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miskamm [114]
3 years ago
15

Maya's father told her that hummingbirds like to drink the nectar from red flowers. Maya noticed that most of the hummingbird fe

eders in the store were made of red plastic. She wondered if this were really true. She decided to conduct an experiment to see if hummingbirds really preferred red flowers to other colors. Maya hung three bottles, upside-down, in her garden. One was red, one was green, and the last one was clear. She filled the bottles with the same sugar solution and screwed a drip nozzle into each one. Then she waited and watched. What is the independent variable in this experiment? A) the color of the feeder B) the location of the bottles C) the amount of sugar solution D) how much the hummingbirds ate
Biology
2 answers:
OLga [1]3 years ago
8 0

Answer:

B

Explanation:

the location of the bottles and the sugar solution

Genrish500 [490]3 years ago
6 0

Answer:

The color of the birdfeeders

Explanation:

Independent variable is the variable in the experiment that is changed, so the only thing changed in this experiment is the colors of the bird feeders

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Answer:

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Explanation:

The theory of miasma was proposed in the past when some scientists —like doctors Thomas Sydenham and Giovanni Maria Lancisi— thought that disease was the product of emanations originated by the decomposition of organic matter. This theory was based on the fact that diseases predominated in places with poor hygienic conditions.

John Snow, an english physician, was one of the main contributors to the <u>microbial theory of disease</u>. In 1854, while a cholera epidemic was occurring, he collected data and organized it statistically and then concluded that the disease was caused by germs present in drinking water. This <u>data was contrary to the miasma theory, which would eventually be displaced by the microbial theory of the disease</u>.

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3 years ago
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Answer:

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