Why are lungs divided into very small sac like structures

What is the key characteristic of an oxidation-reduction reaction?

Which atoms are the most reactive? A. Atoms with a full outermost shell B. Atoms that have one or two electrons to gain or lose C. Elements that are inert D. The noble gases

During the process of cellular respiration, energy is realeased from what

32. What is the complementary DNA sequence for the following segment of DNA? CTG GAA CTA

Compared to absolute dating, what is an advantage of relative dating? A.) Fossils must be in undisturbed rock layers to determine age. B.) Age, in years, cannot be determined for an individual fossil. C.

Pollution stays in the area where it is produced. a. True b. False

A male tree frog migrates to a new habitat with little ground vegetation and many tall trees. Jumping is the safest way for the frog to move from tree to tree.

Select the correct answer. Neurofibromatosis, a genetic disease caused by mutation on the NF1 gene, follows an autosomal dominant pattern of inheritance.

Which of the following is NOT a way a cell can increase its surface area A. decrease its volume B. add organelles C. let water out of the cell D. all of the above

Using a pH meter, you find that egg whites have a pH of nearly 8 and egg yolks have a pH near 6, if litmus paper turns blue in bases and red in acids, which part of eggs would turn litmus paper blue? A. both B. egg whites C. egg yolks D. neither