The blackberry's seeds must be digested by a bird before they can sprout. what type of relationship do the blackberry plants and the birds have? a. commensalism b. mutualism c. neutralism d. parasitism

i couldn't quite decide what "subject" this would be, so i chose biology.

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

You are observing different types of cells in your science lab. one cell has many chloroplasts. what is the most likely function of this cell? a. energy production b. photosynthesis c. reproduction d. digestion

Which of the following requires the use of energy and the of transport proteins to move a molecule across a cell membrane?