Resources a squirrel might need

Which of the following best describes diffusion? * A) movement of water molecules across a selectively permeable membrane B) Movement of molecules from an area of higher concentration to lower concentration C) Movement of materials across a cell

Four parts of a flowering plants and it's function

Pepsin is an antibacterial agent that kills some bacteria. Protease breaks down lipids into fatty acids and glycerol. Lipase breaks down proteins in the small intestine. Mucus protects the stomach lining from digestive secretions. a) trueb) false

If water vapor continues to increase in our atmosphere, what changes would you expect in fresh water lakes? A: lake temperatures will decrease, but dissolved oxygen in water will increase. B: lake temps will decrease along with dissolved oxygen.

Which of these has NOT provided evidence showing that the continents have drifted over time? O A) rocks OB) fossils OC) earthquakes OD) geologic structures

All living organisms are composed of O A. only one cell. OB. at least three cells. OC. one or more cells. OD. at least 100 cells.

The membrane lining the interior of the abdominal cavity is called the 1 visceral pleura 2 visceral peritoneum 3 parietal pleura 4 parietal peritoneum

A mutation in a bacterial gene which codes for the enzyme which cross-links peptidoglycan with the result that the altered enzyme continues to cross-link the peptidoglycan but no longer recognizes penicillin. True/False

Which organelle packages and distributes proteins that are received from the endoplasmic reticulum? A. vacuole B. cytoplasm C. Golgi apparatus D. ribosome

In southern Arizona, in the Chiricahue Mountains, there are species of toads that live aciya the top of individual mountains.