Which situation most likely involves the hormone gibberellin?

the onset of winter dormancy

the response of a plant to gravity

the growth of top-located buds

the development of new seedlings

Which of the following examples can cause gene flow between populations? a.an increase in predators to a population of zebra b.a volcanic eruption that kills half of a population of mice c.bird droppings that contain seeds from a different location d.a person that sprays a toxin on a group of mosquitoes

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?