A gardener rakes the leaves in her yard in the fall and scatters them in a thick layer over her garden beds. By late spring the next year the leaves have disappeared. This could be the work of which types of creatures?

Question 5 options:

Which of the following will lead to speciation? A. Variation in gene pool B. Lack of mutations C. Absence of natural selection

Earth's crust sits on top of the mantle. t or f

A student made this diagram after observing the organisms of a model ecosystem in a large terrarium. Flies Crickets Pill bugs Grass Marigolds Which food chain shows a path of energy flow in the student's model?

Marta is an editor and she spends a great deal of time typing on her computer. She begins to feel numbness and tingling in her anterior and lateral hands and weakness in the muscles of her forearm that flex her hand.

Drag each label to identify which glands would be responsible for each descriptive role or function

Explain how egestion differs from excretion (3 marks)

The introduction of livestock to an area leads to over-grazing that removes native grasse

What is someone called that studies plants to learn about there environment

Which of the following expresses why water is so important to living organisms? It assists organisms in releasing carbon dioxide. It assists organisms in breathing in oxygen. It assists organisms in obtaining certain dissolvable substances.

How are chloroplasts and cyanobacteria thought to be related?