Hi I need some help please Questions :

1. Calculate the rate of temperature change from. Time 4 to time 8.

2. Which variable in the graph is independent

3. Which variable in the graph is dependent?

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