(20 Points) Which statement explains the most common relationship between sleep deficiency and substance abuse?
-It can cause one to crave alcohol.
-It can increase one’s stress level.
-It can lead one to use stimulants.
-It can lower one’s inhibitions.

Answer:

It is likely that the lizards that live isolated from the rest (maybe in the farthest island) have more chances to survive because the disease needs to enter into the lizard's habitat to attack these populations. However, it is important to note that we need to know which is the cause of this disease in order to establish a working hypothesis.

Answer:

The cell process that causes grow and repair of  body cells including skin and nails is called mitosis.

The process of mitosis increases number of cells and enable them grow and also replaces the dead cells or lost cells with new cells for proper functioning of cells. Mitosis is important for the replacement of cells which constantly lost and grow.

In the mitosis process, parent cell split into twin daughter cell and carry identical DNA which helps in replacement of lost cells and growth of cell as in skin and nails.

Hence, mitosis helps in the renewal and growth of skin cells and nails.

Answer:

According to the video, fossils provide each of the following except:

b. A complete record of past life on Earth

Explanation:

The reasons behind this answer are that one single fossil can include the whole record of life forms on earth's history. It might only contain a fraction of a form of life because the majority of fossils don't include more than woven bone. Therefore, it is only a fraction of the living being. also, it doesn't contain a record of its evolutionary chain or that the species of the fossil became extinct. We could find a crocodile fossil and they are still alive in modernity.

Answer:

Elephants use dirt as sunscreen, to counteract the damaging rays of the sun, elephants throw sand on themselves. Adult elephants will also douse youngsters with dust. When coming out of a bath in a river, elephants will often throw mud on themselves as a layer of protection.

Explanation:

Answer:

A. spiral galaxies are not pinwheel-shaped

Explanation:

There are three types of galaxies that include spiral galaxy, elliptical galaxy and irregular galaxy.

Elliptical galaxies are round shaped as well as elongated. Elliptical galaxies have both old and new stars but mostly it contains old stars.

Spiral galaxies are pinwheel-shaped due to the regular spinning motion of dust, stars and gas around the galactic center, at speeds of hundreds of kilometers per second which allows the matter to take a  pinwheel-shape. Spiral galaxies are made up of lot of gas and dust and forms many new stars which allows the spiral galaxy to shine bright.

Irregular galaxies do not have any definite shape because of the gravitational influence of close galaxies. They also have many new stars.

Hence, the error is foudn in first sentence, where it says that spiral galaxies are not pinwheel shaped. so teh correct option is A.

Answer:

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Explanation:

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Protein digestion begins when you first start chewing. There are two enzymes in your saliva called amylase and lipase. They mostly break down carbohydrates and fats. Once a protein source reaches your stomach, hydrochloric acid and enzymes called proteases break it down into smaller chains of amino acids.

Answer:

Option C. Protease

Explanation:

Amylase and other carbohydrase enzymes break down starch into sugar. Protease enzymes break down proteins into amino acids. Lipase enzymes break down lipids (fats and oils) into fatty acids and glycerol.

Answer:

seed dispersal

Explanation:

The baldcypress tree is a known tree of southern swamps. the floodwater act as an agent of seed dissemination of the baldcypress  seed.

Floodwaters in the Florida swamps serve a vital role in the life cycle of bald cypress trees by spreading their seeds, which are protected within cones, throughout the swamp. This facilitates reproduction and aids in the survival and propagation of the species.

The floodwaters play a crucial role in the life cycle of the bald cypress by serving as a dispersion agent for its seeds. Bald cypresses produce seeds inside cones, which get spread throughout the swamps during floods. This is integral to the reproductive process. The seeds have a superior evolutionary advantage as the hardened tissue coat prevents desiccation and allows dormancy until conditions are favorable for growth. Seeds are then scattered in an expanding geographic range, thereby avoiding competition with the parent plant.

