Which of the following cell structures is found in plant cells but not in animal cells? A. ribosome
B. chloroplast
C. cytoplasm

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

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 is the ecological role of food chains and food webs