He graph below shows how air pressure changes with altitude in the Earth's atmosphere. Examine the graph, and then answer the question that follows. In the troposphere,

According to the tide table below what time of day will the highest tide occur?

What will most likely happen in the absence of a cell membrane? a) photosynthesis will not take place. b) the cell will not store food, water, nutrients, and waste. c) energy will not be released during cellular respiration. d) substances will pass in and out of the cell in an uncontrolled manner.

One similarity and one difference between an element and a mixture of elements