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2 years ago

Can mutations be inherited by offspring

2 answers:

8 0

Some mutations are hereditary because they are passed down to an offspring from a parent carrying a mutation through the germ line, meaning through an egg or sperm cell carrying the mutation. There are also nonhereditary mutations that occur in cells outside of the germ line, which are called somatic mutations.

Murljashka [212]2 years ago

4 0

Answer:

Yes

Explanation:

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Why do plant cells need a cell wall and chloroplasts but animal cells do not?

mylen [45]

Answer:

Plant cell needs cell wall whereas animal cell do not because the plants need rigid structure so that they can grow up and out . ... So animal cells can have various shapes, but plant cells only have the shapes of their cell walls.

Explanation:

Thats because Plant cell needs cell wall whereas animal cell do not because the plants need rigid structure so that they can grow up and out . ... So animal cells can have various shapes, but plant cells only have the shapes of their cell walls.

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2 years ago

Three species of frogs—Lithobates pipiens, Lithobates clamitans, and Lithobates sylvatica—all mate in the same ponds, but they p

Sladkaya [172]

Answer:

"This is a specific example of a reproductive barrier, called behavioral isolation or sexual isolation".

Explanation:

Reproductive barriers are isolation mechanisms that prevent mating between two or more species. The prezygotic mechanism avoids fertilization between individuals of different species, and the postzygotic mechanism avoids the zygote to develop and reach the adult stage.

There are different types of reproductive barriers, one of them is behavioral isolation, also known as ethological isolation or sexual isolation. This is a prezygotic barrier that refers to the fact that many species occupy the same area but they are not sexually attracted to each other and might even be rejected because of behavioral factors, and this is why they do not get to mate. This mechanism includes courtship patterns or mating rituals, and specific chemical signals that allow the recognition between individuals of the same species. A typical example is the recognition songs of some species like frogs, birds, insects, and etcetera.

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2 years ago

According to what you have learned about the circulatory and respiratory systems, explain how and why your heart changed its rat

maks197457 [2]

Answer:

Your heart changes its rate depending on the activity, so that it can carry blood to your muscles, and therefore it needs to beat stronger if you are performing some exercise, or not so strong if you are sleeping, for example.

Explanation:

Your heart is continuously beating to keep blood circulating throughout your body.

So, here it is why your heart changes its rate: Its rate changes depending on your activity level; it is lower while you are asleep and at rest and higher while you exercise to supply your muscles with enough freshly oxygenated blood to keep the functioning at a high level.

And how: depending on your activity level, your heart has to pump enough blood to your muscles. Blood carries needed oxygen and other nutrients. Muscles need more blood sugar than any other tissue especially when working hard. To supply your muscles with oxygen your heart needs to beat faster, and this builds up your heart muscles.

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2 years ago

What is the function of the antenna proteins in photosynthesis

user100 [1]

Answer:

harvesting of light energy and its transfer to the core

Explanation:

basically, the antennas are ablet o pick up light which is then transferred as energy.

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2 years ago

What is a tide?

marin [14]

Answer:

D. a continuous rise and fall of water in season oceans

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3 years ago