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Answer:

C. Very few species have ever gone extinct.

Explanation:

784 extinctions have been recorded since the year 1500 alone

The false statement is Very few species have ever gone extinct, as scientific evidence suggests up to 99.9% of species that have ever lived are now extinct. Option C is correct.

The false statement among the options provided is Very few species have ever gone extinct. This statement contradicts the widely accepted scientific understanding that up to 99.9% of all species that have ever lived on Earth are now extinct.

There have been five mass extinctions in Earth's history that have caused the disappearance of a large percentage of species, and current rates of extinction are higher than the background extinction rates largely due to human activities. Moreover, the process of speciation continues to create new species, which sometimes evolve to be more complex.

Hence, C. is the correct option.

Answer:

metron witch means measure

Explanation:

The word 'meter' comes from the Greek word 'metron' which means 'measure'. A meter is the base unit of length in the SI unit system and its definition has refined over time with technological advancements.

The term meter is derived from the Greek word 'metron' which means 'measure'. The meter is the basic unit of length in the International System of Units (SI), and its definition has evolved over time for increased precision. Initially in 1791, a meter was defined as 1/10,000,000 of the distance from the equator to the North Pole. However, as science progressed and new technologies emerged, this definition was reshaped and is now based on the distance that light travels in a vacuum in a certain fraction of a second.

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Answer:

C

Explanation:

The most plausible environmental change leading to smaller front teeth in modern tigers compared to saber-toothed cats is the disappearance of large herbivores which initially required saber-tooths to have massive teeth for hunting.

The question asks to predict a change in the environment that could have led to the development of smaller front teeth in the modern-day tiger, compared to their ancestor, the saber-toothed cat. Analyzing the given options, the most plausible change is C) The disappearance of the huge herbivores that saber-toothed tigers hunted. These large prey required the saber-tooths to have massive teeth for capturing and defeating them. When these herbivores declined, the selective pressure for such large teeth would have diminished, leading to the smaller, more versatile teeth seen in today's tigers that are adapted to hunt a more varied and less robust prey base.

Answer:

The job of a neuron is to transmit information throughout the body. Specialized nerve cells help to communicate in chemical and electrical forms.

Explanation:

Hope this helps you :)

Answer:

Science is used to describe the knowledge about the universe and the method of obtaining that knowledge

The word science describes knowledge about the universe and its methods of acquisition using evidence and logic. It involves the scientific method, a systematic process of observation, experimentation, and hypothesis testing. Science seeks to explain general truths and natural laws.

The word used to describe knowledge about the universe and the method of obtaining that knowledge is science. Science is a distinctive way of gaining knowledge about the natural world that tries to answer questions using evidence and logic. It covers general truths or the operation of general laws, especially when acquired and tested by the scientific method.

The scientific method is a systematic process of observation, experimentation, and hypothesis testing. For instance, to understand the laws of motion, scientists observe natural phenomena, formulate hypotheses, conduct experiments, and revise their theories based on the acquired data.

Answer:

carnivores eat meat and herbivorres eat plant

Explanation:

Answer:

Carnivores have a trophic level of 3 and Herbivores have a trophic level of 2 I hope I understood the question :)

Final answer:

The incorrect statement in describing the structure of the ear is B) The inner ear consists of the auricle and auditory ossicles. The auricle is part of the outer ear, and the auditory ossicles are in the middle ear, not the inner ear.

Explanation:

If you were explaining the structure of the ear to a friend and considering what components would not be part of such an explanation, let's evaluate the options provided:

A) The middle ear consists of the malleus, incus, and stapes. - This statement is correct. The middle ear does contain the three ossicles: malleus (hammer), incus (anvil), and stapes (stirrup).

B) The inner ear consists of the auricle and auditory ossicles. - This statement is incorrect. The auricle and auditory ossicles are not part of the inner ear; the auricle is part of the outer ear, and the auditory ossicles are part of the middle ear.

