The answer is A
Breeding of individuals that have genes for a single trait:
MONOHYBRID CROSS.
We call it a monodihybrid cross when we are considering a cross with only one trait or characteristic.
"mono" means one and "hybrid" means that each trait will have two different alleles (for gene A: A or a), one is dominant and the other is recessive.
The Civil War Amendments.
The snail would release Carbon Dioxide like humans do.
Mendeleev called the rows periods.
