Answer: A. Nitrogen
Explanation: Nucleic acids contain the same elements as proteins: carbon, hydrogen, oxygen, nitrogen; plus phosphorous (C, H, O, N, and P). Nucleic acids are very large macromolecules composed of repetitive units of the same building blocks, nucleotides, similar to a pearl necklace made of many pearls.
Answer: Mutualism
Explanation:
Mutualism is a symbiotic relationship in which both interacting species receives the benefit for togetherness.
In the given situation, the birds are receiving food in the form of ticks and the rhinoceros are receiving protection against the predatory blood sucking ticks.
Answer:
A. an increase in the greenhouse effect
Explanation:
Carbon dioxide controls the amount of water vapor in the atmosphere and thus the size of the greenhouse effect.
Answer:
When it is in position one because it gathers all the energy to fall and slowly gets faster.
Magnesium Phosphate is the answer
