Answer:Appearance, population and inheritance.
Explanation:
Answer: 1. The adaptive immune response can recognize and respond to an almost limitless array of antigens
Explanation: part of the immune response depends on the antibodies that our body has. These antibodies can recognize antigens which are molecules in the surface of the pathogens, attach to them and destroy or block the harmful effects of pathogens.
Adaptive response allow to the cells of the immune system to develope and synthesize new antibodies. This is helpful because cells can recognize different pathogens, attack them and increase the immunological response of the body or even attack different pathogens at the same time.
Answer:
they might mate because of there similarities and there similaritie is the fact they eat the same food.
Explanation:
unless they are different types of animals because no animal will mate with another unless they are both the same type, if they are not the same type they feel uncomfortable.
A theory is an explanation of an aspect of the natural based on careful examination of facts. A theory by its definition can be repeatedly tested. A theory can be changed or replaced because of the following reasons:
New technology is developed that provides more information about the theory. (New technologies can lead to new results).
New experimental methods are designed to test a theory.
New information is discovered that does not support the theory.
D) to introduce a gene from a breed in which the problem is less evident
