What is limiting the rate of photosynthesis at point A?

please help me out

Plz plz plz quick! 49 points for whoever which of the following statements about greenhouse effect is true? *life on earth is suffering because of greenhouse effect *the greenhouse effect is caused by human activity *all greenhouse gases are harmful *life on earth would not exist without the greenhouse effect

Sweating and breathing is an example of differentiation specialization maintaining homeostasis metabolism

Body systems are not completely independent they integrate and work together describe one example of the integration between body systems