List six food subtances

Succession Interactive! Which of the following are true? Secondary succession occurs in an area that already had life and soil. Primary succession begins in an area that does not have soil.

Drugs are substances that cause a change in a person's physical, not mental, state. T F

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two things that can cause cancer include 1) death and miscopying 2) exact copy of heathly DNA and damaging effect of radiation 3) mutations and death 4) miscopying and damaging effects of radiation

Does human breathe in nitrogen

What organelle moves proteins and other substances through the cell

Different between animal cells and plant cells?

The statement force equals mass times acceleration is newton's second law of motion why is this a law than a theory?

What are fluid dynamics

The nurse is preparing to apply nitroglycerin paste. after checking the order, washing hands, checking the client's identity, and applying gloves, which is the next nursing action?