Biology, 14.12.2020 20:20 dootdootkazoot

A student conducts an investigation studying the effect of the amount of different types of fertilizer on plant growh rate. He takes 20 plants from 4 different plant types growing each one over the period of 60 days and one group gets no fertilizer, measuring and recording data every few days. He makes sure each plant gets the same amount of water, soil and sunlight. What is the biggest flaw in this experiment?

a No constants
b Different types of plants
c No control group
d Not a large enough sample size

Answers: 3

Show answers

Other questions on the subject: Biology

Biology, 22.06.2019 02:00, aredding7016

The accompanying figure shows the percent of selected dna sequences that match between a chimpanzee and other primates. these data support the hypothesis that the figure shows the percentage of selected d n a sequences that match between the chimpanzee and other primates. the human has an almost 98 percent match, the gorilla has an almost 97 percent match, the orangutan has a 96 percent match, the gibbon has an almost 95 percent match, and the old world monkey has an almost 92 percent match. the accompanying figure shows the percent of selected dna sequences that match between a chimpanzee and other primates. these data support the hypothesis that the figure shows the percentage of selected d n a sequences that match between the chimpanzee and other primates. the human has an almost 98 percent match, the gorilla has an almost 97 percent match, the orangutan has a 96 percent match, the gibbon has an almost 95 percent match, and the old world monkey has an almost 92 percent match. chimpanzees and gibbons are the most closely related the chimpanzee's closest surviving relative is humans orangutans are the primates least closely related to chimpanzees old world monkeys and gibbons are the most closely related

Answers: 1

continue

Biology, 22.06.2019 03:00, cocodemain

How did the discovery of the rhesus factor affect society? o more patients died from having a transfusion with the wrong rhesus factor 0 new treatments during pregnancy could prevent harm to the developing child. o less donated blood could be used in the treatment of patients. the number of blood types was reduced by half

Answers: 2

continue

Biology, 22.06.2019 03:30, AdoNice

Acommon kind of mechanical weathering is called

Answers: 1

continue

Biology, 22.06.2019 06:30, poohnia

What molecule does hemoglobin decay into over time

Answers: 1

continue

You know the right answer?

A student conducts an investigation studying the effect of the amount of different types of fertiliz...