Vascular plants transport water and nutrients to all parts of the plant through- A. diffusion

B. phagocytosis

C. Xylem and phloem

D. Cellular respiration and photosynthesis

Embryonic stem cells are cells derived from an embryo. these cells can be used to create new tissues for patients suffering from certain illnesses and disorders. which statement best summarizes why the use of embryonic stem cells could be seen as unethical?

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes