A sperm from the male and an egg from a female. They under meiosis
Answer: The correct answer is hormone
Explanation:
A hormone is a chemical substance produced by an organ (usually called gland) and on production is released directly into the bloodstream to be transported to another part of the body (usually called target organ) where its exert its function.
An example of hormone is thyroxine, it is produced by the thyroid gland in the neck and exert function on almost all cells of the body
Answer:
mutualism interaction, commensalism interaction,parasitism
Explanation:
mutualism that both are used from the interaction
commensalism both are not benefited
parasitism only the parasite benefited
Responsive cells have a certain receptor for a particular hormone.