Where on earth did life first begin?

Why do traits that give an organism a disadvantage exist during meiosis? Please be as descriptive as possible and write it in yo

Roman55 [17]

Answer:

Meiosis is important because during sexual reproduction, it ensures that all produced organisms have the correct number of chromosomes. It is also responsible for producing genetic variations during the process of recombination, and it repairs some genetic defects.

The disadvantage from not having the trait normally arises only after the reproductive stage of the individual's lifecycle is mostly over. This is a special case of "no strong pressure", because evolution selects genes, not the organism. In other words the beneficial mutation does not alter the reproductive fitness.

Explanation:

Meiosis is important because during sexual reproduction, it ensures that all produced organisms have the correct number of chromosomes. It is also responsible for producing genetic variations during the process of recombination, and it repairs some genetic defects.

6 0

3 years ago

As the size of some animals has evolved to greater sizes, the effectiveness of their adaptations that promote exchanges with the

mezya [45]

Answer:

More branching or folds.

Explanation:

Adaptation may be defined as the ability of the organism to adapt and survive according to its environment. Physical, physiological and chemical changes occur in the body of organism for the adaptation process.

The evolution of the increase in the size of the animals might also changes their internal physiology. The lungs and digestive tract also evolved as the size of the organism get bigger. The lungs has the alveoli to increase the surface area and inhalation of more oxygen in the body. Digestive system has villi or folds that increases the surface area for digestion and absorption.

Thus, the answer is more branching or folds.

3 0

3 years ago

the endoplasmic reticulum (er) serves as a the endoplasmic reticulum (er) serves as a protein shuffle transpiration area transpo

lutik1710 [3]

Endoplasmic reticulum serves as transpiration area. The correct option is B.

<h3>What is endoplasmic reticulum?</h3>

The endoplasmic reticulum (ER) is a large, dynamic structure in the cell that performs numerous functions such as calcium storage, protein synthesis, and lipid metabolism.

The ER's various functions are carried out by distinct domains, which include tubules, sheets, and the nuclear envelope.

The endoplasmic reticulum can be smooth or rough, and its function is generally to produce proteins that allow the rest of the cell to function.

Ribosomes, which are small, round organelles that make proteins, are found in the rough endoplasmic reticulum.

Thus, the correct option is B.

For more details regarding endoplasmic reticulum, visit:

brainly.com/question/13118914

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3 0

1 year ago

When a populations growth slows and then stops, following a period of exponential growth this occurs:

Amiraneli [1.4K]

Answer:

Logistic Growth

Explanation:

4 0

4 years ago

In a aquatic food web which organism would get its energy directly from the sun?

Phantasy [73]

As long as you are referring to the green plants aka producers of the food chain/web.

5 0

3 years ago