A researcher is studying three aquatic ecosystems in South Carolina. The fish species found in each ecosystem are shown below. The researcher determines that all three ecosystems contain roughly the same total number of fish. Which ecosystem would be most stable during the outbreak of a disease that affects fish?

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.

b is the best answer for this question.

a chair, a bed, and a toothbrush

explanation:

i was told this before by a teacher, so yeah