Am amniotic egg is first developed in the reptiles.
The membrane and shell make a protective membrane that can provide a safe environment for the cells to divide, and embryo to develop. Animals having an amniotic shell are called as amniotes. The other body parts develop later on.
Answer:
The correct answer is option b, that is, an exaptation.
Explanation:
The co-option or the associated term exaptation illustrates a shift in the activity of a trait at the time of evolution. For example, a trait can evolve as it performed one specific activity, however, afterwards, it may start to perform another function. It is common in both behavior and anatomy.
A classic illustration of exaptation is feathers of birds, at the start they were evolved for monitoring temperature, however, afterwards they were amended for flight. Thus, if the given hypothesis is accurate than the modern wings of insects are an example of exaptation.
Adaptive radiation refers to the diversification of an array of organisms to hold a distinct ecological niche. The origination of mutation takes place because of the errors in the replication of DNA. The hox genes in the insects assist them to specify that what appendages will get produced in a segment.
Answer:
False
Explanation:
Body cells do not undergo meiosis
If there are not to many leaves on the trees not too many birds will build a nest in it because the tree is not shaded and the birds will get hot and will not want the small birds to over heat and die.