Answer:
The Schwarzschild radius (sometimes historically referred to as the gravitational radius) is a physical parameter that shows up in the Schwarzschild solution to Einstein's field equations, corresponding to the radius defining the event horizon of a Schwarzschild black hole
Explanation:
The Schwarzschild radius define the “size” of a black hole. Theorists believe that all the “stuff” inside a black hole collapses into a singularity, an infinitely small and infinitely dense point well inside the boundary defined by the Schwarzschild radius.
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C............................
Answer:
Protein phosphorylation is a common way to regulate signaling pathways in the cell cycle. Kinases catalyze phosphoryl transfer from ATP to substrates and change downstream protein-protein interaction in such way that a signaling pathway is either switched on or shut off.
Explanation:
C: capillaries are the smallest blood vessels that allow exchange of gases and nutrients.
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C. Enzymes increase the rate of the chemical reactions carried out during metabolism.