Which of the following best represents an isolated system?

A. Outer space

B. The moon

c. The ocean

D. The atmosphere

John is 60 years old and has been experiencing numbness in his hands for the past 3 months. his doctor suspects that john is not producing enough hydrochloric acid and intrinsic factor and encourages him to eat more foods containing vitamin b12.

300 million years ago, Wisconsin was once covered with rock, while West Virginia was covered with swamps. Why do you think West Virginia today produces a lot of gas and oil, while Wisconsin does not?

How does the speed of a dropped object in free fall near the surface of the earth relate to the time it has fallen?

Why is dna Replication important to cells

Which assisted reproductive technology involves the maturation and fertilization of the egg within laboratory glassware, followed by transfer of the embryo to the uterus 2-4 days later?

What are some of the effects of the enhanced greenhouse effect?

Which statement correctly describes an interaction of the respiratory and circulatory systems? A. Breathing speeds up when heart rate slows down. B. Breathing and heart rate slow down during exercise. C.

How man cells do spermatogenesi produce from one original cell

Which spheres would feel volcanic eruptions and earthquakes?

Which is visible evidence of energy passing through water? a sea arch a density tide a wave the Coriolis effect