Answer:
The correct answer is A- B cells are activated and release antibodies
Explanation:
When an antigen invades a mammals body, specific immune cells engulf and ingest it. Some of the digested pieces are displayed on the cells bodies, the next step will be that B cells are activated and release antibodies.
Cutting down trees results in loss of habitat for many animals in the wild, because over 70% of animals that live on land live in trees! Cutting down trees can also reduce our oxygen.
Bacteria and some other prokaryotes consists of restriction enzymes which are able to recognize specific sequences of DNA, called restriction sites. All restriction enzymes are able to recognize at least one or a few restriction sites. On identifying the target sequence, a restriction enzyme makes a double-stranded cut in the DNA molecule. This cut is a clear pattern which is easily identified as it is at or near the restriction site. A DNA fragment with complementary base fragments join with the DNA at the cut portion which is some times referred to as sticky ends
Answer:
True
Explanation:
If they do not share a common ancestor then they wouldn't have and resemblance. But if they do share a common ancestor then there has to be some sort of structural similarities in bot organisms that you're looking at.
Answer:
The independent variable is the one that is changed by the scientist. To insure
a fair test, a good experiment has only ONE independent variable. As the scientist
changes the independent variable, he or she records the data that they collect.
The dependent variable is the item that responds to the change of the
independent variable. The dependent variable depends/changes when the
independent variable is changed.
Explanation:
