Answer:
some sort of water system, (a river/groundwater/purification plant ect.)
Explanation:
Hydra make offspring by forming buds that break off and grow into new hydra
Amino acid reactions. Amino acids via their various chemical functionalities can undergo numerous chemical reactions.
Answer:
Explanation:
Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population.
ORR
Struggle for existence, variation and inheritance. These are said to be the necessary and sufficient conditions for natural selection to occur.