Answer:
Cytokinesis is the process in which the cell divides into two.
how did cb van niel's studies with purple sulfur bacteria lead to his hypothesis that the oxygen released in photosynthesis comes from the water and not the carbon dioxide?
These studies were based on the observation that the oxygen released during photosynthesis by purple sulfur bacteria was isotopically identical to the oxygen found in water, rather than the oxygen found in carbon dioxide.
Van Niel's studies were based on the fact that photosynthesis is a process that converts light energy into chemical energy, which is used to produce organic compounds. During photosynthesis, purple sulfur bacteria take in carbon dioxide and water, and using light energy, they split the water molecules into oxygen and hydrogen. The hydrogen is then used to reduce the carbon dioxide to form organic compounds, such as glucose.
Based on his observations, Van Niel proposed that the oxygen released during photosynthesis comes from the water and not from the carbon dioxide. This hypothesis was later confirmed by other scientists, who showed that the oxygen produced during photosynthesis is actually derived from the water molecules, not from the carbon dioxide. This process is known as water-splitting and it is the first step in photosynthesis in which the water molecule is split into hydrogen and oxygen by the enzyme photosynthetic oxygen evolution complex.
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Punnett squares can be used to predict the probability of: a) being exposed to a contagious disease and contracting it b) having an inherited disease or a genetically determined physical trait c) both of the above
Answer:
b) having an inherited disease or a genetically determined physical trait
Explanation:
The Punnett square is a simple diagram that can help determine which traits are the most probable in offspring depending on the genes of the parents. It only helps when looking at the probability of genetics or trying to understand how the characteristics of an offspring are linked to the characteristics of its parents.
Because of this, a Punnett square could not be used to predict the probability of being exposed to a disease or contracting it, but it could be used to determine the probability of having an inherited disease or a genetically determined physical trait.
Let me know if you'd like more help understanding Punnett squares, and I can guide you to some helpful resources. :)
A mitosis inhibitor is a medication that is designed to prevent mitosis in certain cells. Why would these be helpful in treatment of tumors?
"Mitosis inhibitors are used to stop cells from dividing and replicating. Tumors are made up of cells that have uncontrolled growth and division, so mitosis inhibitors can be helpful in the treatment of tumors because they can stop the cells in the tumor from dividing and growing. By preventing the tumor cells from replicating, the growth of the tumor can be slowed down or even stopped, which can be an important step in the treatment of cancer. Some examples of mitosis inhibitors include taxanes, vinca alkaloids, and paclitaxel, which are used in chemotherapy to treat a variety of cancers. However, it's worth noting that mitosis inhibitors can also affect healthy cells that divide rapidly, such as hair follicles and cells lining the gastrointestinal tract, which can cause side effects like hair loss and digestive problems." (ChatGPT, 2023)
How do animal clones hurt the environment
Answer:Commercial cloning would further erode livestock diversity, because the protections provided by genetic diversity would be lost in genetically identical herds. Most cattle breeds in the US now require cloning status to be listed in the pedigree of an animal as a way of preserving genetic diversity.
Explanation:hope this helps<<<3
Patel and her siblings try to stick to a low salt diet since they have inherited high blood pressure from their mother. This is a great solution to overcome which health determinant?
Biology and genetics
Family and cultural influences
Health services
Social and physical factors
The low salt diet is a great solution to overcome heath determinant of Biology and genetics.
According to this question, Patel and her siblings have inherited high blood pressure from their parents. This tells us that the health condition is a genetic disorder, which is branch of Biology. Patel and her siblings are however, on a low salt diet as a solution to overcome the health challenge (high blood pressure).This solution is, hence, a great solution to overcome the heath determinant of Biology and genetics.
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Answer:
Biology and Genetics
Explanation:
which division of the nervous system includes the nerves that extend from the brain, the spinal cord, and sensory receptors?
The division of the nervous system that includes the nerves that extend from the brain, the spinal cord, and sensory receptors is the peripheral nervous system (PNS).
