Answer:
chromosome number is the precise number of chromosomes for a certain species.
Explanation:
in humans there are 46 pairs of chromosomes .
23 from father and 23 from mother.
The mantle i think sorry if i am wrong
Answer:
B
Explanation:
It's the same thing that Pavlov did with the dogs, but instead of a can opener, he used a bell. The dogs drooled at the sound of the bell because they knew that the food was coming.
Hair color or Eye color , one of the two
False, they are insect pollinated