THE ACTIN has the active site to which the heads of the thick filament will bind.
The muscle is made up of two major protein fibers, which are the actin and the myosin. Muscle contractions occur when myosin and actin slide over each other in a series of repetitive events. The protein actin has a thin structure and is abundant in eukaryotic cells while myosin is a thick filament.
Answer:
Its B
Explanation:
I took the quiz and choose A, but It was wrong, and the correct answer was B... You're welcome :D
i think answer is D animal in the rain forest
Latitude is the measurement of the distance of a location on the Earth from the equator. The further away from the equator that you are the less sunlight that this location receives. ... At the Equator, the Sun's rays strike the Earth at a right angle, which makes the heat more intense and concentrated over a small area.