Scientist best apply Critical thinking in their work through Observation, Hypothesis and Experimentation. Some people might say Scientific method. But Observation, hypothesis and experimentation are actually the steps in a Scientific method. So it doesn't count.
A good index fossil is one with four characteristics: it is distinctive, widespread, abundant, and limited in geologic time. Because most fossil-bearing rocks formed in the ocean, the major index fossils are marine organisms
The father is X^HY for colorblindness while the mother is X^hX^h for colorblindness, and when put in a Punnett Square the female children could only be X^HX^h. Because none of the daughters would be recessive for color blindness, none of them would be color-blind, whether they were dwarfs or not, so the answer is 0%.
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For most viral infections, treatments can only help with symptoms while you wait for your immune system to fight off the virus. Antibiotics do not work for viral infections. There are antiviral medicines to treat some viral infections. Vaccines can help prevent you from getting many viral diseases.
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