What percentage of water on Earth is considered freshwater?

A. 2%

B. 3%

C. 4%

D. 5%

Explain why the populations of great apes in Africa are declining.

If a population lacks variation (fixed), no individual has any advantageous trait, and the environment changes for the worse. What will most likely happen to the population in terms of natural selection

Sex refers to biological distinctions between males and females. a. True b. False

What is the role of membrane bound vesicles in cytokinesis and plant cells

How do the promoter and operator work together to control gene expression?

Where is the moon's gravitational pull the strongest?

A turkey cooking in an oven will be ready when the internal temperature reaches 180°F. Convert this into Celsius and Kelvin

Adaptations often give organisms a competetive edge. a. True b. False

Biosphere II is a self-contained ecological system that was sealed with researchers inside. Unfortunately, the microbes in the soil consumed rich organic matter and produced carbon dioxide.

When the enzyme amylase from the pancreas is finally ready for use, it is stored within cell cytoplasmic vesicles called___. nuclei. zymogen granules. mitochondria. cristae. vacuoles.