Answer: B
Explanation: So air, like most other substances, expands when heated and contracts when cooled. Radiation cooling occurs when air near the ground is cooled by the Earth's surface losing heat by radiation.
There are generally three kinds of mutation.
1. Substitution
2. Deletion
3. Insertion
A substitution is change one nucleotide for another
A deletion is removing a nucleotide
An addition Is inserting a nucleotide
Answer:
shrews
Explanation:
because they both eat the same thing / have the same food source, they are directly fighting for resources
Answer:
So they can breathe
Explanation:
Without oxygen the fish can't breath, they would then suffocate and die.
Sorry if your asking for a more detailed answer, but I'm not sure what else to say
