Answer:
1. 78
2. B
3. This is because asexual reproduction involves copying a single parent's set of chromosomes rather can combining two sets of parent chromosomes.
Step-by-step explanation:
1. They receive 39 chromosomes from each parent, equaling up to a unique set of 78 chromosomes. This equals up to 39 pairs of chromosomes in every dog, which can each have slight genetic differences.
2. Dogs reproduce sexually, as they do not use their own cells to create another dog. This is best described with model B, as it demonstrates the combination of two parent sets of chromosomes to create genetically unique offspring.
3. In the charts provided, asexual reproduction is just a single parent set replicating itself to make a clone of themselves. This does not result in genetic variation, as there are no other sources besides the single parent to create diversity. On the other hand, sexual reproduction involves the combination of two varying parent sets, which lead to a combined and unique organism.
Tip: try to revise what Ive listed to avoid plagiarist claims!!
Asexual reproduction is so cool though, imagine being able to create clones literally by naturally copy and pasting your own cells...
Hope this helps!!