Metabolic pathways a. control the flow of energy. b. control enzyme activity. c. can be linear or branched out. d. all the above.

Which of the following is an example of a tissue on the digestive system a.the stomach b.smooth muscle that lines the stomach c.nerve cells in the stomach d. enzyme molecules in the stomach

Which type of organism is missing from the food web seen in the illustration? primary consumers decomposers primary producers secondary consumers

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?