The soon to be male organism, developing from the zygote, receives or inherits the X chromosome from his mother. His father provides him the y chromosome, the smaller of the 2 sex chromosomes.
Answer:
Option (B).
Explanation:
Heart is the main pumping organ of the body. The human heart is divided into four chambers that are right atria, right ventricles, left atria and left ventricles.
The left and right ventricles can easily be distinguished on the basis of their thickness. The right ventricle is less thicker than left ventricle. The thickness of right ventricle is 9mm whereas the thickness of left ventricle is around 40mm.
Thus, the correct answer is option (B).
Answer:
Another type of evidence for evolution is the presence of structures in organisms that share the same basic form. For example, the bones in the appendages of a human, dog, bird, and whale all share the same overall construction ([Figure 2]). That similarity results from their origin in the appendages of a common ancestor.
Explanation:
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Answer:
I don't have two but here is one.
Explanation:
In 1998, the Ecuadorian government enacted the Galápagos Special Law, a legal framework to protect the Galápagos.
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Primarily trouble is the answer I read it
