Answer:
False
Explanation:
Scientific notation is the use of x x 10^x to write very large numbers in a shorter form.
2 or more different atoms are combined in definite proportions in any compound.
I think I understand even without the picture. I'll add a picture of the Punnett Square filled in, but what you're crossing is
Tt x tt (heterozygous crossed with a homozygous recessive)
The ratio you get in the end is 2 heterozygous (Tt) and 2 homozygous (tt) offspring, so the ratio is 1:1.
So the percentage of offspring that are homozygous recessive is 50%.
One way is to see if it responds to stimulants or if it reproduces