2. A cell detects that it had depleted its stores of Ca2+ Which of the following would not help the cell regain homeostasis?
(A) O Increasing the number of chloride ion channels on the cell membrane
(B) O Releasing a hormone that prompts the breakdown of bone to release calcium
(CO Signaling the intestine to absorb more calcium from food
(D) O Decreasing processes which require calcium
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How do the 2 types of endoplasmic reticulum differ?

Which table best shows the impacts resulting from human activity? impact of human activities human activity impact forest area cleared to construct an airport increase in oxygen level vegetation cleared to construct an oil mine increase in pollution impact of human activities human activity impact forest area cleared to construct an airport increase in sound pollution vegetation cleared to construct a power plant contamination of water impact of human activities human activity impact beehives cleared from urban areas increase in vegetation dams constructed on a river increase in fish population impact of human activities human activity impact beehives cleared from urban areas increase in bird population dams constructed on a river better quality of water

Match each symbol with its description.