Pre-Test

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DNA is made of two chains of nucleotides. Which type of bonds hold the chains together?

hydrogen bonds

covalent bonds

ionic bonds

polar covalent bonds

Which best describes disagreement between scientist

How do you describe the smelting of iron ore?

In fungal sexual reproduction, a.) plasmogamy occurs before karyogamy. b.) karyogamy begins after fertilization. c.) karyogamy creates diploid spores. d.) zygotes are haploid. e.) spores are hapliod f.) plasmogamy produces heterokaryotic cells.

The tilt of the Earth on its axis causes places near the A. poles to receive more direct sunlight B. equator to receive more direct sunlight C. poles to have a warm climate D. equator to have a cold climate

Individuals who score high on scales of emotional intelligence tend to have trouble in social situations.

He removal of abnormal glandular tissue is known as

Is a cat a mammal or reptile?

What is the gradual sequential regrowth of a community of species after a forest fire?

Why are bacteria needed in the nitrogen cycle? A) Other living things cannot use atmospheric nitrogen. B) Other living things cannot use the nitrogen in plants. C) Bacteria are the main nitrogen reservoir.

Ant lions are small insects that dig funnel-shaped depressions in sandy areas. They hide in the dirt at the bottom of the funnel.