In DNA replication, which type of molecule is a primer?

What is the main difference between pathogenic bacteria, pathogenic viruses, and viroids

What will be an ideal response?

Exposure to light _____ melatonin levels

a. raises c. does not affect b. lowers

In the nineteenth century, prevailing beliefs came

into conflict with findings from all of these EXCEPT a. biogeography. b. comparative morphology. c. the fossil record. d. plate tectonics. e. global exploration.

Scuba divers use a BCD to control buoyancy. It is essentially a bag that can be inflated or deflated to prevent excessive sinking or floating. How do bony fish accomplish this?

A. They adjust their position using the pectoral and pelvic fins. B. They adjust the level of gasses in their swim bladder. C. They pump their operculum. D. They swim rapidly to saturate the blood with oxygen.