Answer:
I think its true
Explanation:
The chromosomal sex of the embryo is established at fertilization. However, 6 weeks elapse in humans before the first signs of sex differentiation are noticed. Sex differentiation involves a series of events whereby the sexually indifferent gonads and genitalia progressively acquire male or female characteristics.
The habitat with equal numbers of all the different species will have the higher diversity.
Scales provide protection, they have lungs for breathing air, internal reproduction allows them to reproduce on land.