Answer:
E. bind to troponin which moves the tropomyosin
Explanation:
calcium ions bind to troponin, causing conformational changes in troponin that allow tropomyosin to move away from the myosin binding sites on actin. Once the tropomyosin is removed, a cross-bridge can form between actin and myosin, triggering contraction
Answer:
The tundra ecosystem is one of the coldest ecosystem on the earth, which has few trees, high winds, much snow, and low rainfall. Some of the species found in that environment are arctic foxes, caribou, and polar bears.
Explanation:
Hoped it helped ya!
What is the best desciption of the camouflage by natural selection?
Sunlight
solar energy
water
Answer:
Here's what i think.
Explanation:
Tides can be extremely dangerous, in some places, high tide will flood caves which people otherwise wouldn't notice as flood-able. Knowing the tides can save lives of Spelunkers (people who explore caves). Another example is sailing. The tides can be important because tide can determine if your boat will be smashed against rocks, or if it is safe to dock!
