They're called endorphins!
A biologist would most likely concentrate on homologous features to find and analyse an evolutionary relationship between two species, finding homologous traits between species might help biologists to understand the evolution of animals, whereas concentrating on analogous features might help to compare the evolution of different species. Hope this helped!
Lymphocytes is the answer.
A phobia is an intense fear of something that, in reality, poses little or no actual danger. Common phobias and fears include closed-in places, heights, highway driving, flying insects, snakes, and needles. However, you can develop phobias of virtually anything.
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A Phobia is an irrational fear of something that's unlikely to cause harm. The word itself comes from the Greek word“phobos,” which means “fear” or “horror.” Hydrophobia, for example, literally translates to fear of water. When someone has a phobia, they experience intense fear of a certain object or situation.
Answer:
Enzymes are proteins that increase (only) the rate of chemical reactions converting substrate into product.
Catalysts are substances that increase or decrease the rate of a chemical reaction but still remain unchanged.