Scientists want to determine whether chemical X, a component of fertilizer, is harmful to fish. They treat fish in the
laboratory with increasing amounts of the chemical for one week and then measure their viability. Fish that are not treated
with chemical X are considered ____.
a. experimental data
b. controls
c. replicates
d. experimental variables
e. the null hypothesis
b
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Iron meteorites are rare to observe as meteoroids near Earth
a. True b. False Indicate whether the statement is true or false
What is the correct path a smell sensation takes
on its way to the brain?
a. mechanoreceptors>>olfactory bulb>>olfactory tract>>cerebrum b. chemoreceptors>>olfactory bulb>>olfactory tract>>cerebrum c. mechanoreceptors>>olfactory tract>>olfactory bulb>>cerebrum d. chemoreceptors>>olfactory tract>>olfactory bulb>>cerebrum e. chemoreceptors>>olfactory bulb>>olfactory tract>>cerebellum
What is the difference between PubMed and OMIM?
What will be an ideal response?
If a diploid cell has 12 chromosome pairs, how many different combinations of chromosomes are possible in gametes after meiosis?
A) 1012 B) 122 C) 212 D) 1212 E) 1220