Answer: we can make observations directly by seeing, feeling, hearing, and smelling, but we can also extend and refine our basic senses with tools: thermometers, microscopes, telescopes, radar, radiation sensors, X-ray crystallography, mass spectroscopy, etc. And these tools do a better job of observing than we can!
In broad terms, finches. In specific terms, he observed how over time, the beak sizes and shapes of said finches changed to adapt to the food sources available.
I hope I was able to help. Best of luck.
Heterozygous refers to a pair of alleles in which one is dominant and one is recessive. As you can see, all genotypes for possible offspring in the Punnett square are heterozygous. This means the probability of the parents having a child that is heterozygous is 100 percent likely.
Answer:
<span>D. 100%
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