What animal tells us when spring is here?

Growth of bacteria in food products causes a need to "time-date" some products (like milk) so that shoppers will buy the product and consume it before the number of bacteria grows too large and the product goes bad.

How does the muscular system produce body heat?

How is the structure, function and position of the crayfish nerve cord different from the rat's spinal cord?

The graph shows global iron ore distribution in 2014. Which statement is a scientifically sound conclusion to draw from this data?

Are the nodes of Ranvier spaced equally along the axon? Why is this significant?

How many variables should you have in a control experiment?

How is science different from other subjects such as art or history

What happens if you don't have enough carbohydrates?

Describe the movement of "air" into and out of the respiratory system. Be sure to include the following structures (larynx, trachea, bronchi, bronchioles, and alveoli) while being specific about whether it is mainly oxygen or carbon dioxide moving

How are diffusion and osmosis different? A. Osmosis is the movement of proteins. Diffusion is the movement of water. B. Osmosis is the movement of water. Diffusion is the movement of chemicals and molecules. C.