The PNS is one of the two main divisions of the nervous system, alongside the central nervous system (CNS). The PNS is composed of all the nerves and ganglia that lie outside of the brain and spinal cord, including sensory, motor, and autonomic nerves.
Sensory nerves transmit sensory information from the receptors in the body to the brain and spinal cord, while motor nerves transmit motor information from the brain and spinal cord to the muscles and glands. The autonomic nervous system (ANS) is a subdivision of the PNS that regulates involuntary body functions, such as heart rate, blood pressure, digestion, and breathing.
Overall, the PNS plays a crucial role in receiving and transmitting information between the body and the CNS, allowing for coordinated movement and sensory processing.
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What is one solution we can stop air pollution
This question is for Ecology
Answers: You can :
Drive your car less.
Keep your car in good repair.
Turn off your engine.
Don't burn your garbage.
Limit backyards fire in the city.
Plant and care for trees.
& Use less energy.
Explanation:
Help me with this question please
Based on the percentages provided, the soil would be called "loamy sand".
What is the type of soil described?The type of soil is called loamy sand soil.
Loamy sand soil contains a relatively high percentage of sand (50%) which allows for good drainage and aeration, while the smaller percentages of silt (10%) and clay (40%) provide some water and nutrient retention.
This type of soil is often ideal for plant growth as it provides a balance of drainage and nutrient availability.
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a weather model applies mathematical equations to
each place on earth weather data have been collected.
the temperature in a location every 30 minutes.
each grid on a three-dimensional grid.
the average weather conditions in an area.
Answer:
c
Explanation: took test
To cross-fertilize flowers A and B, one would first remove flower A's immature ________ and later transfer pollen from flower B to flower A's ________. anthers; stamen carpe; ovule stamens; stigma stigma; style
To cross-fertilize flowers A and B, one would first remove flower A's immature stamens and later transfer pollen from flower B to flower A's stigma.
What is the stigma?In a flower, the stigma represents the structural region of the flower that functions to collect the pollen grains.
The stigma is a female reproductive structure in the flowers, which plays a fundamental role during fertilization.
The stamens are considered the male reproductive structure of the flowers where pollen grains develop.
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Use the Information in the food chain to fill in the blanks below.
common shrew
chain when the
slender wheatgrass
great horned owl
long-tailed weasel
Matter moves to the secondary consumer in this food chain when the ____ eats the ___. Matter reaches the top of the food
chain when the ____ eats the long-tailed weasel.
Matter moves to the secondary consumer in this food chain when the great horned owl eats the long-tailed weasel
Matter reaches the top of the food chain when the common shrew eats the long-tailed weasel.
What do second-order consumers often eat?Carnivores, which come from the Latin term for "meat eaters," are primarily secondary consumers. Egrets and alligators are carnivorous animals that live in the Everglades. Only other animals are eaten by them. However, not all carnivores are predators. Predators are those that seek and kill other animals.
The roots of the plants are how the nutrients are absorbed. When people eat plants, nutrients are transferred to main consumers. By eating lower level consumers, higher level consumers receive the nutrients. The cycle is repeated when a living thing dies.
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Circle the correct answer. Suppose there is a population of elephant seals with one sexually dominant bull (male seal). All other male seals seldom if ever get the opportunity to mate. The population of seals is stable and neither grows nor shrinks. (Part A) The bull's Darwinian fitness is probably a.) >1 b.) =1 C.) <1 (Part B) The other male seals' Darwinian fitnesses probably average: a.) >1 b.) =1 c.) <1 (Part C) The average Darwinian fitness of the individuals in the entire population is probably a. )>1 b.) =1 C. )<1
Part A: The bull's Darwinian fitness is probably (a.) >1
Part B: The other male seals' Darwinian fitnesses are probably average: (c.) <1
Part C: The average Darwinian fitness of the individuals in the entire population is probably (b.) =1
Part A: Darwinian fitness is defined as the contribution of an individual to the gene pool of the following generation relative to the average for the population, as a result of the selection pressures. An organism with a high fitness level is more likely to survive and reproduce than an organism with a lower fitness level. In the elephant seal population, the sexually dominant bull has the highest Darwinian fitness since it has a greater likelihood of passing on its genes.
