The spiders that survived the first pesticide spraying were resistant to the pesticide and when they reproduced most of their offsprings got the gene of pesticide resistance.
The right choice for your question is A. A dog has three alleles for a certain fur color.
Answer:
Chromosomes (two sister chromatid bonded) or Chromatids (separate parts of a chromosome)
<span>Creation of egg cells and production of estrogen and progesterone, I think but I'm pretty sure it would be easier if I could see the diagram.</span>
Answer:
A biologist discovered a young, four-legged animal. The animal had lungs, seemed to fertilize internally, and its outer surface was covered with scales. In which class of animals is the biologist likely to place the animal?
reptile
