What is the name given to any object or change in the environment that affects the external or internal state of an organism?

Where does blood go after it leaves the right side of the heart

What are ectothermic species? A. species that can generate heat from their internal processes B. species that live in cold climates C. species that derive heat from the environment D. species that live in the ocean

Could rna have been the original site of information storage in the primitive cell? a difficult problem with this possibility is that

What are the three types of passive transport

Which vessels carries oxygenated blood?

What are the bundles of chemicals in our body called?

Jake lives in the Northern Hemisphere. His cousin, Adriane, lives in the Southern Hemisphere. If it is March 20 (spring equinox) where Jake lives, which time of the year is it where Adriane lives? A. spring equinox B. fall equinox C.

Facts and data are objective, while and opinion is

Which process in the water cycle results directly in snow?

What is the difference in structure of the antennae and antennules?