Why is carbon important to organisms

Which is a renewable source of energy?

When nerve cells establish a voltage across their membrane with a sodium~potassium pump, does this pump use ATP or does it produce ATP? Why? 2, Explain why the sodium·potassium pump would not be considered a cotransporter. 3.

Relative mass is a system of comparing atomic masses to carbon. True False

How many phases of mitosis is there?

Is anything needed by an organism for life?

Recognize and use signal words, Assignment Signal words let you know what's coming next in a sentence. Signal words show relationships between ideas. Use the drop-down menus to identify the signal words in each sentences.

Which processes are caused by convection currents in the mantle? Check all that apply. 1. earthquakes 2. ridge push 3. tsunamis 4. slab pull 5. volcanic eruptions 6. subduction

Imagine that you are studying the food preferences of a lizard species across its range. you have hypothesized that because these populations are fairly separate from one another, the lizards have evolved different food preferences.

An animal cell (left) and a plant cell (right) are shown. Which organelle labeled x in the diagram is found in both plant and animal cells

Where is the name of the process by which coal is taken from earth after the layer of ground on top of it is removed? A) Underground mining B) Coal rig mining C) Strip mining D) Water-blast mining