C) The outer ear consists of the auricle and the external acoustic meatus. - This is a correct description of the outer ear, which includes the auricle (also known as the pinna) and the external acoustic meatus (ear canal).

D) The inner ear contains canals filled with fluid. - This is accurate. The inner ear contains the cochlea and semi-circular canals, which are indeed filled with fluid.

Therefore, the correct answer is B, as it includes elements that are not part of the inner ear's structure.

Answer:

both kingdoms have living organisms made up of complex eukaryotic cells.

Explanation:

Answer:

Pathogens, inflammatory

Explanation:

Pathogens are defined as disease causing microorganisms and the inflammatory response involves redness, swelling, and sometimes fever.

Hope that was helpful!  

The body can be invaded by pathogens, which are harmful microorganisms such as bacteria, viruses, fungi, and parasites that cause diseases.

When pathogens enter the body, the immune system initiates a response to fight them off. This response is called the immune response, and it involves a complex network of cells, tissues, and organs that work together to recognize and eliminate pathogens.

The immune response may involve a range of symptoms, such as redness, swelling, fever, and pain, as the body attempts to neutralize and remove the invading pathogens.

In some cases, the immune response can cause symptoms such as redness, swelling, fever, and pain, as the body attempts to neutralize and remove the invading pathogens.

These symptoms are typically a sign that the immune system is working to fight off the infection. However, in some cases, the immune response can also cause damage to healthy tissues and organs, leading to more severe symptoms and complications.

The body's immune response is a complex and highly coordinated system that is essential for protecting us from harmful pathogens. However, it is important to maintain a healthy lifestyle, such as through proper nutrition, regular exercise, and good hygiene practices, to support the immune system and minimize the risk of infections.

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The chromosomes of the somatic cells become only to the egg cell. (Option B).

What happens during fertilization?

During fertilization, the nuclei of both the egg and sperm fuse to form a single nucleus in the zygote.

The zygote then undergoes cell division, and the resulting cells have the diploid chromosome number (2n), representing a combination of genetic material from both the mother and the father.

The chromosomes of the somatic cells do not become only the egg cell or only the sperm; rather, they contribute to the formation of a new diploid organism with a combination of genetic material from both parents.

The complete question is below:

How this somatic cell obtain twice as much chromosomes? Body Cells and Germ Cells Your body cells(somatic) are called diploid cells because they contain two copies of every chromosome. However, the two copies are not exact copies because one is from your mother and one is from your father. Diploid cells can be represented as 2n. In humans, the diploid chromosome number is 46. In addition to body cells, you also have germ cells located in your reproductive organs. Germ cells form gametes, or sex cells. The male sex cells are sperm and the female sex cells are eggs. Unlike body cells, gametes have only one copy of each chromosome. These cells are called haploid and can be represented as n. Human gametes thus contain 23 chromosomes. Only DNA in gametes is passed down to the organism's offspring. The DNA in body cells is not.Sexual reproduction involves the fusion of two gametes of different types, resulting in offspring that are a genetic mixture of both parents. The joining of these two gametes is called fertilization.

a. When fertilization occurs, the nuclei of the egg and sperm fuse to form a single nucleus.

b. The chromosomes of the somatic cells become only to the egg cell.

c. The chromosomes of the somatic cells become only to the sperm.

d. None of the above

Answer:

Each of these colors make the spectrum of light visible to the human eye because each color has a different wavelength.

Explanation:

The cones of our eyes are a type of photoreceptor. The cone is the cells in the retina that respond to light. Each different cone is senstive to different wavelengths. In order to see different colors, the light reflected off of objects must have a specific wavelength in order to trigger one of the cone receptors.

The characteristic of each of these colors that makes this spectrum of light visible to the human eye is each color has a different wavelength.​ The correct option is A.

The distance between two successive crests or troughs of a wave is defined as its wavelength. It is measured in the wave's direction.

