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pentagon [3]
3 years ago
15

It is common for scientists and amateur astronomers alike to use the constellations to locate objects in the sky. However, had s

cientists observed the sky during the time of the dinosaurs, they would not have had the same constellations to follow. Why is that?
Biology
1 answer:
Volgvan3 years ago
8 0

Answer:

Over millions of year some stars blow up. Then the star dust from those gather and create new stars.

Explanation:

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"A parakeet with green plumage is crossed to a white parakeet. The progeny are all green. Crossing these progeny together gave t
Galina-37 [17]

Answer: This is due to the theory of independent assortment of gene.

This means that gene separate and assort with each other, independently. There a gene that is recessive in the parents may not be recessive in the offspring.

A recessive gene is the gene that makes up the physical appearance of the offspring. While a dominant gene is the gene that exist in the offspring, but is not among the gene that makes up the physical appearance of the offspring.

For the two pure stock parent plants, their have yellow and blue as the dominant gene, while green and white are the recessive gene.

That's is why the yellow and blue gene has a tendency of occurrence in future generations.

For their first progeny which appears to be all green, is because the green gene has sorted themselves independently to be recessive, while others become dominant.

For the second progeny, the recessive gene from the parent plants which was carried by the offspring as dominant gene, now became recessive in some plants.

5 0
3 years ago
I need help! i’ll give 20 points
Varvara68 [4.7K]
ANSWER: in which the trait appears is its phenotype. Purebred purple flowers in pea plants have a genotype of two purple alleles, which induces a purple petal phenotype. Purebred white flowers have a genotype that reveals the white phenotype with two white alleles.


BRAINLIEST please!
6 0
2 years ago
Which two statements are true for the cross illustrated by this Punnet square? ( Can be more than one answer)
Lena [83]
The answer is C. hope this helped
3 0
3 years ago
Read 2 more answers
In the case of Pavlov’s dogs, the conditioned response was which of the following?
denis23 [38]

Answer:

A. Salivation at the sound of a bell

Explanation:

It is correct on PLATO

3 0
2 years ago
Por que se dice que los seres vivos son considerados sistema
Doss [256]

Answer:

La energía del organismo vivo no se puede perder ni ganar del entorno externo.

Explanation:

6 0
3 years ago
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