Natural selection is an evolutionary mechanism by which (B.) advantageous traits become more common in a population.
Answer:
Guard cells perceive and process environmental and endogenous stimuli such as light, humidity, CO2 concentration, temperature, drought, and plant hormones to trigger cellular responses resulting in stomatal opening or closure.
Explanation:
C. Increased genetic variation
When an active cold front over takes a warm front is creates tornadoes.
nutrient absorption is the answer
