What is the approximate range of frequencies that humans can hear?

20to 20,000hz

0to 20hz

0 to2hz

0to 2,000hz

Explain how temperature and precipitation are affected by latitude and the sun's rays.

What might explain the real-world results, show in the graph to the right, for one class of twenty students? Check all that apply. Fourteen people were immune at the beginning Noninfected individuals never came into contact with infected individuals.

A population of black cat has been interbreeding however in one litter a sole gray kitten is born the successive generations now have a few gray cat witch mutualism is responsible for introducing its new allele and the cat population

The spines of desert plants

Dichtotomous keys and branching diagrams organize different types of information about classification. how are these tools used differently

The same reptile known as a river turtle in illinois is called a cooter in florida. This language phenomenon is classified as

In rats, gene B produces black coat color if the genotype is B-, but black pigment is not produced if the genotype is bb.

Gregory is studying Lake Mairead. The lake has clear water and supports a healthy community of algae, fishes, and other aquatic organisms. Gregory hypothesizes that phosphorus is a limiting nutrient in the lake.

the distance between the Earth and the Sun is quite large. Which numbers are correct distances between them? Check all that apply.

Does nonpolar mean hydrophobic or hydrophilic