Stomata are tiny pores present in the leaf that allows gas exchange and is where water vapour leaves plants and carbon dioxide enters. Special cells called guard cells present in the stomata, control each pore's opening or closing. When stomata are open, transpiration rates increase; when they are closed, transpiration rates decrease.
The answer i believe is “c”
The correct answer would be gametes
Answer: A) Tropical regions have more available niches into which new species can occupy.
Explanation: USATestPrep
The two main types are DNA and RNA
