Amylase catalyzes the breakdown of carbohydrates and is present in saliva. Pepsin is an enzyme that breaks

down proteins in the stomach. When amylase reaches the stomach it no longer functions. Why?

Explain how reactions involving carbon-containing compounds can contribute to the greenhouse effect.

How did one ancestral population give rise to many species, each with different adaptations?

Where are meanders likely to be found? A. on flooding planes B. on alluvial fans C. in playas D. in mountains

Which scientist confirmed that all cells must come from pre-existing cells?

Which of these is the most likely reason why the auroras Are sometimes seen at northern Ohio although it is at a much lower latitude than the North Pole? A. The solar winds change their direction constantly B.

The organisms that breakdown organic wastes and remains of the dead into simpler substances that can be used by other organisms are known as

Technology can have good and bad affects. what is a bad effect spraying pesticides on crops with the use of airplanes?

Which statement below is false regarding ocean crust and continental crust? A: Ocean crust is more dense B: Continental crust is composed of only igneous rocks C: Ocean crust is younger D: Continental crust is older

Deer need food and water to survive. What are food and water for the deer population? carrying capacity limiting factors population growth scarce resources

Organisms in this kingdom are single celled and prokaryotic