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Answer:

Geothermal systems absorb heat from your home and transfer it to underground where it is then absorbed by the cooler earth. The geothermal pump uses the cool water returning from the ground to create cool, air conditioning for your home.

Explanation:

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Answer:

the first A.

Explanation:

The pond has high biodiversity.

Answer:

The Correct Answer Is | A. small pond has about 1,300 organisms and 26 different species living in it.

Explanation: (if you need one ill send it as a comment)

Answer:

The answer is option A

Explanation:

pretty sure about it

Answer: A. Farmers were not able to continue farming due to soil erosion and drought

Explanation: Farmers migrated elsewhere because of this and the health issues that the dust bowl inflicted on them. This is an economic impact since growing crops is their way of getting money and the dust bowl basically ruined their way of getting money ^^

Answer:

Ozone depletion occurs when chlorofluorocarbons (CFCs) and halons—gases formerly found in aerosol spray cans and refrigerants—are released into the atmosphere (see details below). ... CFCs and halons cause chemical reactions that break down ozone molecules, reducing ozone's ultraviolet radiation-absorbing capacity.

Explanation:

Answer:

it is a

Explanation:

Answer:

C. large muscles

Explanation:

Genes can control the color of the eyes, hair texture, and skin color but not muscles.

The earth's atmosphere is the air and gas surrounding our planet. Therefore, option (A) is correct answer

A planet is said to have an atmosphere if it has a layer or layers of gases that surround it and are kept in place by the gravity of the planetary body they are on. When the gravity of a planet is strong and the temperature of its atmosphere is cool, the planet is able to keep its atmosphere.

There are five primary layers and several subsidiary layers in the atmosphere of Earth. The troposphere, stratosphere, mesosphere, thermosphere, and exosphere are the five primary layers of the atmosphere, arranged from lowest to highest.

Therefore, option (A) vaporous ball is correct answer.

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Answer:

The key difference between the smooth endoplasmic reticulum and rough endoplasmic reticulum is that the smooth endoplasmic reticulum does not contain ribosomes on its surface while rough endoplasmic reticulum has ribosomes on its surface.

Explanation:credit : wiki

Answer:

Its folded mountains trust me on this

Explanation:

Answer:

an English scientist Robert hooke

Answer:

D. Earth´s lithosphere is thinner than its asthenosphere

Explanation:

The cross-section of the layers of the earth show that Earth’s lithosphere is thinner than its asthenosphere; option D.

The layers of the earth refers to the various layers or zone of water which make up the earth's crust.

The Mantle, one of the layers of the earth consists og:

The cross-section of the layers of the earth show that Earth’s lithosphere is thinner than its asthenosphere at 100 km and 660 km respectively.

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Answer:

The light colored pepper moths were able to camouflage in the Birchwood trees unlike the darker ones. But when the industrial revolution came the amount of smoke from the factories made the Birchwood trees become darker in color do now the darker pepper moths were the ones who could camouflage while the white ones were easily eaten and killed. Since the darker colored moths were able to survive they had offspring who were also darker colored. Over time since mainly darker moths were produced it was common for pepper moths to be darker.

Answer:

a - quantitative

Explanation:

Answer: It is converted to chemical energy.

Explanation:

Answer:

A chronic condition including attention difficulty, hyperactivity, and impulsiveness.

ADHD often begins in childhood and can persist into adulthood. It may contribute to low self-esteem, troubled relationships, and difficulty at school or work.

Symptoms include limited attention and hyperactivity.

Treatments include medication and talk therapy.

Explanation:

Symptoms include limited attention and hyperactivity.

you may experience:

Behavioral: aggression, excitability, fidgeting, hyperactivity, impulsivity, irritability, lack of restraint, or persistent repetition of words or actions

Cognitive: absent-mindedness, difficulty focusing, forgetfulness, problem paying attention, or short attention span

Mood: anger, anxiety, boredom, excitement, or mood swings

Also common: depression or learning disability

if you have any of the following you might have it im not saying you have just saying if you have these you might

Answer:

D

Explanation:

If you look under a microscope it would be easy to see the cell wall and the chloroplast. in the picture that I put you can easily see the green which is the chloroplast and the cell wall which is the thin outer layer of the cell.

Answer:

Even though matter can be found all over the Universe, you will only find it in a few forms  Scientists will probably discover more states of matter as we continue to  It's a fun state of matter when you remove almost all energy from a system.

Explanation:

The matter can be observed all over the Universe present in a few forms in the system.  Scientists  discover more states of matter.

The part of the universe in a  thermodynamic consideration is called a system and the remaining portion of the universe  is called surroundings.

Universe can be a combination of system + surroundings

A system is called as open system where exchange of  both matter and energy with their surroundings,  If water is kept in an open vessel it is allowed to exchange of matter and energy.

