Which statement does NOT accurately describe eukaryotic and prokaryotic cells?

Answer:

c. medicines are made from forest species

Explanation:

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Answer:

Each combination of an element with a different number of neutrons is called an isotope. The radioactive isotope is called the parent, and the isotope formed by the decay is called the daughter

Answer:

The correct answer is: C. Active Transport.

Explanation:

Because Na+ and K+ are ions, which makes them charged molecules, they can only diffuse through the cell membrane when using specialized protein channels. This is called facilitated diffusion and is a form of passive transport because sodium and potassium move following their gradients, which are made of the difference in concentration between the inside of the cell and the outside of the cell. For example, potassium is highly concentrated inside the cell and poorly concentrated outside the cell, so potassium diffuses from the inside to the outside to even the concentrations.

But the question asks in which process Na+ and K+ move in and out of the cell SIMULTANEOUSLY, so the answer is actually active transport. Active transport is the opposite of passive transport. While passive transport occurs naturally and doesn't need ATP (energy) to happen, active transport needs ATP because it moves molecules AGAINST their gradient. One of the most famous and important structures involved in active transport is the Na+/K+ pump, which consists of a specialized protein using energy to enter 2 potassium ions and take out 3 sodium ions at the same time. This Na+/K+ is fundamental to maintain the gradients, which are important for the correct functioning of many cells.

The frequency of heterozygotes in the population is approximately 0.399 or 39.9%.

In a population in Hardy-Weinberg equilibrium, the frequencies of alleles and genotypes remain constant from generation to generation. The Hardy-Weinberg equation is:

\(p^2 + 2pq + q^2 = 1\)

where p is the frequency of the dominant allele (R), q is the frequency of the recessive allele (r), \(p^2\) is the frequency of homozygous dominant individuals (RR), \(q^2\)is the frequency of homozygous recessive individuals (rr), and 2pq is the frequency of heterozygous individuals (Rr).

We are given that the population has 2800 flowers, and 2352 of them are red (RR or Rr). This means that the frequency of the red allele (p) is:

p = (number of red alleles) / (total number of alleles) = (2 x number of RR individuals + number of Rr individuals) / (2 x total number of individuals)

p = (2 x 2352 + x) / (2 x 2800) = (4704 + x) / 5600

where x is the number of Rr individuals.

We can also find the frequency of the white allele (q) as:

q = 1 - p

q = 1 - (4704 + x) / 5600 = (896 - x) / 5600

Now we can use the Hardy-Weinberg equation to solve for the frequency of heterozygous individuals:

2pq = 2[(4704 + x) / 5600][(896 - x) / 5600]

2pq = (2 x 4704 x 896 - \(2x^2\)) /\(5600^2\)

2pq = (8423936 - \(2x^2\)) / 31360000

We know that the population is in Hardy-Weinberg equilibrium, so the frequency of heterozygotes should be the same as the expected frequency of heterozygotes based on the allele frequencies:

2pq = 0.4

Therefore, we can solve for x:

(8423936 - \(2x^2\)) / 31360000 = 0.4

8423936 -\(2x^2\)= 12544000

\(2x^2\) = 4110064

\(x^2\) = 2055032

x = 1433.8 (rounded to the nearest whole number)

Therefore, there are approximately 1434 Rr individuals in the population, and the frequency of heterozygotes is:

2pq = 2[(4704 + 1434) / 5600][(896 - 1434) / 5600] = 0.399

So the frequency of heterozygotes in the population is approximately 0.399 or 39.9%.

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Answer:

Both occur in mitochondria

Explanation:

Respiration occurs in the power house called mitochondria

Answer:

Body images of women

Explanation:

Body images of women

Answer:

A

Explanation:

Hopefully this helps.

Answer:

the passed on from to offspring

Answer: because they will divide

Answer:

Nick

Explanation:

Answer:

D

Explanation:

1. protists have nuclei

2. plants don't move independently

3. animals don't make their own food

so option D is the best option

good luck

The following claims correctly describes a kingdom of Domain Eukarya is  Kingdom fungi includes organisms that get energy by decomposing materials in their environment.

Fungi are heterotrophic and eukaryotic organisms that can be unicellular or multicellular. The vast majority of species are filamentous, and these filaments are called hyphae. Some fungi are formed by several densely packed hyphae, which form the so-called mycelium.

The Fungi Kingdom is represented by unicellular or multicellular eukaryotic organisms, being found in the most diverse types of environments. Fungi include mushrooms, molds, wood ears, lichens, among other organisms.