Part B: Since other male seals do not get the opportunity to mate, their fitness levels are relatively low, which suggests that their Darwinian fitness level is below average.
Part C: The average Darwinian fitness level of the population is 1 in a stable population that neither grows nor shrinks. This suggests that the rate of the organism's population with a higher fitness level is similar to that of the population with a lower fitness level.
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the folowing statements are true about fermentation: a. all of the above are true b. net two molecules of atp are produced c. takes place in prokaryotes and eukaryotes. d. does not require o2.
All of the above statements are true about fermentation. In fermentation, net two molecules of ATP are produced. This process takes place in both prokaryotes and eukaryotes. However, fermentation does not require oxygen.It is an anaerobic process.
Fermentation is a metabolic process that produces ATP through the breakdown of glucose. This process does not require oxygen and takes place in the absence of oxygen. In fermentation, glucose is converted into pyruvate, and then pyruvate is converted into ATP. The net production of two ATP molecules per glucose molecule is lower than that of aerobic respiration, but fermentation does not require oxygen, making it an important process in anaerobic conditions.
Fermentation is used by many organisms, including bacteria, yeast, and some plants. In bacteria, fermentation is used to produce lactic acid, which is then converted into ATP. In yeast, fermentation is used to produce ethanol and carbon dioxide. In plants, fermentation is used to produce lactic acid, ethanol, and carbon dioxide.
Fermentation is an important process in the food industry. It is used to produce bread, wine, beer, and cheese. It is also used to produce yogurt, sauerkraut, and other fermented foods.
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Parenteral includes any routes other than the _____.
Parenteral includes any routes other than the gastrointestinal (GI) route. The choice of route depends on the medication being administered, and the desired outcome.
The GI route involves the administration of medications or nutrients through the mouth, and the drug or nutrient is then absorbed by the digestive system. Parenteral routes, on the other hand, involve administration of medications or nutrients through routes other than the GI tract, such as intravenous (IV), intramuscular (IM), subcutaneous (SC), intradermal (ID), intra-arterial, and intrathecal. Parenteral routes are often used when oral administration is not possible or effective, or when rapid drug delivery is necessary. Intravenous administration provides the most rapid onset of action, while other routes, such as intramuscular and subcutaneous, provide a slower onset of action.
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the three main components of connective tissue are: a. collagen, elastin, and reticular fibers. b. alveoli, fibrous capsule, and secretory cells. c. ground substance, fibers, and cells. d. fibroblasts, chondroblasts, and osteoblasts.
The correct answer to this question is (c) ground substance, fibers, and cells. The three main components of connective tissue are the substances above.
Along with epithelial tissue, muscle tissue, and nerve tissue, connective tissue, often known as fibrous tissue, is one of the four main forms of animal tissue. It develops from the mesenchyme, which comes from the intermediate embryonic germ layer known as mesoderm. All over the body, including the neurological system, connective tissue covers the gaps between diverse tissues. Connective tissue makes up the three meninges, which are membranes that protect the brain and spinal cord.
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PEDIGREE CHART
Inheritance Over Three Generations
7. Terminology: Scientists often
refer to the generations of
inheritance as P, F1, and F2.
Using the definitions below,
identify the generations in
Figure 2.
P-parental generation
F1 - 1st generation of offspring
F2 - offspring of the F1 cross
Answer:
15
Explanation:
because u need to divide it
The father and son both have dark hair and eyes, and both are tall. What scientific concept do the similarities illustrate? A. cell functions OB. molecular structure OC. heredity OD. energy transfer
Answer:
A.
Explanation:
EASY POINTS WILL GIVE BRIANLIST TO BEST ANSWER
Vernon is studying the population of deer in a tract of forest. He gathers the following data.
Birth rate:~50 deer/year
Death rate:~70 deer/year
Which additional observation would support the conclusion that the deer population is NOT changing size from year to year, meaning that the net population change is 0?
