A state of biological balance, or _HOMEOSTASIS_, is important for the survival of individual cells and _the whole organism_ alike.
Answer: The percent yield is, 42%
Explanation:
To calculate the moles :


The balanced chemical reaction is:
According to stoichiometry :
1 moles of
require = 3 moles of 
Thus 0.020 moles of
will require=
of 
Thus
is the limiting reagent as it limits the formation of product and
is the excess reagent.
As 1 mole of
give = 2 moles of 
Thus 0.020 moles of
give =
of 
Theoretical mass of 
Actual mass of
= 1.1 g
Now we have to calculate the percent yield

Therefore, the percent yield is, 42%
The correct answer is A, D, E.
A. Cambrian.
D. Permian.
E. Silurian.
Triassic period was termed as the period for the mesozoic era. This time period followed extinction of great mass which founded at the end of period of permian.
It is during the period of triassic when first mammal and dinosaur appeared.
During late permian, plants like horsetails and mosses were extinct.
Those plants which evolved in on the of triassic were cydophytes and confers.
The answer is A) intermediate filaments
Hope this helps!
-Payshence xoxo