What can regulate the functioning of a gene? Choose the best answer.

external environment

internal environment

homeostasis

internal and external environment

When does a girl normally go through puberty? living environment

Organisms that can not create their own food, but must get it by consuming other organisms, are known as

Where is most of earths carbon located

True or false, each island in Hawaii has its own unique type of birds?

How do humans depend on plants and animals?

Earth's magnetic field: a. changes over time b. remains unchanged c. does not affect solar winds d. is not affected by solar winds

Which statement is true about scientific theories and laws? A. A theory can never become a law B. If enough evidence is found for theory, it will become a law C. Theories have more proof than laws D.

Blood typing: who can donors donate to and who can receivers receive from? Know the Rh factor and how it relates to Rh antibodies.

Why is it important yo wash hands after an experiment

What is the driest biome on earth