The chart shows the percentage of different elements in the human body. Which element is the most prevalent in the human body?

(A) nitrogen

(B) hydrogen

(C) carbon

(D) oxygen

You have been advised to check your pulse during exercise in order to monitor your heart rate. what is happening in your heart as your pulse is produced?

Sedimentary rocks form when

Which of the following are specialized cells? blood cells muscle cells bone cells all of the above

What is the term referring to the type of reaction occuring when complex molecules are formed from simpler molecules and water is removed

Which describes the organisms that live in the deep zone?

How does a virus cause disease?

Excretion of wastes is important to maintaining homeostasis. which three are involved in the excretion of wastes in humans? A. Urinary, skeletal, reproductive B. Circulatory, integumentary, Muscular C. Digestive, respiratory, urinary d.

How can we predict which elements are stable under natural conditions and which elements tend to undergo chemical reactions

Homologous sequences: A. are expected to have very similar sequences in related organisms B. are expected to have similar sequences in related proteins but from unrelated or distantly related organisms C.

What is the result of meiosis I and are the chromosomes replicated or unreplicated?