Which observation was a sign that a chemical reaction was occurring in this experiment

A) formation of a solid

B) change in color

C) formation of gas bubbles

D) production of light

The diaphragm links the respiratory to the muscular system by

How was the Clean Air Act of 1970 different from previous legislation aimed at reducing pollution? A. It put regulation in the hands of the federal government. B. It was the first law struck down by the EPA. C.

Why do frogs retract their eyes

Which of the following organisms are photosynthetic autotrophs? Select all that apply. A. algae B. plants C. all bacteria D. some bacteria E. arthropods F. protists

If you are familiar with balancing equations, balance the cellular respiration equation

Several genes interact, along with the environment, to determine a person's height. which inheritance pattern best explains how genes influence human height? A. multiple alleles for each gene B. homozygous recessive alleles C.

A male and female bison that are both heterozygous for normal skin pigmentation (Aa) produce and albino offspring (aa). which of Mendel principles explains why the offspring is albino. 1. dominance only 2. independent assortment only 3.

How is nucleotide biosynthesis regulated? How is the enzyme ATCase regulated?

A clothes dryer uses about 38 amps of current from a 240 volt line. How much power does it use? watts

Which of the following could cause a habitat change? a. introduction of an invasive species b. a wildfire c. a mudslide d. all of the above