Answer:
antibodies being produced to fight off a pathogen inside the body
Explanation:
Specific immune responses, also known as the adaptive immune system are ways the body fights against pathogens. The body is able to identify cells that are unique to it. When pathogens bearing an unknown identity enter the body, antibodies are released to attack the antigens on the surface of these pathogens.
The body usually develops this immunity after a previous attack by the pathogen. Lymphocytes known as the B and T cells are released by the immune system t engulf the pathogens.
I believe the answer id Cnidaria
A muscle fiber will respond to a stimulus when that stimulus reaches the threshold level. These local classified potentials which are mainly related with external stimuli extent the axon preliminary segment and construct up to they manage to extent the threshold value. The bigger the stimulus the larger the depolarization or try to reach threshold.
Reproduction is to create or recreate something, usually a new living thing, such as a baby. ... Most bacteria reproduce by asexual reproduction. Some organisms can either reproduce sexually or asexually.
Sthe stages of meiosis are:
Prophase I
Metaphase I
Anaphase I
Telophase I
