Answer:
twenty amino acids
Explanation:
and
carbon
nitrogen
oxygen
hydrogen, for the second question
Answer:
Cancer is caused by accumulated damage to genes. Such changes may be due to chance or to exposure to a cancer causing substance. The substances that cause cancer are called carcinogens. Occupational risk factors, including carcinogens such as many chemicals, radioactive materials and asbestos.
Explanation:
:)
Mitochondria cell would result from the Endo symbiosis of a cell with a cyanobacteriarium.
Which limbs the frog uses most to land on where and how he landing.
Breathing/movement, animals