The proteins that help defend the body against bacteria, toxins, and allergens are called antibodies. The antibody<span> (Ab) protein is also known as an immunoglobulin (Ig).
</span>These<span> large Y-shaped proteins are</span><span> produced by the immune system in order to prevent the body in response to the presence of a foreign substance. The foreign substance is called antigen.
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i think that it is a generator
They aren't all the same is not true of evolutionary trees.
<h3>What are evolutionary trees?</h3>
Evolutionary trees are trees that help to arrange and reconstruct the evolutionary history of species or groups of organisms belonging to either genera, families, or orders. The trees reconstruct and show case two form of information that is related to evolutionary change, cladogenesis and anagenesis.
Therefore, They aren't all the same is not true of evolutionary trees.
Learn more about evolutionary tress here.
brainly.com/question/2189834
<span>This is avoidance conditioning. Brenda has been able to successfully link the over-the-counter heartburn medicine to an avoidance of discomfort. By taking the pill, she has received a negative reinforcement due to the removal of the indigestion. The reinforcement will likely lead to Brenda continuing to take the medicine until she habituates to it and does not receive the same benefit(s).</span>
Answer:
C.. A hypothesis is a possible, testable explanation for a scientific question
