The channels in cell membranes that help substances to move in and out of cells during active transport are made of
A. protein.
B. chlorophyll.
C. cytoplasm
D. carbohydrates.

What is the following best defines climate?

Emmet didn’t want to weed the garden. he put off the task toward the end of the day. he even tried to get his sister to do the job. what type of goal orientation did emmet display toward weeding the garden?

Select all that apply. why are common names not a good reference to a species? common names can be in different languages common names vary with location common names vary with culture common names vary with species color