Suppose you are visiting the equator. It is noon. The Sun is at its highest point in the sky for the day, which is directly over your head. You call a friend on the phone, and
she says it is also noon where she is but the Sun is not directly overhead at that
location and time. It is a little lower in the sky for her. Compare the longitude and
latitude where you are with the longitude and latitude where your friend is. Are they
alike or different? How do you know?

Qué sucede cuando una persona tiene muy poco o demasiado costeroides?

Which of the following statements is a scientific claim? a. the early solar system had large amounts of water; so, the oldest objects in the solar system should also be abundant in water. b. earth is shaped like a sphere even if not all of the scientific observations related to its shape support this idea. c. the mass of the universe is much greater than current models predict; it is not possible to explain this inconsistency. d. planet earth is abundant in water, but there is no way to scientifically determine from where earth's water originated.

This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.