The answer to this question is Speciation
When biogeographic isolation happen, the population of a certain species will be totally isolated (separated) from other species, which cause that population unable to cross-breeds with other species. This will form a unque and special species because that population will always maintain a certain characteristic unlike other population that are forced to cross-breed
Answer:
50 %
Explanation:
A woman has fixed number of eggs. With each menstrual cycle, one egg is released. By the time a woman reaches the age of early 40s, the egg count has reduced tremendously and the chances of a woman being fertile are very low.
Along with women, men also develop some issues with their sperm count and speed.
Thus the probability of a man and woman having baby is 50% at the age of 40.
Answer:
i think it's C
Explanation:
meiosis is with sex cells and the resulting cells don't have paired chromosomes, making them haploid, and other cells have a complete set of chromosomes after mitosis, making them diploid.
Introns are cut out. Think of exons as the part of DNA that exit the nucleus (as RNA of course).
Answer:
(Feeling sad or miserable most of the time)When you're going through a tough time it's normal to feel down for a while, emotions like sadness and grief help make us human. But if you're feeling sad or miserable most of the time over a long period of time, you might have depression.
Explanation:
Family history. Though there are no specific genes that we can look at and trace to depression, if your family members have had depression, you are more likely also to experience depression. ...
Illness and health issues. ...
Medication, drugs, and alcohol. ...
Personality.