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Answer:

Ture

For work, in Science to be done a force must be exerted and there must be motion or displacement in the direction of the force

If the DNA strand is: C A T    T A C   G A T   C G C,

the mRNA must be: G U A   A U G   C U A   G C G;

and the tRNA must be: C A U   U A C   G A U   C G C.

A cell's initial step in reading out a required component of its genetic instructions is to convert a specific portion of its DNA nucleotide sequence—a gene—into an RNA nucleotide sequence. Although the information in RNA is replicated into a different chemical form, it is nevertheless written in the same language as DNA—the language of nucleotide sequences.

RNA, like DNA, is a linear polymer made up of four distinct nucleotide subunits connected by phosphodiester linkages. Chemically, it varies from DNA in two ways: 1) RNA's nucleotides are ribonucleotides, meaning they contain the sugar ribose rather than deoxyribose; 2) while RNA contains the bases adenine (A), guanine (G), and cytosine (C) like DNA, but it contains the base uracil (U) instead of thymine (T).

mRNA (also called messenger RNA) is the strand of RNA that is got from the Transcription process by using a gene from the DNA. tRNA (transfer RNA) is made from the mRNA and is completely complementary to it, tRNA anticodons (groups of three nucleotides) will match the mRNA codons and they will each code for a specific amino acid, thus forming a peptide and later, a protein.

In a complementary sequence, Cytosine (C) is always paired with Guanine (G), while Adenine (A) is paired with Thymine (T) in DNA strand or paired with Uracil (U) in RNA strand.

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Answer: False

Explanation:

The right side pumps deoxygenated, CO2 rich blood, while the left side pumps oxygen rich blood.

Answer:

The correct answer is - homunculus.

Explanation:

Homunculus of the cortex is the distorted representation of the neurological map of the areas of the human brain in proportions. These are cartoon depiction that are made by the neurological maps of the various parts of the brain.

The vasculature is a network of blood arteries that connects the heart to all of the body's organs and tissues. Arteries and arterioles transport oxygen-rich blood and nutrients from the heart to the organs and tissues, while veins and venules return deoxygenated blood to the heart.

Blood vessels are circulatory system components that convey blood throughout the human body. These veins carry blood cells, nutrients, and oxygen to the body's tissues. They also remove trash and carbon dioxide from tissues. All of the body's tissues rely on the functioning of blood arteries to support life.

There are five types of blood vessels: arteries, which take blood out from the heart; arterioles; capillaries, which exchange water and chemicals between the blood and the tissues; venules; and veins, which bring blood back towards the heart from the capillaries.

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Full Question: There are two types of blood vessels that connect to capillaries: venules and arterioles. Based on their names, what can you guess their role is in carrying blood? Do they carry oxygenated or deoxygenated blood?

Explanation:

The bacteria’s helps in breaking down the organic materials which has nitrogen in it, and helps in giving the nitrogen back to the cycle. Bacteria helps in breaking down of the leaves and then it diffuses the nitrogen to the soil. Prokaryotes also plays an important role in the nitrogen cycle. The nitrogen fixing bacteria present in the root zone of plants basically in the soil, helps in conversion of the nitrogen into ammonia. Then the nitrifying bacteria converts the ammonia to the nitrites or can say nitrates.  

Answer:

sorry I didn't know hahaha

Answer:

The correct answer is-  The receptionist told the manager that he had booked his flight tickets for Monday

Explanation:

Indirect speech is the expression any statement of a consverstaion that occured in past without quoting explicitly. Indirect speech is the stating any quoted statement in simple statement. In this type of speech some grammer and certain noun and pronoun change accordingly.

So the correct indirect speech of the receptionist said to the manager,'I have booked your flight tickects for Monday'. would be The receptionist told the manager that he had booked his flight tickets for Monday

Answer:

active transport; osmosis

Answer:

This spread of particles through random motion from an area of high concentration to an area of lower concentration is known as diffusion. In living systems, diffusion is responsible for the movement of a large number of substances, such as gases and small uncharged molecules, into and out of cells.

Explanation:

Source: Trust Me Bro ;)

Explanation:

biodiversity is biology lesson

biodiversity is one part of around biodiversity means skin

Answer:

They listen to sound and feel vibrations through those two temporal holes to grasp their surroundings and survive.

Explanation:

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The given statement is false. This is because the number of species only remains constant but the composition will change.