The light color spectrum contains seven pure spectral colors. They are red, orange, yellow, green, blue, indigo, and violet in order of decreasing frequency to increasing frequency.

Because of the inverse relationship, the order is reversed by wavelength. Violet is the color with the highest frequency. Red light, with the longest wavelength, is at one end of the spectrum. The shortest wavelength is blue or violet light.

Each of these colors has a different wavelength, which is what makes this spectrum of light visible to the human eye.

Thus, the correct option is A.

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Answer: smokers are 15 to 30 times more able to get cancer than non smokers

Answer:Learning

Explanation:

Answer:

Erosion

Explanation:

The smoothness of the river rock is attributed to prolonged erosion by water and sand, similar to the erosion process that smooths mountain ranges on Earth. The absence of water and ice on the Moon results in its mountains having a naturally smoother appearance.

The smooth surface of the river rock that Juan noticed is most likely the result of erosion by water and possibly sand over a long period of time. This natural process occurs as rocks are tumbled and rolled along the riverbed by the flowing water, causing their surfaces to become smoothed as rough and sharp edges are gradually worn away. The consistent action of water and sand, much like sandpaper, erodes the rock's surface, making it smooth.

This explanation is similar to how mountain ranges can become smooth over time. After mountains are formed by the upthrust of the Earth's crust, erosion plays a key role in shaping their appearance. Factors such as water and ice can wear down the sharp peaks and serrated edges of mountains, leading to smoother, rounded forms. On bodies like the Moon, where there is no water or ice, mountains remain with a smoother appearance due to the lack of these erosive processes.

Answer: true .

Explanation:

Answer: try d

I think it’s d because ecological succession

Is the process in which an environment changes or develops overtime

Since 2000, melting ice from the continent totaled enough to raise sea levels globally by about four tenths of an inch, according to the report which relied on the work of 90 scientists.  With what’s already baked into the atmosphere, faster melting land ice will likely add between 7.5 and 9.8 inches to earlier U.N. estimates by 2100, the report said.  And because of its position downstream, in an area of “preferential excitement,” South Florida could experience rise at the high end as water sloshes around the planet, Kirtman said.  “Think of it as pushing down the ocean [in Greenland]. The ocean is fluid, so it’s going to respond somewhere else and that somewhere else is down here,” he said.  In South Florida, planners already confronting flooding from sea rise have been more aggressive in assessing sea rise.

Explanation:

To increase our chances of getting our recombinant plasmids into bacterial cells, we will use “competent” cells. When cells are “competent,” it means that they are ready to receive plasmids. For the most part, you don't find competent cells in nature; instead, cells have to be made competent in the laboratory.

Answer:

0.01%

Explanation:

If the grass is 100%, then the grasshopper is 10%, the mouse is 1%, the snake is 0.1%, and the hawk is 0.01%. When you go up the trophic levels, you only get 10% of the energy left behind from the last level (in other words, you move the decimal point to the left by 1 place).

The food chain shows the percentage of energy that is available to the hawk which is in the form of 0.1% i.e option A is correct.

The food chain is the web of food that flows a sequence of decreases of energy from the source and the law of energy follows the 10% law as for each and every stage of the ecological system there is drop of 10% energy used by the organisms.

The available energy at the bottom of the food chain is 100% which decreases to 10% in grasshopper is the primary consumer, this energy further decreases to 1% in secondary and tertiary consumers, and finally less than 1% is available for the hawk.

Find out more information about the food chain.

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Answer:

Assist with flood reduction.

Explanation:

The Virginia watershed program was organized and directed the secretary of Agriculture to assist local governments in protecting them against flood during storms within the sub - basins of watersheds. The basis of the Virginia watershed programs is to assist the local governments to protect, restore and enhance local watersheds. It's provide both technical and financial support.

A watershed is an area of land that drains into a lake or river.

a. build dams, d. protect wildlife, e. assist with flood reduction