Joel lives near the beach. One day he sees that the tide is much lower than he's ever seen before. The high tide is higher than he's seen before. Two weeks later, he notices that there is not much difference between low and high tide. In paragraph, tell what types of tides Joel observed. Tell how the positions of the sun, moon, and Earth can change the types of the tides.

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.