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natulia [17]
2 years ago
11

Select the best answer. Which statement is true about all convection currents?(1 point)

Biology
1 answer:
erastova [34]2 years ago
3 0

Answer:

A it is made possible by heat and pressure

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Fossils show that ancestors of the giraffe had shorter necks than the modern giraffe. The evolution of the modern giraffe may be
MaRussiya [10]

Answer:

B. Directional selection

Explanation:

When natural selection starts to choose one phenotypes that is an extreme (as in, a really small neck or a really long neck), this is an example of <u>directional selection.</u> It makes sense for giraffes to have evolved this way, because the longer the neck, the more ably they can eat food from high branches. The more food they could get, the more chance of reproduction, the more "evolutionarily fit" they are.

Stabilizing selection is when national selection picks average phenotypes (like a medium-sized neck). Disruptive selection is when the extremes are both picked (like all the medium-sized neck giraffes die, and two different species start to emerge). Sexual selection is picking a mate based on traits. Clearly, those answers don't work here.

8 0
3 years ago
⦁ In what stage of an animal’s life cycle do most cells differentiate?
Ber [7]

Answer:

Reproduction

Explanation:

4 0
2 years ago
Read 2 more answers
During photosynthesis, plants take in light energy from the Sun, carbon dioxide from the air, and water through their roots. Whi
Diano4ka-milaya [45]
During photosynthesis, plants take in light energy from the Sun, carbon dioxide from the air, and water through their roots. Oxygen is a product of photosynthesis.
3 0
3 years ago
Two questions Why do people change their genders and should i like a gay person
11111nata11111 [884]

Answer:

1. because theyre transgender (i can explain)

2. in what manner??

Explanation:

transgender is when you feel some sort of dysphoria (google it if you don't know what i means) that is called gender dysphoria, which is what makes people feel the NEED to transition, though not everyone does. they don't identify with their body, in that in their mind they feel they are another gender but their body doesn't reflect that.

3 0
3 years ago
Read 2 more answers
Which of the following is not a possible effect of increasing carbon dioxide levels in the atmosphere? a. increase in water cont
dolphi86 [110]

Answer:

C. Cutting down forests.

Explanation:

Carbon dioxide is an inorganic gaseous molecule with the chemical formula, CO2. It is naturally released into the atmosphere via a lot of processes. However, CO2 is the most important greenhouse gas as it contributes the most to the global warming effect of the Earth.

The effects of an increase in CO2 concentration in the atmosphere is as follows:

- increase in water contamination and floods

- ocean acidification

- reduction of cold-related deaths

However, the cutting down of forests is not an effect of an increase in CO2 concentration but rather a cause.

4 0
3 years ago
Read 2 more answers
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