Looking at the image of the freshwater lake ecosystem in the reading, can you name biotic and abiotic factors in this specific ecosystem? What changes in this ecosystem would impact the biotic factors?

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis

What happens during the experiment stage of the scientific method

Which of the following is not a type of epithelial cell