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In a scientific experiment how many independent variables should be tested at the same time? A. none B. one C. two D. three or more
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Asked 4/5/2013 7:49:32 AM
Updated 9/24/2014 6:15:55 PM
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This answer has been confirmed as correct and helpful.
Edited by Janet17 [9/24/2014 6:12:40 PM], Confirmed by Janet17 [9/24/2014 6:12:55 PM]
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User: In a scientific experiment how many independent variables should be tested at the same time? A. none B. one C. two D. three or more



Weegy: In a scientific experiment, ONE independent variable should be tested at a time. To ensure a fair test, a good experiment has only one independent variable.
Expert answered|ge|Points 20|

User: A student designed an experiment to test the effect of temperature on bacterial growth. He grew three different cultures of E. coli in three incubators at different temperatures. What was the independent variable in this experiment? A. length of experiment B. number of bacteria C. reproduction rate D. temperature

Question
Asked 4/5/2013 7:49:32 AM
Updated 9/24/2014 6:15:55 PM
1 Answer/Comment
This answer has been confirmed as correct and helpful.
Edited by Janet17 [9/24/2014 6:12:40 PM], Confirmed by Janet17 [9/24/2014 6:12:55 PM]
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A student designed an experiment to test the effect of temperature on bacterial growth. He grew three different cultures of E. coli in three incubators at different temperatures. The independent variable in this experiment was TEMPERATURE.
Added 9/24/2014 6:15:55 PM
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What do you call a group of organisms that are of the same species in an ecosystem? A. community B. producers C. population D. consumers
Weegy: C. Population: A group of organisms of the same species living in the same area at the same time, and which are capable of interbreeding User: According to the energy pyramid, the primary producer would be something that made its own food, the primary consumer would be the organism that ate the producer, the secondary consumer would be the organism that ate the primary consumer and the tertiary consumer would be the organism that ate the secondary consumer. Which category would a mouse fall into on the energy pyramid? A. primary consumer B. primary producer C. secondary consumer D. tertiary consumer Weegy: A mouse can be a C. secondary consumer. Actually, it depends on the the situation whether who eats what. (More)
Question
Expert Answered
Updated 9/24/2014 6:26:07 PM
1 Answer/Comment
A mouse falls into the PRIMARY CONSUMER category on the energy pyramid (because a mouse eats producers).
Added 9/24/2014 6:26:07 PM
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Bacteria that use chemicals, like sulfur, as an energy source are considered A. saprobes. B. heterotrophs. C. chemoautotrophs. D. photoautotrophs.
Weegy: Bacteria that use chemicals, like sulfur, as an energy source are considered: chemoautotrophs. (More)
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Expert Answered
Updated 9/24/2014 6:07:32 PM
0 Answers/Comments
Excerpted from "The Highwayman" by Alfred Noyes The redcoat troops came marching – Marching – marching – King George's men came marching, up to the old inn-door. Which figurative language device do these lines from "The Highwayman" contain? A. simile B. metaphor C. alliteration D. repetition
Weegy: D. alliteration User: THIS lovely morn the dewdrops flash Like diamonds on the grass- A blaze of sparkling jewels! But The autumn wind, alas! Scatters them as I pass. -Asayasu Which of the following states the poet's perspective in the poem? A. The greatest treasures are diamonds and jewels. B. This delicate moment is fleeting. C. Wind is more powerful than diamonds. D. Diamonds and dewdrops sparkle with intensity. (More)
Question
Updated 9/24/2014 5:29:11 PM
2 Answers/Comments
The lines from "The Highwayman" contain the figurative language device of REPETITION (marching).
Added 9/24/2014 5:20:51 PM
This answer has been confirmed as correct and helpful.
The following states the poet's perspective in the quoted poem: This delicate moment is fleeting.
Added 9/24/2014 5:29:11 PM
This answer has been confirmed as correct and helpful.
What do all ecosystems have ? A. biotic parts only B. abiotic parts only C. producers only D. biotic and abiotic parts
Weegy: All ecosystems have D. biotic and abiotic parts. User: How much energy is transferred when one organism consumes another organism? A. 10% B. 90% C. 80% D. 5% Weegy: How much energy is transferred when one organism consumes another organism? A.10% User: How much energy is lost when one organism consumes another organism? A. 10% B. 90% C. 80% D. 5%\ Weegy: How much energy is lost when one organism consumes another organism? A. 10% (More)
Question
Expert Answered
Updated 9/24/2014 6:19:53 PM
1 Answer/Comment
90% of energy is lost when one organism consumes another organism.
Added 9/24/2014 6:19:53 PM
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Which of the following processes can be found in both bacteria and protists? A. fusion of gametes B. binary fission C. mitosis D. meiosis
Weegy: Which of the following processes can be found in both bacteria and protists? D. meiosis User: Which of the following does NOT describe dinoflagellates? A. possess flagella B. multicellular C. cause red tides D. unicellular Weegy: Which of the following processes can be found in both bacteria and protists? D. meiosis (More)
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Expert Answered
Updated 9/24/2014 5:37:26 PM
2 Answers/Comments
Binary fission is a process found in both bacteria and protists.
Added 9/24/2014 5:35:41 PM
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Rated good by awesomec03
The following does NOT describe dinoflagellates: multicellular.
Added 9/24/2014 5:37:26 PM
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Rated good by awesomec03
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