Tropical rain forest
Tropical dry forest
Tropical dry forest / savannah
Desert
Temperate grassland
Temperate woodland
Temperate deciduous forest
Northwest coniferous forest
Boreal forest
Tundra
In the Arthropods experiment the control is not needed since c. the treatments can then be compared to each one rather than that of a control. Hope this is the right answer and would be of big help to your assignment.
Here's a tip something I would do. I would first start off by writing my essay in order from the things they tell me to do. For example,the first thing they want you to do is know where volcanoes are located write about that first then do what they ask second.See that is a simple trick that I use.
Answer:
Color of light/Type of light
Explanation:
B/c by definition of independent variables, these are the variables that are manipulated to see how it affects the other value (which is aka dependent variable). Color of light is independent because you have multiple manipulation which can be clearly seen in the different types of lights and the height is dependent on what color of light it is exposed to.
Additionally,
Dependent variable - the height of the plant
An independent variable is not affected during the experiment. It is what experimenter controls. The dependent variable is called dependent because it depends on the independent variables. Here, the height of the plant depends on the color of the light, therefore the height of the plant is dependent variable and the color of the light is the independent variable.