Biology, 29.09.2021 18:30 spotty1023
Poison ivy is a weed that grows in New York State. It synthesizes an oil, urushiol, that
causes skin rashes. Researchers have found that if poison ivy grows in an environment that
contains an increased concentration of carbon dioxide, the plants grow larger, faster, and
produce more urushiol. Because carbon dioxide levels in the atmosphere are rising, poison
ivy might become a hazard to people who work or vacation outdoors.
In order to verify this research, experiments must be carried out. Design an experiment to test whether
poison ivy is affected by air containing higher than normal concentrations of carbon dioxide. In your
answer, be sure to:
• state the hypothesis the experiment would test [1]
• state one way the control group should be treated differently from the experimental group [1]
identify two conditions that should be kept the same in both the control and the experimental groups [1]
describe the
type
of data to be collected [1]
identify one safety precaution that should be taken during the experiment and explain why it is
necessary (1)
PLEASE HELP.
Answers: 2
Biology, 21.06.2019 17:00
Which of the following statements is true? a. the main cause for speciation is an increase in gene flow. b. organisms that reproduce asexually are not considered part of a species. c. on a tree of life diagram, speciation is shown by the merging of two different lineages. d.the size of the geographic area inhabited by a population can cause speciation.
Answers: 2
Biology, 22.06.2019 07:30
The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?
Answers: 1
Biology, 22.06.2019 08:30
What are some natural processes that represent physical and chemical changes?
Answers: 1
Poison ivy is a weed that grows in New York State. It synthesizes an oil, urushiol, that
causes sk...
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