Chromosomes are best know as units of an organism’s-
1. dietary intake
2. genetic make- up
3. local habitat
4. survival instincts

2. genetic make- up

Explanation:

Chromosomes are DNA passed down from the parents

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.