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klasskru [66]
3 years ago
10

What causes the equinox to occur twice a year?

Biology
2 answers:
blondinia [14]3 years ago
4 0

Answer:

tilt and orbit of the Earth combine in a way that the axis is inclined away from the sun

Explanation:

We have an equinox twice a year. The Spring and Fall equinox. An equinox occurs when the tilt of the Earth's axis and Earth's orbit around the sun combine in such a way that the axis is inclined away from the sun.

vfiekz [6]3 years ago
3 0

Answer:

An equinox is an event that takes place in Earth's orbit around the sun. ... The equinoxes and solstices are caused by Earth's tilt on its axis and ceaseless motion in orbit. You can think of an equinox as happening on the imaginary dome of our sky, or as an event that happens in Earth's orbit around the sun.

Explanation:

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Answer:

Polar

Explanation:

In a water molecule, the oxygen atom is bigger and has a greater pull on the electrons than the hydrogen atoms do. This makes the molecule polar.

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A new kind of tulip is produced that develops only purple or pink flowers. Assume that flower color is controlled by a single-ge
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Answer:

Explanation:

the purple allele (C) is dominant to the pink allele (c).

The frequency of C represents p while that of c represent q. Using the formula p+q= 1

The proportion of pink flower is 153/1000 = 0.153. This is also the frequency of the genotype cc (q^2).

Thud to find q which is the frequency of the c allele,

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q = 0.3912

From the formula p +q = 1 we can find p p = 1 - 0.3912

p which is the frequency of the C allele

p = 0.6088.

B. the proportion of all purple flowering plants that are heterozygotes and homozygotes is 847 / 1000 = 0.847

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