In researching the structure of DNA, Erwin Chargaff found the amount of adenine always equaled the amount of which other base?

A. thymine

B. cytosine

C. adenine

D. uracil

Osteocytes are bone cells. Collagen fibers and calcium salts are found in abundance between and among the osteocytes. The collagen and calcium salts are a) components of the plasma membrane of osteocytes.

Oxygen-carbon dioxide exchange, place the statements in correct order

How much weight can you lose fasting for 24 hours?

What is the single most important characteristic in determining the course of a star's evolution?

What is the site of photosynthesis

What area in the brain sets the respiratory rhythm?

Which is an example of the bottleneck effect? A) Green beetles move to a new location and build a new colony there. B) Green beetles survive as birds don't see them, whereas brown beetles get detected.

Why the average yearly temperature at the north pole is - 18c while the average yearly temperature at the equator is 27c?

The separation of a group of individuals from the rest of the population is referred to as

The following are features of mitosis or meiosis. can you put them in groups. im so confused : allows for transmission of chromosomes to offspring, necessary for growth and regeneration, allows for regeneration of an organism, two identical diploid