Alena realise that students in her cape biology class have variation in their heights, shoes size, ability to roll their tongues and that some students have attached earlobes while others have detached earlobes. Plan and design an experiment to assess the observation

well we can't tell you because we cant see the time give a screen shot or something.

c should be the answer

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.