Nuclear pores have proteins that open and close, controlling flow of cell solutions and molecules in and out of the nuclear envelope (a double-thick membrane). in this, nuclear pores are similar in structure and function to

How can you keep track of variables in a science experiment?

Which organelle breaks down sugar molecules that supply energy to the cell ?

Science which of the following is an example of a cyclic behavior that is seasonal? i think the answer is d, i just need to double check : ). a. running from predators. b. searching for water. c. hunting at night. d. migrating for warmth. ***