Question

an animal sanctuary houses a variety of animals. to understand the workload of the sanctuarys veterinarians, the director looked at which types of animals are treated or not treated by various doctors. the venn diagram shows this information for three of the doctors.
(a) select all the doctors who treat otters.
□ dr. garcia □ dr. gonzalez □ dr. washington
(b) how many types of animals are treated only by dr. garcia?

(c) which types of animals are treated only by one of the three doctors (dr. garcia, dr. gonzalez, or dr. washington)? choose all that apply.
□ birds □ cats □ dogs □ elks □ frogs
□ horses □ iguanas □ koalas □ mice □ otters
□ pigs □ rabbits □ snakes □ turtles □ zebras

Explanation:

Step1: Identify otter-treating doctors

Otters lie in the intersection of all three circles, so all three doctors treat otters.

Step2: Count Garcia-only animals

Dr. Garcia's exclusive circle has Elks and Mice: $1+1=2$.

Step3: Pick single-doctor animals

Select animals in only one circle: Elks, Mice (Garcia); Cats, Pigs, Turtles (Gonzalez); Horses, Koalas (Washington) plus outside (Zebras, Rabbits, Iguanas, Snakes) → correct list as above.

Answer:

(a) Dr. Garcia, Dr. Gonzalez, Dr. Washington
(b) 2
(c) Cats, Elks, Horses, Mice, Pigs, Turtles, Zebras, Rabbits, Iguanas, Snakes