What are limiting factors and their importance?

Has anyone taken the genetics unit test in connexus? not looking for answers, just a little bit what to expect and some with studying.

How many copies of genes do gametes have?

Read the prompt and study the diagram above. what cause and effect prediction can be used to test the assumptions in the model? a) limiting water will limit sugar production of the plant b) limiting sunlight will limit sugar production of the plant c) limiting carbon dioxide will limit sugar production of the plant d) limiting sunlight, water, or carbon dioxide will limit sugar production of the plant