Which of the following is a correctly balanced equation? A. 2Cu + O2 - - > 2CuO B. Mg + O2 - - > MgO2 C. 3kCl + HNO3 - - > 3HCl + KNO3 D. CaCO3 - - > CaO + CO3

The process of exhalation in goats

What genus are humans in? A. Homo B. Sapiens C. Erectus D. Sula

Which statement is true about the spleen? a. It filters the lymph much the same way the lymph nodes filter the blood. b. It harbors eosinophils waiting for parasites to attack the body. c.

If an organism that is homozygous recessive for a trait is crossed with a heterozygote, what is the chance of getting a homozygous recessive phenotype in the first generation? A. 0 B. 0.25 C. 0.5 D. 1

What does quaintance mean

How do plants obtain carbon atoms?. A. from carbon in the soil. B. from microorganisms that live in soil. C. from carbon dioxide in the atmosphere. D. from animals that feed on the plants

What kind of change occurs when ice becomes liquid water? O melting reaction O chemical change O physical change and sses of O substance change ergy, and sses of cules

Which of these provides evidence from developmental biology of a shared evolutionary history? A. The skeletal structures of a leg of a horse and a flipper of a whale are very similar. B.

Which gas supplies the energy for storms

Photosynthesis is an example of an exothermic reaction. an endothermic reaction. a reaction that gives off heat. a reaction that emits energy.