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4 years ago

As the sun ages, it contains:

Biology

1 answer:

saveliy_v [14]4 years ago

4 0

The correct answer is C. More helium and less hydrogen

Explanation:

The Sun, which is the center of the solar system, is mainly composed of two gases: hydrogen and helium. Additionally, every second and through nuclear fusion the hydrogen is fused and this creates helium, which is a heavier element. This implies as the sun ages the amount of hydrogen will decrease as the amount of helium increases, as a result of constant nuclear fusion. Indeed, right now helium exists in a lower quantity than hydrogen, but every second, minute, hour, etc. the amount of helium increases, and it is expected in millions of years there is more helium than hydrogen.

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Please indicate the correct number of NADH molecules made during electron

Veseljchak [2.6K]

Answer:

sort of a trick question. but the process starts off with 3 NADH the rest are FADH. and no more NADH are produced so, 3.

3 0

3 years ago

Which best describes the final phase in our sun's life cycle?

Hunter-Best [27]

Answer:

The correct option is B. It will collapse and become a white dwarf.

Explanation:

Scientists present a theory that the major parts of the Sun's life cycle would be:

The Sun would be exist in the form of a red giant first dispersing an enormous amount of light energy and heat energy.

Then, it will get converted into a white dwarf.

After becoming a white dwarf, the Sun will start to get cool.

8 0

3 years ago

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When particles spread out it is called

nadezda [96]

When particles spread out it is called diffusion.

5 0

3 years ago

Assume that all possible “ABO” blood phenotypes are present in a human population that is in Hardy-Weinberg equilibrium. If the

SOVA2 [1]

Answer:

the frequency of individuals with Type B blood in the population is 0.1977

Explanation:

Given:

Frequency of A allele is p = 0.24

Frequency of the individuals with blood type O is r = 0.38

Question: What is the frequency of individuals with Type B blood in the population, fB = ?

You need to apply the Hardy-Weinberg Equilibrium:

p²+q²+r²+2pq+2pr+2qr = 1

Here,

p, q and r are the frequencies of the alleles

Calculating the frequency of the allele q:

$r=\sqrt{0.38} =0.6164$

q = 1-p-r = 1-0.24-0.6164 = 0.1436

Frequency of individuals with type B blood:

$f_{B} =q^{2} +2qr=(0.1436)^{2} +(2*0.1436*0.6164)=0.1977$

3 0

3 years ago

The rock in the picture is rhyolite, an extrusive igneous rock. Based on its appearance, how would you classify this rock?

Ronch [10]

Answer:

A. Felsic

Explanation:

The rock would be classified as a FELSIC rock based on its appearance.

To classify a rock based on its appearance, we would rely more on the features we can observe when we look at it. Some of the features are colour and mineral grains. We can also use its feel, cleavage, and some other physical properties.

Looking at the picture, the rock is light coloured. The mineral grains also have a fine texture because the mineral boundaries cannot easily be resolved by naked eyes.

A light coloured igneous rock is said to be FELSIC with a rich composition of silica and feldspars. Mafic igneous rocks are usually dark and have low silica contents.

From the texture of the mineral grains, we know the rock is an extrusive rock. It must have formed on the surface or very close to the surface. This implies that, the minerals could not grow into larger crystals. They cooled rapidly on encountering surface temperatures.

A rock of this type is a Rhyolite. The intrusive equivalent is granite. Granite differs from Rhyolite because they have large mineral crystals. They are both felsic.

8 0

3 years ago

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