25 !
which thin-walled blood vessels lack muscular walls?

a. veins
b. arterioles
c. capillaries
d. arteries

Wich technque is not recommended for use as a supporting detail

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.

The first step in treating water from a river or lake is usually