What best describes the role of waste during digestion and metabolism? 1. Waste is less likely to leave the body during metabolism and more likely to elave the body during digestion.
2.Waste can be returned from the blood stream to the intestines to be eliminated or released through pores on the skin.
3. Waste is almost never created or removed from the body during the metabolism and digestion processes.
4. Waste is destroyed during the metabolism process, so that there is no waste during the digestion process.

The theories on the expansion of galaxies maybe re-examined to strengthen science should not be tested to strengthen science will weaken scientific knowledge if they change will become laws if they don't change

One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions,because prokaryotes don't have nuclei.

What is the ecological role of food chains and food webs