A. About 20 deer per year immigrate to the tract of forest.
B. About 20 deer per year emigrate from the tract of forest.
C. The average life span of a member of the deer population is 20 years.
D. If a deer survives its first year of life, its average life span is 20 years.
Answer: A.About 20 deer per year immigrate to the tract of forest.
Explanation:if 50 deers are born every year and 70 deers die every year but the population doesn't change it means deers immigrate to the tract of forest.
do you think your observation and calculations in steps 7-9 are representative of the cell division taking place in the entire root?
what is the purpose for administering of epinephrine 0.001 mg/ml which route is used?
Epinephrine (adrenaline) is a hormone and neurotransmitter that increases the rate and force of cardiac output, dilates bronchial tubes, and increases blood sugar levels in the body.
Epinephrine is a life-saving medication that can be used to treat severe allergic reactions known as anaphylaxis. Epinephrine 0.001 mg/ml can be administered by the intramuscular or subcutaneous route.What is the purpose for administering of epinephrine 0.001 mg/ml?The purpose for administering of epinephrine 0.001 mg/ml is to manage severe allergic reactions such as anaphylaxis, cardiac arrest, asthma attacks, and other medical emergencies.
Epinephrine can be used to treat hypotension (low blood pressure), hives, bronchoconstriction, and other symptoms of allergic reactions caused by food, medications, insect bites, and other allergens.In addition to its life-saving properties, epinephrine also acts as a potent bronchodilator, which means it can help alleviate the symptoms of bronchospasm caused by asthma or other respiratory illnesses.
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How could we safely capture & grow bacteria in the classroom? What precautions do we need to take so we don’t get an infection from our experiment?
Bacteria can be grow best in warm, moist and protein rich environment. The following precautions we need to take while growing of bacteria:-
use glovesuse lab coatuse safety goggleslong hair should tieafter experiment use sanitizerBacteria are small single-celled organisms. Bacteria are found nearly anywhere on earth and are vital to the planet's ecosystems. some species can stay beneath intense situations of temperature and strain. The human frame is complete of bacteria, and in reality is expected to contain more bacterial cells than human cells.
The ancestors of bacteria were unicellular microorganisms that were the primary forms of lifestyles to seem in the world, about four billion years in the past. For about three billion years, maximum organisms have been microscopic, and bacteria and archaea were the dominant forms of life.
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You are a molecule of phosphorus. Choose a starting point in the phosphorus cycle and describe the process you would go through to move through the entire cycle
Phosphorus is introduced into the ecosystem in the form of inorganic fertilizers or by detergents.
What is the biogeochemical cycles?The biogeochemical cycles has been refers to the cycles in nature that involves the movement of materials such as nutrients. Phosphorus has been introduced into the ecosystem in the form of inorganic fertilizers or by the detergents. These are taken up by plants and some may go off into the lakes by run off water.
When materials that has been contain phosphorus is burnt in air, some of the phosphorus may become oxidized as ash and these are taken up by plants and some may go off into the lakes by run off water.
Therefore, Phosphorus is introduced into the ecosystem in the form of inorganic fertilizers or by detergents.
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4. if the dna sequences of two different species are 90% identical, what does it suggest about these species?
If the DNA sequences of two different species are 90% identical, it suggests that they share a common ancestry or a recent evolutionary history.
DNA is the genetic code that holds the instructions for the development, function, and reproduction of all living things. DNA sequences are the codes that hold the instructions to make the protein, which helps in various cellular functions and organism structure.The genetic code is universal, and it is common among all living organisms. It is made up of four nucleotide bases- adenine (A), thymine (T), guanine (G), and cytosine (C).In comparing DNA sequences between two different species, we can determine how closely related they are to each other. If two species have a high level of DNA sequence similarity, they are more closely related than if they have a low level of similarity.DNA sequences that are 90% identical means they have 90% of the same base pair sequence.
So, it suggests that they share a common ancestry or a recent evolutionary history. This is an indication that the two species evolved from a similar origin and have maintained much of their genetic information over time.
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