Closed system  is defined as the exchange of energy with the surroundings, like if some water is placed in a closed metallic vessel, so no exchange of matter occur between the system and the surrounding can take place.

Isolated system is defined as the system where neither matter exchanged  nor energy with the surroundings; Homogeneous and Heterogeneous systems refers to any system which consist of a single phase is called Homogeneous and if any system has more than one phase  is called Heterogeneous.

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Answer:

this is the answer from edmentum

Explanation:

The main reason that people eat is to get energy and the energy is used by the body to carry out its daily activities.

It should be noted that when we eat, the food needs to be broken down in order for the body to use them. This is done through the process of cellular respiration.

The energy that is in the food that's consumed by human beings is changed into the energy that's usable by the body cells. For example, the sugars in the foods will be digested into a monosaccharide. Also, the energy that's stored in the glucose is converted to ATP which is vital for the body.

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Answer:

A

Explanation:

Answer:

Asexual reproduction requires one parent and produces offspring that are genetically identical to that parent. ... The following are types of asexual reproduction that occur in protists: Binary fission: Binary fission occurs when a single protist divides its nucleus and then divides itself into two separate organisms.

Answer:

C. New cells are produced from existing cells.

Explanation:

Has three tenets:

1. All living organisms are composed of one or more cells

2. The cell is the basic unit of structure and organization in organisms

3. Cells arise from pre-existing cells

*C. is not one of them*

D. All cells have all the same structural parts is NOT a tenet of the cell theory.

The Cell Theory gives a description of what cells are. There are basically some set of principles that give a concise idea of what cells are. These set of principles are regarded as tenets of the cell theory.

Three major scientists named: Rudolf Virchow, Theodor Schwann, and Matthias Jakob Schleiden are credited to have postulated the tenets of the cell theory.

Note: All cells however do not have the same structural parts.

Therefore, option D. All cells have all the same structural parts, is NOT a tenet of the cell theory.

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Answer:

What is genetic modification (GM) of crops and how is it done? GM is a technology that involves inserting DNA into the genome of an organism. To produce a GM plant, new DNA is transferred into plant cells. Usually, the cells are then grown in tissue culture where they develop into plants.

Explanation:

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Answer:

The fossil record

Fossil remains have been found in rocks of all ages. Fossils of the simplest organisms are found in the oldest rocks, and fossils of more complex organisms in the newest rocks. This supports Darwin's theory of evolution, which states that simple life forms gradually evolved into more complex ones.

Evidence for early forms of life comes from fossils. By studying fossils, scientists can learn how much (or how little) organisms have changed as life developed on Earth.

There are gaps in the fossil record because many early forms of life were soft-bodied, which means that they have left few traces behind. What traces there were may have been destroyed by geological activity. This is why scientists cannot be certain about how life began.

Fossils provide a snap shot of the past and allow us to study how much or how little organisms have changed as life developed on Earth.

The theory of Evolution is supported by the evidence given by fossil study. Fossils are the preserved remains which helps us to know more about the past times.

The theory of Evolution explains that the environmental changes lead to the gradual change in traits which enhance the survival of organisms in environment. This explains natural selection. This theory has been proposed by Charles Darwin.

Fossils provide evidence about the organisms from the past that are not the same as those found today. Fossils are the preserved remains or traces of organisms which are important evidence of evolution.

Fossils show a progression of evolution. Scientists determine the age of fossils through radioactive decay which helps in categorize them from all over the world to determine when the organisms lived.

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A stretch of DNA with instructions for one trait is called as Genes. So, the correct option is (B).

Genes are the basic units of heredity passed from parent to child that are made up of sequences of DNA and arranged one after another at specific locations on chromosomes in the nucleus of cells.

A gene is described as the basic physical and functional unit of heredity that is made up of DNA. Some genes serve as instructions for making molecules called proteins, many genes do not code for proteins. In humans, genes vary in size from a few hundred DNA bases to over 2 million bases.

Genes carry the hereditary information from one generation to the next which control the structure and metabolism of the body.

Thus, a stretch of DNA with instructions for one trait is called as Genes. So, the correct option is (B).

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Answer:

carbohydrates include carbon hydrogen and oxegen so your answer is B

Explanation: nitrogen is more common in dna bases and proteins not carbs

Among the options given, nitrogen is not a component of carbohydrates. Thus, the correct option for this question is B.

Carbohydrates may be defined as the type of organic compounds that generally consists of carbon, hydrogen, and oxygen. These organic compounds deliver immediate energy to the body of organisms in order to facilitate metabolic processes and reactions.

According to the context of this question, nitrogen is a component of nucleic acids, proteins, etc. but it is not present in the structure of carbohydrates. It is also involved in the building blocks of proteins known as amino acids.

Therefore, among the options given, nitrogen is not a component of carbohydrates. Thus, the correct option for this question is B.

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Answer:

A. the frequency will decrease because all mutations are harmful, thus People with the mutation will die.