(Q).
Answer the following question given this paragraph: An isotonic solution is a solution in which the amount of dissolved material is equal both inside and outside of the cell. Water still flows in both directions, but an equal amount enters and leaves the cell. Q: In which solution is the amount of dissolved material equal both inside and outside of the cell? Choices: - supersaturated - exothermic - hypotonic - isotonic A:
(A).
isotonic

(Q).
Answer the following question given this paragraph: Partly movable joints allow only very limited movement. Bones at these joints are held in place by cartilage. The ribs and sternum are connected by partly movable joints. Q: What are the bones in partly movable joints held in place by? Choices: - socket - tendons - collagen - cartilage A:
(A).
cartilage

(Q).
Answer the following question given this paragraph: Recall that our DNA is wound into chromosomes . Each of our chromosomes contains a long chain of DNA that encodes hundreds, if not thousands, of genes. Each of these genes can have slightly different versions from individual to individual. These variants of genes are called alleles . Each parent only donates one allele for each gene to an offspring. Q: What are variants of genes called? Choices: - antigens - mutations - allergens - alleles A:
(A).
alleles