The stomata closes down at night when there is no sun and there's no photosynthesis. It also closes down when the air is dry and when it's hot so as to prevent excessive loss of water.
Answer:
c
Explanation:
Gas exchange. Gas exchange occurs as a result of respiration, when carbon dioxide is excreted and oxygen taken up, and photosynthesis, when oxygen is excreted and carbon dioxide is taken up. The rate of gas exchange is affected by: the area available for diffusion.
Answer: Hello :)
Explanation: Speciation and the three selections (directional, disruptive, and stabilizing) all affect biodiversity. ... The affects of this are the evolution of a new species, genetic variation, and an increase in biodiversity. Stabilizing selection is a process by which average individuals in a population are favored.
<span>The correct answer is that its primary function is to connect, support and anchor various parts of the body. It can either connect bones, or it can connect muscles. It also ensures that they don't move in an unexpected manner and that your bones don't randomly fall out of sockets. It's very useful and you couldn't move without it.</span>
Plants produce oxygen that animals use for respiration
