Answer:
Dr. Beadle was one of the first scientists to experiment with crossbreading, and this signifies early advancements in science.
Explanation:
Answer:
natural barriers
Explanation:
skin, mucous membrane, tears, earwax, muscus, stomach acid
Answer:
<em>The correct option is D) How is the number of frogs in Massachusetts affected by pollution</em>
Explanation:
A scientific question can be described as a question which can be answered through the scientific method of research. Based on the scientific question, a hypothesis can be formulated. For example, for the option D, the hypothesis can be 'if the pollution increases, then the number of frogs decreases.' A hypothesis is a tentative statement which can be tested through experiments. Based on these experiments, results are formulated and conclusions are drawn. The question mentioned in option D can be answered through this method hence, it is the correct option.
When you cross the parents on the outside of the Punnett square, the letters inside the boxes are the offspring