Which component of a virus is lacking in a cell?
DNA
ribosomes
protein capsid
RNA

Answer:

One early idea about heredity that was shown to be false by Frederick Griffith's research  was the concept of "blending inheritance." This idea suggested that the traits of offspring were a mixture of the traits of their parents.

Griffith's experiments with Streptococcus pneumoniae in the 1920s showed that this was not the case. He discovered that some strains of the bacteria were virulent, while others were non-virulent. When he injected mice with the non-virulent strain, they remained healthy. However, when he injected mice with the virulent strain, they became sick and died.

Griffith then made a surprising discovery: when he injected mice with a mixture of the non-virulent and virulent strains, the mice became sick and died, and the virulent strain could be recovered from their bodies. This suggested that something from the virulent strain had been transferred to the non-virulent strain, making it virulent as well.

This transformation was later shown to be due to the transfer of genetic material from the virulent strain to the non-virulent strain. This discovery challenged the concept of blending inheritance, showing that genetic information could be transferred intact between organisms. This paved the way for the discovery of DNA as the molecule responsible for transmitting genetic information.

Explanation:

Answer: Fixation

Explanation:

a. Based on the data given, it appears that unstriped snails may be better adapted to this environment as they have a higher survival rate than striped snails.

b. This conclusion can be reached by comparing the percentage of striped and unstriped snails in the live population versus the broken shell population. While striped snails make up 47.1% of the live population, they only make up 43.7% of the broken shells. In contrast, unstriped snails make up 52.9% of the live population, but only 56.3% of the broken shells. This suggests that striped snails are more likely to be preyed upon by birds than unstriped snails.

c. Based on these results, it is possible that the frequency of striped snails in this population may decrease over time, while the frequency of unstriped snails may increase. This is because the birds are preying more heavily on striped snails, which will result in fewer striped snails reproducing and passing on their genes for striped coloring to the next generation.

Meanwhile, the unstriped snails have a higher survival rate and are more likely to reproduce, which could result in an increase in the frequency of unstriped snails over time. However, it is important to note that there may be other factors affecting the frequency of striped and unstriped snails in this population, and more data would be needed to make a more accurate prediction.

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Answer:

C, a huge slow-moving mass of ice on land,

Explanation:

a glacier is crystalline ice, snow, rock, sediment, and often liquid water that originates on land and moves down slope under the influence of its own weight and gravity.

Answer:

Explanation:

Answer:

D.The similar time period in which the organism lived

The occurrence of factors such as incomplete dominance as well as co-dominance can not be explained by Mendelian genetics.

Gregor Mendel, the Australian monk dutifully postulated the patterns of inheritance which we refer to today as the Mendel's laws of genetics. However, sometimes, we find patterns that do not conform to the laws of Mendel.

These Mendelian pattern of inheritance could be contradicted by the occurrence of;

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Answer:

There is a lot of diversity between the organisms.

hope it helps!

The evidence from the graphs is that more carbon in the atmosphere is likely to absorb more heat energy, thus raising the temperature.

The feature is important because the effect of sunlight on the Earth's surface, including the oceans, is reflected in the form of infrared rays. By absorbing this radiation, the gases heat up the entire atmosphere as if they were a blanket that keeps the planet warm.

Whit this information, we can conclude that the evidence from the graphs is that more carbon in the atmosphere is likely to absorb more heat energy, thus raising the temperature.

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Answer:

See below !! :)

Explanation:

Answer:

1.selective breeding

2.natural selection

3.behavioral adaptations

4.physical adaptations

Explanation:

Hypertension​ refers to the blood pressure that occurs when the force of the blood against the artery walls is excessively high.

In conclusion, hypertension​ refers to the blood pressure that occurs when the force of the blood against the artery walls is excessively high.

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Red pandas primarily eat leaves and bamboo,

Where are Red Pandas native too?

In countries like China, Nepal, and Bhutan, red pandas can be found in the Eastern Himalayas. They stay in trees the majority of the time. They can readily move from branch to branch thanks to their partially retractable claws.

Hence, red pandas primarily eat leaves and bamboo, although they also occasionally eat fruit, insects, bird eggs, and small lizards.

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When the ground position of a front moves so that warm air occupies territory that was previously held by cold air, It is knows a warm front.

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Answer:

it is number B. more

Explanation:

I think it is helpful

Answer: silent mutation

Explanation:

The removal of GCLC gene from the T cells of the mice will result in: (d.) The mouse will not make glutathione.

HCLC gene encodes the information for the synthesis of the enzyme glutamate cysteine ligase. This enzyme is crucial as it catalyzes the rate-limiting step of the process of synthesis of glutathione. Hence, if the gene in knocked out from the mice, no glutathione will be formed.

