Biology, 06.11.2020 06:20 dprajapati832000
38. A student wants to test the hypothesis that catalysts speed up chemical reactions. She decides to use beef liver since she knows that the
liver contains catalysts that speed up chemical reactions in mammals. She sets up her reaction tubes as follows: test tube 1 has the
reaction chemicals and no liver. Test tube 2 has liver but no reaction chemicals. Test tube 3 has the reaction chemicals and a small piece
of liver. She observes the following: (1 point)
Test Tube 1 Small gas bubbles form
Test Tube 2
No reaction
Test Tube 3 Vigorous bubbling, test tube hot
Answers: 2
Biology, 22.06.2019 03:30
State officials are considering constructing a road through a forested wilderness area. this action will likely affect the forest ecosystem in various ways. part a: predict how the construction of a road could negatively affect plants and animals in that ecosystem. (3 points) part b: describe one way that the construction of a road could have a positive impact of the forest ecosystem. (1 point)
Answers: 1
Biology, 22.06.2019 07:30
What is one way intensive agriculture can contribute to climate change? a. tree loss to agriculture increases earth's albedo b. livestock manure absorbs greenhouse gases c. large herds of livestock release greenhouse gases d. fewer trees are available to replenish petroleum stores appex
Answers: 2
Biology, 22.06.2019 11:00
Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.
Answers: 1
38. A student wants to test the hypothesis that catalysts speed up chemical reactions. She decides t...
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