P generation is the generation before F1
Answer: a is energy of activation.
Explanation: Because energy of activation is the minimum energy which must be provided to a chemical or nuclear system with potential reactants to result in a chemical reaction, nuclear reaction, or various other physical phenomena.
Answer:
Gills
Explanation:
In order to remove oxygen from the water, they rely on special organs called "gills." Gills are feathery organs full of blood vessels. A fish breathes by taking water into its mouth and forcing it out through the gill passages.
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How Do Fish Breathe
Answer:
endothermic is the right answer
Answer: adult tissues
Explanation: Adult stem cells. These stem cells are found in small numbers in most adult tissues, such as bone marrow or fat. Compared with embryonic stem cells, adult stem cells have a more limited ability to give rise to various cells of the body.
