How does an ectotherm regulate their body temperature? a. by using heat from the surrounding environment. b. by the processes that are involved in the flow of nitrogen through the environment. c. by producing heat within its own tissues.

The health, management and conservation of biodiversity, is a challenge facing ecosystems worldwide. the major factors that affect the health and function of the great barrier reef are climate change and pollution. which question investigates the effects of a biotic factor on the reef ecosystem?

Students commonly confuse saccharomyces cerevisiae and staphylococcus aureus when viewed on a microscope slide how could you microscopically differentiate

12) several teeth were found in an area of flat land covered with trees and plants. the teeth were examined by a paleontologist, and it was determined that the teeth came from a shark. they found many other shark teeth in this area. however, the people who discovered the teeth were puzzled, because there was no source of water near where the fossils were found. what is the paleontologist's best explanation for why the teeth were found in this area? a) sharks used to live on flat land. b) this area was once covered with salt water. c) this area was once covered with freshwater. d) someone buried the shark teeth deep in the ground.