Which type of food is most beneficial to your health according to the dietary guidelines for americans?

Which can best describe the fossil record

What is the characteristic of a cell

True or False: there are phenology changes occurring earlier in the spring than 50 years ago? A. True B. False

Hereditary monarchies, whereby the crown passes down through a single family, are examples of:

A chemical is spilled in a grassy area. the chemical has been known to kill all bacteria that live in the soil. how will this most likely affect the area?

How are all living thing made of cells

Which is am example of an internal stimulus? A) an increase in the amount of water available to a plant B) an artificial light attracts insects C) a decrease in oxygen levels in the blood during exercise D) a sudden change of air temperature

How dose one determine when an ecosystem is in balance

How does respiratory system relate to respiration making ATP?

What is the largest group of reptiles that ever lived?