Northern lights or auroras can be seen within the _____ sub-layer.

Answers

Answer 1

Answer: The answer is Ionosphere. Northern lights or auroras can be seen within the Ionosphere sub-layer. The ionosphere is the layer of the Earth's atmosphere that contains a large amount of ions and free electrons, it is also able to reflect radio waves, it can also conduct electricity.

Answer 2

Answer:

Northern lights or auroras can be seen within the ionosphere sub-layer.

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Which part of the amniotic egg stores the waste products produced by the. embryo?
Pests have always been a nuisance for farmers. The use of pesticides dramatically improved the success of crops; however, it has been found that some insects are no longer harmed by traditional pesticides. How would Charles Darwin, the man behind the theory of evolution by means of natural selection, explain this phenomenon. A) Through random mutations in DNA, some pests developed a resistance to the pesticide. B) The chemicals used in pesticides today are not strong enough to kill unwanted pests. C) The pesticides used in the past caused unwanted mutations in pests causing them to mutate into superbugs. D) Through repeated exposure to the pesticides, the pests simply got use to to the chemicals and built up a resistance.

suppose you conduct an experiment which simulates glacial recession over time. what is the dependent variable in this experiment? 1.Glacial mass 2.Sunlight 3.The season 4.Time

Answers

independent variable influences the dependent
dependent is depending on independent variable
example
the height of water is dependend on the independent variable of how much the sun evaporates

glacial recession is like icebergs melting

dependent would be the mass of the glacier because the others aren't influencable

answer is 1. glacial mass

1 is the obvious answer. sunlight nor season or time really have nothing to do with it.

A scientist thought he may have discovered a new plant compound that would lower blood pressure in people. In his first experiment, he injected one hundred mice with the compound and found that the blood pressure in ninety-five of the treated mice was not affected. However, all of the mice seemed to grow at a faster rate then the control group. Which statement describes the most likely outcome of this investigation?a. The knowledge gained will lead to further experimentation that could potentially result in a new use for the drug.
b. He will develop a second experiment to find a way to make the drug successfully lower blood pressure in mice.
c. The data he collected will be used in new investigations to determine why certain people are taller than others.
d. He will use these results to conclude that the drug will most likely lower blood pressure in five percent of people.

Answers

A. The knowledge gained will lead to further experimentation that could potentially result in a new use for the drug.

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Answer:

A on edge

Explanation:

Can enzymes be found in any life form?

Answers

yes, enzymes can be found in every type of living beings

yes , actually enzymes are found in all life forms, including the simplest of organisms like amoeba.

Impala share the African plains with other grazing animals and predators. Which change would lead to a DECREASE in the impala population

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Increase in predator population, food scarcity, water scarcity, lack of space, etc.

Why is homeostasis important to the survival of an organism

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Homeostasis is needed for an organism to survive because it keeps its internal environment stable.

It ensures that important physiological factors such as temperature, pH and nutritional levels remain within ideal limits. The stable environment allows for the proper functioning of cells and tissues, supporting metabolism as well as the creation of energy and enzyme activity.

Homeostasis enables organisms to adjust to changes in the external environment, by coordinating responses including temperature control, fluid balance, and hormone release. Many organ systems must work together to keep the body balanced. Without homeostasis, cellular processes would be disturbed and the organism's ability to adjust to environmental changes would be compromised, jeopardizing its ability to survive.

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It helps an organism maintain balance within a certain environment. For example, a person shivering when its cold helps generate heat in the body.

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According to the cdc, tooth decay affects more than ________ of u.s. children aged 2 to 5.

Answers

According to the CDC, tooth decayaffects more than one-fourth of U.S. children aged 2 to 5.Tooth decay is thedamage of the structure of the tooth which is caused by acids that are producedwhen sugar is being broken down by plaque bacteria in the mouth. Tooth decay is the primary cause of tooth loss in children in the UnitedStates.

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Many ranchers prefer cattle without horns. Thepresence or absence of horns is genetically determined. The allele for the absence of horns (A) is dominant to the allele for the presence of horns (a). A male with horns is mated with a heterozygous female without horns. What percentage of the offspring would be expected to have horns? (1 point) A. 25% B. 50% C. 75% D. 100%