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Olin [163]
3 years ago
15

The maps below represent the same area of the Amazon rainforest over an 8-year period as humans moved into the rainforest. Fores

ted areas are shown in deep green, and cleared areas are tan (bare ground) or light green (pasture land). Which of the following statements is best supported by evidence from the maps? A. This area became more densely populated with trees between 2000 and 2008. B. Humans living in this area began an extensive forest restoration program between 2000 and 2008. C. Humans began leaving this area to find jobs in nearby cities between 2000 and 2008. D. This area changed appearance between 2000 and 2008 because trees were cleared.

Biology
1 answer:
antoniya [11.8K]3 years ago
4 0

Answer:

D.)

Explanation:

am smart

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A farmer wants to know if adding antibiotics to cow feed will fatten them up. He takes two groups of 25 cows each. One group is
galina1969 [7]

Answer:

The correct answer is-

Hypothesis: Antibiotics cause weight gain in cows.

Independent Variable: Antibiotic pill

Dependent Variable: Weight of cow

Control Group: a group of cows gets a placebo pill

Experimental Group: a group of cows gets an antibiotic pill

Explanation:

The Independent variable is the variable that causes the response from the dependent variable or affects the dependent variable in this study the antibiotic pill affects the weight of cows so The independent variable is an antibiotic pill and the dependent variable is the weight of cows.

The control group is the group of subjects that did not get the treatment in a scientific study in the case of this study group of cows that receives the placebo pill is the control group and the experiment group is subjects that receive the treatment which is a group with the antibiotic pill.

4 0
3 years ago
Carbon dioxide in the atmosphere traps heat. scientists are concerned that too much carbon dioxide is being released into the ai
Dovator [93]
Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement
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3 years ago
Which of the following pairs is mismatched? RNA polymerase – makes a molecule of RNA from an RNA template DNA ligase – joins seg
disa [49]

Answer:RNA polymerase – makes a molecule of RNA from an RNA template

Explanation: RNA polymerase is an enzyme that catalyzes the copying of a DNA sequence into an RNA sequence during transcription. RNA polymerase uses a DNA template for the synthesis of an RNA strand. RNA polymerase is also called DNA-dependent RNA polymerase. During transcription, DNA helicase unwinds the double helix of the DNA while the RNA polymerase catalyzes the synthesis of an RNA strand from the DNA.

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What is the most likely outcome for a cell that is not allowed to divide?
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The cell will eventually explode. The cell membrane can not support the enlarged size and the cell bursts.
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Which chamber of the heart pumps deoxygenated blood to the lungs?
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The right ventricle pumps deoxygenated blood to the lungs.
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