Answer is D cilia are absent in plant cells
Answer:
Growth factors
Explanation:
Growth factors, unlike hormone, have an influence on most cells on the body. They promote cell division and differentiation. Therefore, they are significant in promoting the cell cycle. Therefore, they should be able to be recognized by checkpoint proteins that regulate the cell cycle by either promoting progression or arresting the cell cycle.
activities of living organisms (animals, burrows, plant roots), pressure from overlying load/materials and atmospheric conditions.
Answer:
Explanation:
I think it is: acetylcholine (neurotransmitter) - motor neuron - contract
second question: diffusion because of opening of ca2+ channels
Answer:
One right that every American is born with can be the freedom of speech. According to the first Amendment, American citizens are given this right. This right is something that every American is born with because everyone is allowed to express their ideas and opinions, within certain limits. A person's speech can't necessarily be restricted, but there can be consequences for certain things.