Biology, 22.07.2019 01:00 TimothyYash9403
Abiology student is studying ways to grow crops in soils that are high in salts and other dissolved solids. to determine whether corn plants can tolerate salty soil conditions, she grows 50 corn plants in typical garden soil and 50 corn plants in the same garden soil plus 0.01 kilograms of salt. after 6 weeks of growth, the corn plants grown in salty soil were the same mass and height as the corn plants grown in non-salty garden soil. the student concluded that salt had no effect on the growth of corn. what comment would you make to the student regarding her experimental design and conclusion? a) the experimental design included both a control and an experimental group. the conclusion is valid. b) the student should have used more plants in each sample group; the larger the sample size, the more valid the results. c) the conclusion is not valid. increasingly high amounts of salt should have been added to more corn plots for comparison. d) although the conclusion is valid, next time the student might want to grow corn in plots with different water and temperature conditions as well.
Answers: 1
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Indica el nombre y la fucion de los vasos sanguineos que entran y salen de los riñones
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Biology, 22.06.2019 02:00
The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.
Answers: 3
Abiology student is studying ways to grow crops in soils that are high in salts and other dissolved...
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