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DochEvi [55]
3 years ago
12

In sponges, internal fertilization occurs when?

Biology
2 answers:
lapo4ka [179]3 years ago
7 0
I think the correct answer among the choices listed above is option B. In sponges, internal fertilization occurs when the sperm is taken in from the surrounding water. Hope this answers the question. Have a nice day.
Sphinxa [80]3 years ago
5 0

Hi there


The correct answer is : B


I hope that's help:)

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Pancreatic cells, which secrete a large amount of digestive enzymes, are labeled with radioactive leucine and then chased for se
LiRa [457]

Answer:

Option-C

Explanation:

A pulse-chase experiment which is used to study the cellular process taking place in the cells. This uses the labelled molecule which is incorporated into the cellular pathway and then the unlabeled molecules are used over time to determine how much time is required by the unlabeled molecule to replace the labelled molecule.

In the given question, the pancreatic cell which secretes the digestive enzyme known as the acinar cell is labelled with the leucine and then used unlabeled leucine.

When observed after three hours, the black spots will appear on the exterior of the cell as the protein has been synthesised by the ER and now has been secreted from the cell.

Thus, Option-C is the correct answer.

5 0
3 years ago
Suppose that after 22 months, guppies from the transplanted population were returned to the source pool. What would most likely
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<span>When organisms are born in the wild, they tend to start developing an understanding of their surroundings based on their experiences. If an organism is transplanted to a different environment right after birth, it will develop the instincts to survive in that environment. A sudden change in its environment will result in the organism being out to place, possibly unable to cope with the selection pressures of its new environment. This will likely be the case with these guppies. This issue with transplantation is very real with animals born in captivity, which is why many are put through simulation exercises such as hunting and hearing the calls of predators, so that they may be able to survive in the wild, when transferred.</span>
8 0
3 years ago
To which functional class of proteins does lysozyme belong?
PSYCHO15rus [73]
Lysozymes are under the enzymes-functional class of proteins. Enzymes are the ones responsible for the acceleration of chemical reactions. These are the macromolecular biological catalysts. <span> When we say enzymes, these are proteins which are directly related to the facilitation of the biochemical reactions. These include lactase and pepsin. You can usually hear these when learning about specialty diets or digestive medical conditions. Some of the examples of this protein’s presence are found in tears, human milk, saliva, and mucus. It is because of their ability to break down bacterial cell walls in order to protein improvement and nucleic extraction of efficiency make these lysozymes important </span>proteins<span> in living organisms. The gene responsible for the encoding of the lyzozome enzyme is called the LYZ gene.</span>
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3 years ago
what will be the result of photosystem II being exposed to less sunlight more glucose molecules will be produced
melisa1 [442]

Fewer hydrogen ions will be pumped into the Thylakoid when photosystem II being exposed to less sunlight more glucose molecules will be produced.

Photosystem II is the first membrane protein complex in oxygenic photosynthetic organisms in nature. It produces atmospheric oxygen to catalyze the photo-oxidation of water by using light energy. It oxidizes two molecules of water into one molecule of molecular oxygen.

Photosystem II the energy derived from absorption of photons is used to split water molecules to molecular oxygen and protons. The most important function of photosystem II (PSII) is its action as a water-plastoquinone oxido-reductase. At the expense of light energy, water is split, and oxygen and plastoquinol are formed.

To learn more about Photosystem II , here

brainly.com/question/13211869

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8 0
2 years ago
What happens to the number of mice after the first 32 weeks?
Lilit [14]

Answer:

they all die and suffer a horrible unimaginable torture in hell with cats eating them from the eyes then tails then feet then left to bleed out in the name of Jesus

3 0
3 years ago
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