When a phosphate is attached to ADP to produce ATP: A: energy and water are used
B: energy is used and water is released
C: energy is released and water is used
D: energy and water are released

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight.which of these is the most likely effect on the ecosystem? a-an increase in biodiversity. b-an increase in immigration to the area. c-a decrease in available water. d-a decrease in plant growth.

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16

Blood stem cells may develop into any kind of human blood cells. what kind of stem cells are blood stem cells? a. multipotent stem cells o b. totipotent stem cells o c. pluripotent stem cells o d. unipotent stem cells