On topographic maps, contour lines that are close together indicate A. steep slopes

B. gentle slopes

C. river valleys

D. flat land

Glucose is broken down in different ways, both in the presence and in the absence of oxygen. using the table for reference, what major products are formed in each reaction set?

What are the fixed alleles in the human species? o a. the alleles that are on the most chromosomes b. the alleles that change most often 000 c. the alleles that no one has d. the alleles that everyone has

What happens when two nitrogen atoms share electrons