How many species do scientist think are on earth

Which of the following statements is true for both prokaryotic and eukaryotic cells? Choose 1 answer: Mitochondria produce ATP through cellular respiration. The rough endoplasmic reticulum synthesizes lipids and modifies proteins.

Decribe the 3 major types of biomes

Explain why living things store energy in lipids instead of in carbohydrate?

Why is the Transfer of energy and matter in a food chain only about10 percent efficient?

The sun is the unlimite sorcuse of engery true or false

Which has characteristics similar to a scientific model? A. the Brooklyn Bridge B. a deep-sea submersible C. a toy train D. a planetary rover

Which cause contributed to both world war 1 and world war 2 (A) Competition For Increased Economic Power (B) Some Nations' Desire To Expand Territory (C) The Belief In A Superior Race (D) A Mission To Spread The Catholic Faith

Ali was conditioned to blink using an air puff and a tone. the experimenter then presented only the tone until the blink response disappeared. what is ali displaying?

How does the reproduction rate of bacteria affect the illmness that is cuased by it?

Kristyn is thrilled to hear she is expecting twins. her doctor informs her that the twins are dizygotic. what does this mean?