Phosphate, deoxyribose, and four nitrogenous bases- adenine, guanine, cytosine, and thymine! The “bars on the ladder” are the four nitrogenous bases. Adenine and thymine pair together always, and guanine and cytosine! Deoxyribose and phosphate makes up “the sides of the ladder”. Hope this helps!
Answer:
function of lymphatic system is to maintain fluid balance
Explanation:
soil organisms which range in size from microscopic cells that digest decaying organic material to small mammals that live primarily on other soil organisms play an important role in maintaining fertility structure drainage and aeration of soil
The pyloric valve control food movement from the stomach into the small intestine.
One group of reptiles, characterized by the fossil Archaeopteryx, led to the evolution of birds. The correct answer is birds