Which best describes the relationship between the Sun’s energy and Earth’s surface? 1. The northern hemisphere receives the most energy.

2. The southern hemisphere receives the most energy.

3. The poles receive the most energy.

4. The equator receives the most energy.

For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a.control b.hypothesis c.procedure d.system

Are the earth's ocean floor and continents the same age geologically? why or why not?

What is the difference between sex-linked traits and autosomal traits in humans? a. sex-linked traits can only be passed from fathers to sons, while autosomal traits can be passed on from both parents to offspring of any sex. b. sex-linked traits are passed on through the x and y chromosomes, while autosomal traits are passed on through the other 22 chromosomes. c. sex-linked traits only affect females, while autosomal traits affect both males and females. d. sex-linked traits refer to genes that are on the x and y chromosomes, while autosomal traits refer to genes on all 23 chromosomes.