Photosynthesis ...

Frogs breathe through their ________ under water.

Carbohydrate synthesis doesn't require

Our body need oxygen in order 

The product of anaerobic respiration in muscles is

Which of the following factor indirectly affects the rate of the photosynthesis?

During exercise, the heart rate increases to

Anaerobic respiration of yeasts gives 

For the process of photosynthesis, all except one of the following items are essential. Point out the exceptions.

Breathing is a physical process which involves the movement of:

What organisms are capable of photosynthesis?

Plants require water and minerals due to

Exchange of gases in insects occur in tubes called

Which of the following is the respiratory organ present in fishes?

Photosynthesis converts light energy into

The equation for aerobic respiration in humans?