Answer:
Science is the study of nature around us.
Answer:
the immune system needs B cells and memory B cells form into memory cells so that remember the same pathogen and the antibody used to take it down for faster antibody production in future infections when most of the same antigens infect the body again.
Explanation:
When the body senses foreign substances like antigens, the immune system works to recognize the antigens and get rid of them. B Cells that have a certain antibody codes/proteins for the specific antigen are triggered or activated by T cells to make the specific antibodies, or immunoglobulins, to use against the antigens, by locking onto the antigen and putting the antibodies into the antigen directly.
The cells will be branched , multi nucleate and will contain bands of light and dark color so the answer is C
Answer:
Free running rhythms
Explanation:
Free running or Circadian rhythms are independent rhythms
that strive when the organism environment is unprovided with necesaary time cues such as constant light by switching on or off the genes that influence the molecular structure of biological clocks.
Answer:
the Echinoderms.
Explanation:
Examples of echinoderms: starfish, sea urchin, feather stars and sea cucumbers.
