Algae live inside the body cells of a species of hydra. The hydra uses the products of the alga's
photosynthesis. Ammonia resulting from the hydra's
metabolism is thought to contribute to the algae's
nutrition.
The relationship between the hydra and the alga is
best described as
1) commensalism
3) saprophytism
2) mutualism
4) parasitism

golgi body just took the test on edge

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.

the answer

b.) bowling ball