Answer :
Explanation : To find density, we can use the formula as given below;
density ρ =
Here, we have the mass as 89.6 g and the volume is ,
on calculating we get,
This means that the density of the copper sample is
The best answer would be:
A membrane bound nucleus
<u>Here is more about the question:</u>
There are three domains in the classification of organisms and they are Eubacteria, Archaea, and Eukarya. What makes Eukarya different from the other two is the presence of a nucleus in the cells. Among the remaining two, Archaea is more closely related to Eukarya than Eubacteria.
The protein that acts as a calcium receptor in skeletal
muscle is troponin. roponin, or the troponin complex, is a complex of
three regulatory proteins (troponin C, <span>troponin I</span>,
and troponin T)
that is integral to muscle contraction[2] in skeletal
muscle and cardiac
muscle, but not smooth muscle .
