Rarefaction is used for which of the following 1. creating a representative sample
2. studying how disease impacts populations
3. rediscovering species thought to be extinct
4. determining which sea creatures live in an area

Which of the following is a testable hypotheses?

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.

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