An ecological niche is an organism's specific habitat in an ecosystem.
It is where it lives and feeds, etc.
Answer:
I think this would help you Sun, water, food, animals, etc.
Answer:
Plants absorb nitrogen from: the soil ( second choice)
Human sperm and eggs contain 23 chromosomes. Human zygotes contain 46<span> chromosomes. The type of cell division that produces gametes with half the normal chromosome number is called meiosis. It is used to produce cells for repair and asexual reproduction.</span>
