What period did ice-age mammals first appear?

A farmer cultivates carrot in the field. (a) Make a possible food chain with four trophic levels that may develop there.

Is it true thet carbon atoms can bond together in straight chains, branch chains, or rings

When the sun reaches the end of released into space, forming a life cycle, the expanded part will be O A. red giant O B. brown dwarf c. white dwarf O O D. planetary nebula

Which property describes observable characteristics of matter like color? A) Chemical Property B) Physical Property C) Reactivity D) Sublimation

White blood cells have an important function in the human immune system. They leave the blood stream and attack and engulf invading bacteria and fungi. how do white blood cells move when outside of the blood stream

Foxes in the Arctic primarily eat hare. Hare eat plants, such as berries, leaves, and grass. If the plants in an Arctic area decrease in number, what will most likely happen to the populations of both the Arctic fox and the Arctic hare? A.

What is the purpose of the biogeochemical cycles?

Strong trading kingdoms emerge in w. africa because of an abundance of salt and?

List and briefly describe 6 major ways dissecting a human would be different than dissecting a frog.

What is a inorganic compound in a living cell