Explanation:
this is cheeeeeeeeeeemistry
Answer:
A dam that could allow fish to still pass through is a fishway/fish pass its a "fish ladder" that is structured on or around artificial or natural barriers to allow for fishes natural migration and the movement for potamodromous species.
Answer:
Crossing over occurs in meiosis but not in mitosis
Explanation:
Miosis is a process in which diploid cell becomes a haploid cell.which is essential for sexual reproduction In mitosis the daughter cells are identical whereas in meiosis the daughter cells are different due to crossing over.the process of crossing over does not occur in mitosis.
Answer:
waste of other animals,eating dead animals and plants