A student performed an investigation on green single-celled organisms called Euglena. Two samples of Euglena were
placed in two different containers of water taken from the same
source. One sample was kept in a dark area. The other sample
was kept in a lighted area. The student recorded the
observations in the table shown. Which of the following
observations represents a response to stimuli?
Select one:
Uses a flagellum to move
Moves toward light
Some divide into two small organisms
Various sizes

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.

sorry, is there a picture? i do not see any arrows.

wut? unius0123 wut?

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.