Which statement/s show/s the importance of the processes of photosynthesis in our ecosystem? I. It is the number one source of oxygen and carbon dioxide in the atmosphere.
II. It contributes to the carbon cycle between the earth, the oceans, plants, and animals.
III. It contributes to the symbiotic relationship between plants, humans, and animals.
IV. It allows all living cells to extract energy in the form of ATP from food and offer that energy for the vital processes of life.

Select one:

a. I and II
b. I and IV
c. II and III
d. III and IV

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.