In the kidneys both useful and wasteful substances are removed from the blood by A. reabsorption. B. excretion. C. filtration. D. respiration.

What pathogen causes flu and the common cold

Magma from Earth's interior is this from the cracks at mid-ocean ridges true or false

The chance that a particular event will occur is called the events

A geologist finds four layers of sedimentary rock. She determines that no geologic events have shifted the layers. She labels the layers A, B, C, and from the top to the bottom. Which statement about these layers is accurate? As older than B.

Which of the following are produced by photosynthesis?

During the winter months, water on the surface of a pond will typically freeze and this ice acts as an insulator for the water beneath it. As a result, aquatic life is able to survive during the cold winter.

Organism that grows in colonies and made up of Eukaryotic

What are giant, multinucleated cells that remove and recycle bone matrix called?

A garden is an example of a

During what geological period do the angiosperms become more common