Glutathione is an antioxidant made from the amino acids  glycine, cysteine, and glutamic acids. It helps in protecting the body of living organisms from harmful substances like reactive oxygen species, free radicals, peroxides, etc.

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Answer:

The answer is 3

Explanation:

Hope this helps

Answer:3 or c

Explanation:

To classify a new, single-celled organism as prokaryotic or eukaryotic, a biologist would need to examine the characteristics of the organism. The most effective procedure to classify the organism would be to observe the cell structure of the organism under a microscope.

If the organism lacks a true nucleus and other membrane-bound organelles, it is likely a prokaryote. Prokaryotic cells are generally smaller and simpler in structure than eukaryotic cells. They lack a true nucleus and other membrane-bound organelles, and their genetic material is typically found in a single circular chromosome.

If the organism possesses a true nucleus and other membrane-bound organelles, it is likely a eukaryote. Eukaryotic cells are generally larger and more complex in structure than prokaryotic cells. They have a true nucleus and other membrane-bound organelles such as mitochondria, chloroplasts (in photosynthetic organisms), and endoplasmic reticulum.

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Answer:

I think herbivores and primary consumers

Answer:

consumer

The grasshopper would be considered to be a consumer since he eats the plants below him.

hope this helps

Answer:

consumer

Explanation:

cus it eats the grass and the grass is a producer

Explanation:

a. Photosystem II Light shining on pigments energizes electrons that come from water.

b. Electron transport chain: High energy electrons move down the chain, which pumps H+ ions to inside of the thylakoid

c. Photosystem I: electrons are reenergized with more light.

d. Electron Transport: the reenergized electrons are transferred to NADP+ to make NADPH

Answer:

amino acids are organic compunds.....

Answer:

Amino acids are organic compounds that contain amine and carboxyl functional groups, along with a side chain specific to each amino acid.

Answer:

The type of coffee

Explanation:

Different types of coffee contain different amounts of caffeine. This makes it important to use only one type of coffee

Constant is the one thing that does not change. If you are experimenting to see if they test better with coffee, you'll need to give each student the same amount of coffee throughout each trial.

Answer:

Quite a few, here are some to think about:

1. Informed consent: Researchers should obtain informed consent from study participants, which means they must explain the nature of the study, potential risks and benefits, and allow participants to freely decide whether or not to participate.

2. Privacy and confidentiality: Researchers must protect the privacy and confidentiality of study participants by keeping their personal information and data confidential.

3. Respect for autonomy: Researchers must respect the autonomy of participants and allow them to make their own decisions about their participation in the study.

4. Animal welfare: When studying life processes using animals, researchers must consider the ethical treatment of animals and ensure that they are treated with respect and care.

5. Data integrity: Researchers must ensure the accuracy and integrity of data collected during the study and avoid falsification or manipulation of data.

6. Beneficence: Researchers must balance the potential benefits of the study against potential risks to participants and take steps to minimize harm to participants.

7. Social responsibility: Researchers must consider the potential impact of their research on society and ensure that their work is conducted in an ethical and socially responsible manner.

The sodium-potassium antiporter works by active transport and the effect that would occur in transport if the cell ran out of ATP would be that: less potassium would be transported into the cell by the antiporter.

Active transport is the type of transport where the molecules are transported using the energy. This energy is required because the movement of molecules occurs uphill. i.e. from its region of lower concentration to the region of higher concentration.

Antiporter belongs to the cotransport system of the secondary active transport. In this the two molecules travel in opposite directions. This is achieved by the downhill transport of one molecule that releases energy in the form of ATP and this energy is then used for the uphill transport of another molecule.

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False. The statement that a natural resource is an asset that comes from the earth and is consumed is incorrect.

A natural resource is an asset that comes from the earth, but it is not necessarily consumed. Natural resources are materials or substances that occur naturally in the environment and have economic value or provide benefits to humans. Examples of natural resources include water, air, minerals, fossil fuels, timber, and wildlife. While some natural resources are consumed or used up through human activities such as extraction, harvesting, or combustion (e.g., fossil fuels), not all natural resources are necessarily consumed. Some resources can be renewable or replenishable, such as solar energy, wind energy, or sustainable forestry practices that allow for the continued availability of timber.

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When ammonia is excreted by healthy kidneys, acid-base balance of the body mechanism usually is maintained.

The bacteria in your intestines predominantly produce ammonia, also known as NH3, when they digest protein. Normally, ammonia is converted into urea, another waste product, in your liver throughout the processing process.

After reaching your kidneys, the urea is then removed through urine. Ammonium ions, which are ejected from the body, are created when excreted ammonia interacts with hydrogen ions in the glomerular filtrate. Mechanism keeps the acid-base balance by removing excess hydrogen from the body.

Therefore, when ammonia is excreted by healthy kidneys, acid-base balance of the body mechanism usually is maintained.

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