Trees and vast forests protect the ground soil from erosion by . A) covering and stabilizing it
B) providing valuable nutrients
C) maintaining the habitat
D) shielding the ground from too much wind
E) all of the above

Which of these is not a function of some membrane proteins ? a.allowing polar molecules to enter the cell b.recognizing other types of cells c.receiving messeges from other cells b.carrying messages to oher cells

Which enzymes break down carbohydrates?

Which best describes a benefit of using dna technology in medicine? a) medicine can be produced in mass quantities. b) medicine can be distributed at a reduced cost. c) medicines have fewer side effects. d) medicines are resistant to antibiotics.