True, only plant cells have vaculoes.
B) Both parents are heterozygous. It is clear that Black fur is a dominant trait, so a white mouse is the result of two submissive traits clicking together.
I believe it is called electrotherapy..
Answer: A
Explanation:
Let’s use the other answers to compare
B. This is unreasonable, they ARE different.
C. This is incorrect sodium chloride does NOT have more atoms
D. This is simply incorrect :)
Answer: A
The correct answer is - A. Death rate.
We get the fertility rate from the birth rate and the death rate. More specifically, from the number of the children that are born in a given time frame (usually a year) we minus the number of the people that have died in the same time frame, so the difference between them gives us the fertility rate.
The fertility rate can be positive (in the difference is a positive number) and negative (if the difference is negative number).