If scientists were trying to construct recombinant dna molecules, how would they do it? by combining the rna of two different organisms by combining the proteins from two different organisms by combining the dna of two different organisms by using rna from plants

Plzz hurry im being timed during times of vigorous physical activity, muscles require a constant supply of oxygen. how does the body respond to these needs? a. breathing rate and heart rate both decrease. b. breathing rate and heart rate both increase. c. heart rate decreases, but breathing rate remains stable. d. breathing rate increases, but heart rate remains stable.

What type of specimens where you able to see under each of the microscopes in the microscope activity

Does masterbation affect height growth or loss of growth hormone?