In a cell, what is the functiIn a cell, what is the function of the cell membrane? A.
It generates energy for the cell.
B.
It controls the entry and exit of substances.
C.
It removes waste and stores ingested food.
D.
It only maintains the cell shape.
on of the cell membrane?

Which element provides strength to the exoskeleton of clams and oysters

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.

What are some natural processes that represent physical and chemical changes?