The equilibrium theory of Island biogeography describes the relationship between extinction and the immigration of the species on an island. This mainly depends on the size and distance from the mainland. So when the immigration rate and the extinction rate are equal or the same, this island is said to be in equilibrium.

At this equilibrium state, the number of species present on this island is the same, or constant. This number of species will never change. But the composition of this species may change. Therefore, the given statement is false.

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The cell containing the inclusions indicated by the arrows is often associated with Alder anomaly.

The correct option can be determined by

1. Albinism: This condition is characterized by a lack of pigmentation in the skin, hair, and eyes. It is not associated with inclusions in cells.
2. Severe burns: These cause damage to the skin and underlying tissues but are not associated with specific cellular inclusions.
3. Alder anomaly: This is a rare lysosomal storage disorder characterized by the accumulation of granules in cells, often seen as inclusions indicated by arrows in microscopic images.

Thus, the single best answer is Alder anomaly.

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Answer:

The cell membrane is the semipermeable membrane of a cell that surrounds and encloses its contents of cytoplasm and nucleoplasm. The cell membrane separates the cell from the surrounding interstitial fluid, the main component of the extracellular fluid.

Explanation:

The following are modifications that have been documented during RNA editing include nucleotide substitution, insertion, and deletion.

Nucleotide substitution involves the alteration of one nucleotide to another, such as adenosine-to-inosine (A-to-I) editing, which is prevalent in higher eukaryotes. Cytidine-to-uridine (C-to-U) editing is another common substitution that occurs in various organisms. Insertion and deletion events result in the addition or removal of nucleotides, leading to changes in the RNA sequence. For example, during the editing of kinetoplastid mitochondrial mRNAs, uridine insertions or deletions modulate the reading frame to produce functional proteins.

Another well-known modification is the addition of the 3' poly(A) tail, which increases RNA stability and promotes translation. Lastly, splicing, the process of intron removal and exon ligation, also contributes to RNA editing. Alternative splicing allows the creation of multiple mRNA isoforms from a single gene, adding complexity to the proteome. In summary, RNA editing involves nucleotide substitution, insertion, and deletion, as well as splicing, to generate diverse RNA and protein products essential for proper cellular function.

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The spinal cord is the part of the central nervous system that carries information from your senses to your brain and motor-control information to your body parts.

The spinal cord is part of the central nervous system, which is responsible for sending messages between the brain and the body. The spinal cord is a long, thin bundle of nerves that runs from the base of the brain down the back and is made up of grey matter and white matter. Grey matter is the part of the nervous system that contains the cell bodies of the neurons and white matter is the part of the nervous system that contains the axons of the neurons.

The spinal cord is protected by a thick layer of fatty tissue called the myelin sheath. This myelin sheath helps to insulate the neurons and also speeds up the electrical signals travelling between the brain and the body. The spinal cord carries information from the senses such as sight, smell, sound, taste and touch and motor-control information to the body. The motor-control information includes instructions from the brain to the body parts such as arms and legs to move. The spinal cord also carries information to and from the organs in the body, such as the heart, lungs and pancreas.

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Relationship between pulmonary ventilation, pH of the extracellular fluids, and the bicarbonate buffer system:

The act of breathing, also known as ventilation, involves moving air into and out of the lungs in order to promote gas exchange with the body's internal environment, primarily to expel carbon dioxide and draw in oxygen.

All aerobic organisms require oxygen for cellular respiration, which uses carbon dioxide as a waste product and obtains energy from the interaction of oxygen with molecules received from food. Air is introduced into the lungs during breathing, also known as "external respiration," when gas exchange occurs in the alveoli by diffusion. These gases are moved to and from the cells through the circulatory system of the body, where "cellular respiration" occurs.

All animals with lungs breathe in and out again in cycles through a highly branched network of tubes or airways that connect the nose to the alveoli. The breathing rate, often known as the respiratory rate, is one of the four main vital indicators of life and is measured in respiration cycles per minute. Under normal circumstances, many homeostatic processes that maintain a steady partial pressure of carbon dioxide and oxygen in the arterial circulation govern the breathing depth and rate automatically and spontaneously.

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Answer:

See explanation

Explanation:

There are a number of differences between mass and weight, they include;

Mass is  a scalar quantity whereas weight is a vector quantity.

Mass is dependent on the quantity of matter present in a body whereas weight depends on the acceleration due to gravity in a particular location on the earths surface.

The SI unit of mass is kilogram whereas the SI unit of weight is Newton.