Who used a compound microscope to see chambers within cork and named them “cells”? choose one answer. a. rudolf virchow b. robert hooke c. matthias schleiden d. anton van leeuwenhoek

Which of the following statements is true? a. there are more chromosomes in an organism than there are genes. b. there are more genes in an organism that there are chemical bases. c. dna is made of sugar, phosphate, and carbon. d. genes are found in specific locations on a chromosome.

Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d

Can yall plz me on this question im having a hard time think about it