Enzymes are proteins catalysts and speed up reactions by lowering the energy needed to start them. Catalysts speed up the reactions in the cells so that they can happen in a fraction of a second, making them happen more quickly. Without catalysts, most cell reactions would not happen even over long periods of time.
The answer is,
d<span>istal convoluted tubule (dst)</span>
The blood then travels to the <span>open tricuspid valve. </span>
It was Tycho Brahe a Danish nobleman in the 16th century
<span>Cilia projections from cell surfaces that aid in locomotion and feeding; also used to sweep substances along surface, as well has flagella which is a tail-like projection that aids in locomotion</span>