Answer: The Sun's rotational equator is in the same flat plane. Earth was believed to be the center of the universe, which consisted only of those planets visible with the eye and an outlying sphere of fixed stars.
How is earth’s motion related to the origin of the galaxy and it’s solar system?
Answer:
<u>The Earth is a part of the galaxy and its solar system and as Earth was created with the big bang, it happened inside of them.</u>
Explanation:
The relative motion of the Earth around the solar system is the Earth is moving and spinning around at a tilt. Our solar system in the galaxy is moving and the galaxy in the universe is constantly moving. They are all moving around a a central object just as the Earth revolves around the Sun.
It is given that the allele B for the black coat is dominant over allele b for a brown coat.
A dominant allele always leads to the expression of the dominant trait in the heterozygous condition.
When a black and brown horse is crossed as given in the question and the result is a brown foal, then the genotype of the brown foal must be bb as the brown coat is a recessive trait.
Since each parent contributes one allele each for a given gene, the black horse must have b allele, and hence must be heterozygous Bb.
