Please help?
Which is an example of an internal stimulus?
Aa sudden change of air temperature
Ban artificial light that attracts insects
Can increase in the amount of water available to a plant
Da decrease in oxygen levels in the blood during exercise
Which is an example of an internal stimulus?
Aa sudden change of air temperature
Ban artificial light that attracts insects
Can increase in the amount of water available to a plant
Da decrease in oxygen levels in the blood during exercise