Answer:
A. The variation resulting from meiosis and the union of gametes means some individuals will have a chance of colonizing diverse distant environments successfully.
D. Vegetative propagation is more efficient than sexual reproduction when the current generation is well adapted to the local environment.
Answer:
The correct answer to this question should be a drup called antibiotics.
In our case, we need to look for something that helps us deal with bacteria infection, or in other words, treating diseases caused by bacteria. A drup that interfers with viral DNA is responsible for treating a kind of virus that basically attack DNA to live. And I would consider the drug that moderates you use of sugar should be used to solve problem related to the amount of sugar in your body, maybe diabetes. Antibiotics is especially designed to kill bacteria, so it is the correct answer.
One Y and one X chromosome.
