Thermal energy always flows from an object with a __________ temperature to an object of __________ temperature.

lower, higher


thermal energy does not flow


higher, lower

Answer

Thermal energy always flows from an object with a Higher temperature to an object of Lower temperature.

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Thermal energy always flows from an object with a higher temperature to an object of lower temperature.

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If a disease destroying barley plants in in a field swept through an ecosystem, what would happen to the barley eating bird population in that ecosystem?


A.The bird population would decrease

B.The bird population would stay the same

C.The bird population would increase

You see a boat filled with people. It has not sunk, but when you look again you don’t see a single person on the boat. Why?

How will the dam most likely affect the ecosystem around the river?

Organisms are classified according to shared characteristics. This process has led to the development of a classification system that has various levels of organization. Which of the following levels of classification is of the lowest hierarchy?
A. domain
B. class
C. family
D. species

How does lake effect snow affect the human population living in New York? Support your claim with evidence from the article. Then, explain why the evidence supports your claim. You need a paragraph (5-8 complete sentences).

Ava was studying the history of Earth. She learned that radioactive decay helps scientists to determine rock ages. Explain how radioactive dating allows scientists to calculate the ages of rocks.

New technologies often lead to advancements in science. New technology might enable many new experiments to be done, and these new experiments can produce evidence showing that a widely accepted scientific theory may be wrong. Which of the following is the best example of a technology affecting scientific theory?
A. The washing machine helped diminish the spread of bacteria.
B. The telescope helped advance the heliocentric model of the solar system.
C. The microscope allowed scientists to closely inspect insects.
D. The telephone allowed scientists to communicate much more easily.

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20 POINTS! Someone please answer this question;

Mention 2 differences between sexual and asexual reproduction.

In reporting the results of investigations, scientists generally include both the methods used in the investigation and the results. Which of these best explains why scientists typically document their research methods as well as their results?
A. Scientists include their research methods because other scientists need to repeat the tests and confirm their results.
B. Scientists include their research methods because other scientists are always looking for new ways to investigate nature.
C. Scientists include their research methods because other scientists don’t trust that an investigation was necessarily carried out correctly.
D. Scientists include their research methods because they need to demonstrate that they were completely and totally honest in conducting their tests.

A scientist was taking water samples, but forgot to label them! Sample A was taken in the Gulf of Mexico, Sample B was taken at the mouth of the Mississippi River and Sample C was taken in the Mississippi River. Explain how he could determine which sample is which.

Which of the relationships listed is a consumer—producer relationship?

A. grasshoppers eating grass
B. roadrunners eating snakes
C. snakes eating toads
D. toads eating grasshoppers

Cellular respiration is one process that plant cells and animal cells use to maintain homeostasis. Which of the following best summarizes the process of cellular respiration?
A. making food using sunlight and nutrients
B. breaking down food to release energy
C. breaking down and eliminating waste products
D. making proteins by linking amino acids

Which statement best compares Earth’s crust to its mantle?

A.
The crust only contains nonmetals, and the mantle contains metals.

B.
The mantle is the thinnest layer, and the crust is the thickest.

C.
The mantle only contains nonmetals, and the crust contains metals.

D.
The crust is the thinnest layer, and the mantle is the thickest.

True or False: Diseases cannot be inherited through genes.

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This is a example of ____

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Results in science are not generally accepted as being accurate until they can be verified. Which of the following is an example of repetition in science?
A. A student designs an experiment on plant growth that includes multiple trials.
B. One scientist carries out the same experiment performed by another scientist to validate the results.
C. A scientist poses a new question for investigation after reading the results of another scientist’s work.
D. A scientist analyzes the data included in the published work of another scientist and agrees with the conclusions