A banana turning brown when exposed to the air is an example of?

A. a heterogeneous mixture

B. vaporization

C. a chemical change

D. an amorphous solid

Which of the following is a biotic factor in the prairie ecosystem? a. water b. sunlight c. soil d. grass

Enzymes are ___? A. fats b. acids c. Sugars d. proteins

What are three reasons for using genetically engineered organisms that make sense for a commercial farmer?

Some organelles found in modern eukaryotic cells may be the result of a symbiotic relationship between ancient prokaryotes. Which organelles may have once been prokaryotes? a. mitochondria and endoplasmic reticulum c. mitochondria and ribosomes b.

The red shperes represent oxygen atoms and the blue spheres represent hydrogen atoms. Is this substance?

Which genre represented a break away from conformity and mocked modern civilization

During the course of an action potential, the membrane potential rapidly rises and reaches a peak of about 40 mV before falling to about - 75 mV. What causes the fall in membrane potential

What is the relationship between the movement of the atmosphere and the movement of surface currents?

In what sphere of the earth is eutrophication a problem?

Kingdom that contains peptidoglycan in their cell walls?