Agene editing technology called crispr-cas9 uses cellular machinery to change the cell's genetic material. how might this technology be useful in treating diseases like cancer? a. crispr-cas9 could act as an antioxidant in a person's cells, removing toxins that might otherwise damage dna. b. crispr-cas9 could remove from patients the genetic mutations that cause a specific cancer before the cancer begins. c. crispr-cas9 could remove any dna damage caused by smoking. d. crispr-cas9 could be a substitute for chemotherapy

Vegetation that grows along the floors of tropical and temperate forests is called undergrowth. how is the undergrowth of a tropical rain forest most likely to differ from the undergrowth of a temperate forest? a. a tropical rain forest's undergrowth most likely experiences periods of dormancy during colder weather. b. a tropical rain forest's undergrowth most likely experiences periods of dormancy during rainy weather. c. the undergrowth of a tropical rain forest most likely requires less sunlight. d. the undergrowth of a tropical rain forest most likely requires more sunlight.

Many animals cannot sweat to maintain a stable body temperature. what is one other way animals can cool down?

Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the