4.
the tropic of cancer is 23,5 degrees north of the equator. on a given day a vertical stick...
Biology, 07.10.2019 08:02 my7butterflies
4.
the tropic of cancer is 23,5 degrees north of the equator. on a given day a vertical stick on
the equator casts no shadow while one at the tropic of cancer does, calculate earth's
circumference using this information, (hint: one degree of latitude is approximately equal
to 111 km)
Answers: 3
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Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data
Answers: 1
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Indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. agouti x albino a) 1/2 albino, 1/2 agouti b) all agouti c) 3/4 agouti, 1/4 albino
Answers: 2
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Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants.d- food molecules are broken down in the cells if living things.
Answers: 1
Biology, 22.06.2019 14:30
Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d
Answers: 1
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