Please choose the answer that best completes the blanks of this sentence in the correct order. _______ are substances that provo
ke a specific immune response which is so discriminating that only a single molecular fragment, called an __________, actually interacts with the lymphocyte's receptor
The correct answer is antigens and epitope. An antigen is a substance which triggers an immune response in an organism. This can be either a foreign substance, such as a pathogen, or a specific part of the host organism (in this case this is an autoimmune response). The presence of an antigen activates a specific part of the immune system, called antibody. Each antigen has a specific antibody, which is tailored by the immune system accordingly. More specifically, the antibody has a specific structure, called paratope, which is complementary and binds like a key to a specific structure of the antigen, called epitope.
Answer: You take care of it too much. Some plants just want to be left alone. Some caretakers worry too much about the plants, they give it too much of the things they don't need and too less of the things they need.
Let's complete the question by adding the options to it
A) genetic bottleneck.
B) sexual selection.
C) habitat differentiation.
D) founder effect.
The RIGHT ANSWER IS D)
D) founder effect.
Explanation:
The founder effect refers to a loss in genetic variation due to formation of a new population from few number of individuals out of a larger population.
