<span>The correct answer is A. Carbon. That's why things like breads and other whole grain foods, including all types of pasta, are called carbohydrates. They are a great source of quick energy but one should not eat a lot of them because they can make you obese if you're not careful. Chocolate and other sweets are also great sources of carbohydrates. </span>
Answer:
Primary productivity in an ecosystem is important because it lays the foundation of the food chains and food webs being observed in an ecosystem. It is the initial and main source through which energy is added into the food chains and food webs in an ecosystem. The organisms in which primary productivity occurs bring energy for the different organisms living in an ecosystem. Without them, energy will not be able to flow through an ecosystem as there will be no energy produced.
Answer:
The correct answer is - different colors of light.
Explanation:
The independent variable is a variable or factor which is changed in a study or research to find what will be the change occur to the dependent variable. The manipulated factors or variables directly affect the dependent variable and help in concluding the result.
In this case, the variable that is affected is the growth of the plant while the variable that is manipulated or change is the color of the light so the independent variable would be different colors of light.
I would say its between A and D, Hope it helps.
