Answer:
Unfortunately, this temperature is on the order of billionths of a kelvin for black holes of stellar mass, making it essentially impossible to observe directly. Objects whose gravitational fields are too strong for light to escape were first considered in the 18th century by John Michell and Pierre-Simon Laplace.
<span>A substance undergoing thermal expansion will expand in some way. Most materials are subject to expand when heated and to contract when cooled</span>
Answer:
they disable the white cells and they make us sick and sometimes they stay and cause us to have cancer or strep throat or have to remove our tonsils
Explanation:
A primary active transport process is one in which <span>molecules move through transport proteins that have been activated by ATP.
</span><span>Primary active transporters, such as the sodium-potassium ATPase (or pump), are activated when ATP is hydrolyzed. This activation allows for the transport of solutes across the plasma membrane against concentration gradients.</span>
