The first line of defense involves which structure(s)?

a
blood
b
B-cells
c
T-cells
d
skin

Explain the side effects of cancer treatments

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

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.