For centuries scientists found evidence that supports the theory of spontaneous generation. Which of the following supported this theory?(1 point)
Responses
The swan-next flask experiment.
The swan-next flask experiment.
The sun rising in the east and seeing in the west.
The sun rising in the east and seeing in the west.
Maggots appearing on rotten meat.
Maggots appearing on rotten meat.
All living things are made of cells.
None of the options support the theory of spontaneous generation. The correct answer is "All living things are made of cells."
Thinking Scientifically Quick Check
2 of 52 of 5 Items
Question
Which piece of empirical evidence is qualitative data?(1 point)
Responses
The water temperature is 80ºF.
The water temperature is 80ºF.
The soup tastes salty.
The soup tastes salty.
The bicycle speed is 12 miles per hour.
The bicycle speed is 12 miles per hour.
The tree is eight feet tall.
The soup tastes salty.
Thinking Scientifically Quick Check
3 of 53 of 5 Items
Question
How did new evidence found by Marie Tharp and Bruce Heezen add onto continental drift and create the theory of plate tectonics? (1 point)
Responses
They proposed that mountain ranges at the edge of continents helped explain how continents used to fit together.
They proposed that mountain ranges at the edge of continents helped explain how continents used to fit together.
They showed fossils of the same organism on multiple continents helped explain how continents float on the mantle.
They showed fossils of the same organism on multiple continents helped explain how continents float on the mantle.
They proposed that continents are pieces of the Earth's crust floating on top of the mantle.
They proposed that continents are pieces of the Earth's crust floating on top of the mantle.
They showed what the oceans’ floors looked like helped explain how continents move over time.
They showed what the oceans’ floors looked like helped explain how continents move over time.
Which word best describes the statement that mass is neither made nor destroyed by chemical reactions or physical changes?(1 point)
Responses
law
law
experiment
experiment
hypothesis
hypothesis
theory
law
Which part of Newton's second law of motion explains why it is easier to push an empty cart than a full one?(1 point)
Responses
An object with greater mass requires less force to move.
An object with greater mass requires less force to move.
A greater force will cause a greater increase in acceleration.
A greater force will cause a greater increase in acceleration.
An object with greater mass will react with a greater force.
An object with greater mass will react with a greater force.
A greater force is needed to move an object with a greater mass.
A greater force is needed to move an object with a greater mass.
To determine which of the options supported the theory of spontaneous generation, we need to understand what the theory is. Spontaneous generation was an ancient belief that living organisms could arise spontaneously from non-living matter.
Looking at the options, the first one is "The swan-neck flask experiment." This experiment was conducted by Louis Pasteur in the 19th century and effectively disproved the theory of spontaneous generation. Pasteur showed that when broth is heated and sealed in a flask with a swan-neck shape, no microbial growth occurs even when left undisturbed for an extended period. This experiment provided evidence against the idea that living organisms could arise spontaneously.
The second option, "The sun rising in the east and setting in the west," is unrelated to the theory of spontaneous generation. It refers to the Earth's rotation and has no direct bearing on the topic.
The third option, "Maggots appearing on rotten meat," was often used as evidence in support of spontaneous generation in the past. People observed that maggots seemed to spontaneously appear on decaying organic matter. However, this phenomenon was later explained by the concept of "biogenesis," which states that living organisms arise only from other living organisms. The presence of maggots on rotten meat can be explained by the fact that flies laid their eggs on the meat, which then hatched into maggots.
The fourth option, "All living things are made of cells," is actually evidence against spontaneous generation. The discovery and understanding of cells by scientists such as Robert Hooke and Anton van Leeuwenhoek in the 17th century provided strong evidence that living organisms are not spontaneously generated but rather arise from pre-existing living cells.
Given this analysis, the option that supported the theory of spontaneous generation was "Maggots appearing on rotten meat." However, it is important to note that this belief was eventually disproven by scientific experimentation and observation.