as well as reserving the body's energy, It insulates the body's heat, which is especially useful in colder climates.
Answer:
option C is the right answer
Explanation:
the cancer cells never die. They replication and grow into a tumor
Hormones because if you think about it. Vertebrates must have backbones and mammals have them. And, humans are basically mammals. And the glands secrete hormones.
The answer is a. the abiotic components of an ecosystem
