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kozerog [31]
3 years ago
13

What's the main reason that the sex ratio is usually below 100?

Biology
2 answers:
Fittoniya [83]3 years ago
8 0
On average, women live longer than men
irakobra [83]3 years ago
4 0

Responder:

B. En promedio, las mujeres viven más que los hombres.

Explicación:

No tengo una explicación, ¡pero espero que te ayude!

<h3>Translated:</h3>

Answer:

B.On average, women live longer than men

Explanation:

I don't have an explanation, But hope it helps you!

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What are inputs and outputs of a cell cycle ?
lianna [129]

Answer:

The inputs can be material, such as the silicon used in the computer chips in a phone, or energy, which is used, for example, to manufacture and operate a phone. Outputs can be usable products or wastes, which must be disposed or recycled. A life cycle analysis of a cell phone also includes an analysis of its individual parts.

Explanation:

Hope  this helps!!!

-BB

6 0
3 years ago
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A scientist has been tracking and studying a population of deer in Yellowstone National Park. He surveys the population every si
pishuonlain [190]
Hi,

I think that you're missing some options, but here they are (let me know if I'm right!

-A population of wolves was introduced
-The amount of disease in the deer population decreased
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Now, if the gene diversity decreased, it means that a lot of deer died. This could happen because wolves were introduced -this is the correct answer, and the wolves ate some deer.

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3 years ago
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During exercise how are the circulatory and respiratory system working together
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Answer:

The cardio-respiratory system works together to get oxygen to the working muscles and remove carbon dioxide from the body. During exercise the muscles need more oxygen in order to contract and they produce more carbon dioxide as a waste product.

Explanation:

6 0
2 years ago
Which is an arrangement of genes consisting of an operator, a promoter, and a repressor?
Lena [83]
<span>The gene sequence containing an operator, promoter and repressor is known as an operon. These genes are called as structural genes. the operon is regulated by the presence/absence of the inducer such as glucose/lactose. It may also be a constitutive operon, which works all the time.</span>
4 0
3 years ago
Which 2 features help orchids survive
lord [1]

Answer:

Orchids have some unique features which help them in the evolutionary race. They produce masses of pollen (which improves the chances of pollination), very light seeds (which makes them easier to spread) and can grow on other plants using them to support their own growth.

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