Which organisms are the producers of the biological community shown in the image below. * shark tuna inackerel small fish mer zooplankton phytoplankton Your answer

Which of the following is not a defining characteristic of plants?

Select the correct answer. which mutation is harmful to the organism? a. a mutation allowing moths to camouflage better on blackened tree bark b. a mutation making staphylococcus aureus resistant to the antibiotic methicillin c. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell d. a mutation causing uncontrolled cell division e. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them

What substance acts to prevent sudden ph changes in bodily fluids?