Answer:
1)Species are separated from one another by prezygotic and postzygotic barriers, which prevent mating or the production of viable, fertile offspring.
2)Speciation is the process by which new species form.
3) It occurs when groups in a species become reproductively isolated and diverge.
Explanation:
Answer:
At the beginning of the follicular phase, the lining of the uterus (endometrium) is thick with fluids and nutrients designed to nourish an embryo. If no egg has been fertilized, estrogen and progesterone levels are low. As a result, the top layers of the endometrium are shed, and menstrual bleeding occurs.
TACGGCGATT
All you need to do is switch the letter since A=T and C=G
Hood this helps!
Grams should be an appropriate unit to measure an apple. It is a metric unit and is usually used for the mass of an object
Answer:
the steps are
we need to keep tight security system in forest area
hunting of animal must be stopped
