in my school..this is given to the student who get 90% in all subjects in 6 yrs..this is very valuable for me..

What are hormones? a. they are minerals needed for proper bone formation. b. they are the parts of the body targeted by endocrine glands. c. they are substances needed for muscle and nerve activity. d. they are substances released by endocrine glands.

Which of the following statements describes the lysogenic cycle of lambda (λ) phage? a) after infection, the viral genes immediately turn the host cell into a lambda-producing factory, and the host cell then lyses.b) most of the prophage genes are activated by the product of a particular prophage gene.c) the phage genome replicates along with the host genome.d) the phage dna is copied and exits the cell as a phage.

Which of the following choices is the most important to do before starting an exercise program? a. see your doctor b. talk to your friends for advice c. lift some weights d. measure your body fat