What is one possible explanation for the increased amount of carbon dioxide in the atmosphere?

A male cardinal's red color is an example of a trait affected by natural selection. The females of the species choose mates based on the vibrant colors of the males' feathers.

How does plate tectonics explain the combination of low-temperature but high-pressure minerals found in a blueschist?

Archaea are different from Bacteria in that Archaea A. have structures and molecules that are more similar to eukaryotes than bacteria. B. have structures that are more similar to bacterial structures. C.

What type of neuron contacts a muscle fiber and initiates a muscle contraction?

The danger that the Great Barrier Reef now faces is an effect. What is one cause of the danger it faces?

What two factor will make a star bright?

What are the standard units of specific gravity? a) g/cm^3 b) kg/L c) kg/cm^3 d) none

Explain why the number of tuskless elephant in Uganda may be increasing.

A person who has a disorder caused by a recessive allele is a. considered a carrier of the disorder. b. homozygous for the recessive allele. c. unable to pass the allele to offspring. d. certain to have offspring with the disorder.

After strenuous exercise sore muscles can occur because of? A. A stretching of the muscle tissue B. Too much oxygen in the blood C. A buildup of lactic acid in the tissues D. Too much glucose in the blood