In muscle tissue, the activity of glycogen phosphorylase b is allosterically controlled with

a. ATP acting as a positive effector and glucose 6‑phosphate acting as a negative effector.
b. ATP acting as a positive effector and AMP acting as a negative effector.
c. AMP acting as a positive effector and adenosine acting as a negative effector.
d. AMP acting as a positive effector and ATP acting as a negative effector.

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.