Why do you think plant cells need a cell wall as well as a cell membrane? What do you think would happen to plants if they did not have a cell wall?

1. the is the thinnest part of the earth. 2. the is the thickest part of the earth. 3. what metals are mentioned in the text?

What is the correct order of cell division? include what happens in each phase

What two factors does carrying capacity compare? population size and resource use population growth and resource availability resource use and time population size and time