The scientist has a water sample from an unknown location in the lake. when bromothymol blue is added, the sample becomes blue. from where did the sample most likely come?

Aristotle classified animals according to their a. habitat and mating behavior c. mating behavior and relatedness b. habitat and physical differences d. physical differences and mating behavior

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?

What part of the cell does 9 represent? a. cytoplasm b. lysosome c. ribosome d. centrosome