Answer:
option B is correct
Explanation:
the effect of external physical factor on cell division is clearly seen on in density dependent inhibition( a phenomenon in which crowded cell stop dividing)
Answer:
Facilitated diffusion require no energy and travels down the gradient of concentration. On the other hand, active transport takes energy and travels up the gradient of concentration.
Hope this helps! Have a great day!!
Answer:
a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.
Explanation:
<span>Correct matches: chemicals with their descriptions.
1. abscisic acid ( is the hormone that regulates survival functions of a plant, such as the opening and closing of stomata)
2. auxins (chemicals produced in plants that are characterized by their ability to induce cell elongation and cell division in stems)
3. cytokinins (chemicals that helps plant cells divide)</span>
<span>4. ethylene (a hormone that promotes ripening of fruit or blooming of flowers) </span>
<span>5. gibberellins (chemicals produced by plants that stimulate stem elongation, seed germination, and flowering) </span>
