Answer:
Microtubules composed of tubulin protein.
Explanation:
The cytoskeleton is composed of three well defined filamentous structures: microtubules, microfilaments, and intermediate filaments. Each of these filamentous structures is a polymer of proteinic subunits united by weak, not covalent connections.
Microtubules are long hollo cylindric tubes with no ramifications of a diametre near to 25 nanometers. They are constituted by two subunits of tubulin protein which polymerize to form microtubules. These filaments shape the cell and are involved in intracellular transport. Microtubules extend from an organizing center near the nucleus to the cellular surface.
When an object<span> is speeding up, the </span>acceleration<span> is in the same direction as the velocity. Thus, this </span>object has<span> a positive </span>acceleration<span>. In Example , the </span>object<span> is moving in the </span>negative<span> direction ( </span>has<span> a </span>negative<span> velocity) and is slowing down.</span>
Answer:
True!
Explanation:
Sometimes an entire ocean closes as tectonic plates converge, causing blocks of thick continental crust to collide. A collision mountain range forms as the crust is compressed, crumpled, and thickened even more. The effect is like a swimmer putting a beach ball under his or her belly—the swimmer will rise up considerably out of the water. A convergent boundary (also known as a destructive boundary) is an area on Earth where two or more lithospheric plates collide. One plate eventually slides beneath the other, a process known as subduction.
The answer is One solution is to limit the scope of the study. Another possibility
is do several smaller studies over a longer period of time.
Energy and carbon dioxide and water
