1.) when you are looking through an aquarium at the fish, is the fish as close as it appears? explain.
Answers
When you are looking through an aquarium, at the fish your fish seem larger or closer than the actual one because light enters into the water and gets refracted. If you look at it from a side view, you will get a slightly different perspective.
Snell's law is characterized as "The proportion of the sine of the point of occurrence to the sine of the point of refraction is a steady, for the light of a given color and for the given sets of media". Refraction is the bowing of a wave when it enters a medium where its speed is unique. The refraction of light when it passes from a quick medium to sluggish medium curves the light beam toward the typical limit between the two media. Subsequently, there are two sorts of refraction, to be specific, normal and artificial refraction. A typical illustration of normal refraction is air refraction. Because of this climatic refraction, the light from the sun arrives on the earth and spreads everywhere. Refraction relies upon the thickness of the medium.
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Related Questions
why is the discharge of hot water into a stream called thermal pollution even if the water is pure?
Answers
The discharge of hot water, even if it is pure, is termed thermal pollution due to the harmful consequences it can have on the ecological balance of the stream.
The primary reason is that the increase in water temperature can disrupt the natural balance and temperature regime of the stream. Aquatic organisms have adapted to specific temperature ranges, and sudden changes in temperature can negatively impact their physiological processes. Higher water temperatures can reduce the dissolved oxygen content, affecting the survival of fish and other aquatic organisms that require oxygen for respiration.
It can also disrupt the reproductive cycles and feeding habits of aquatic species, leading to population decline. Additionally, the elevated water temperature can promote the growth of certain algae and bacteria, altering the composition and biodiversity of the stream. This, in turn, can have cascading effects on the food web and overall ecosystem dynamics.
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chapter 10 Which disease is spread from human to human via droplet infections through coughing or sneezing
Answers
One disease that is spread from human to human via droplet infections through coughing or sneezing is Influenza (flu).
Infected people can spread the influenza virus to others by coughing, sneezing, or talking, which releases respiratory droplets that can spread the illness. People nearby the infected person may inhale these droplets, which could cause the virus to spread.
Seasonal outbreaks and epidemics of influenza are known to occur, and its symptoms can include fever, coughing, sore throats, runny or stuffy noses, body aches, fatigue and occasionally respiratory problems. To lessen the spread of the influenza virus and other respiratory infections, it's crucial to practice good respiratory hygiene which includes covering the mouth and nose when coughing or sneezing and frequently washing your hands.
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lichens may be an association of multiple choice several different fungi. protozoa and bacteria. algae and fungus. virus and algae.
Answers
Lichens may be an association of algae and fungus.
The correct option is C.
What are lichens?Lichens are a complex life form that result from the symbiotic partnership of two different creatures, a fungus and an alga . Lichens can potentially be found on practically any surface (particularly rocks), and unlike algae, which can only grow in aquatic or extremely damp settings (meaning that they grow on other plants). The symbiotic interaction between lichens and algae sometimes resembles a mutualism (a relationship in which both organisms benefit).
What is the function of lichen?Some lichen species are thought to be responsible for turning rocks into soil, aiding in its creation, enhancing its quality, and enriching the soil needed for plant growth. Through the fixation of atmospheric nitrogen, lichens contribute significantly to the nitrogen cycle.
What is a fact about lichen?Small creatures known as lichen are typically found in North American woodlands. They are organisms that are unlike any other on Earth and are neither plants nor animals. Lichen is actually a combination of an algae and a fungus, despite the fact that most people mistakenly believe it to be a sort of moss.
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I understand that the question you are looking for is:
lichens may be an association of:
1.several different fungi
2.protozoa and bacteria
3. algae and fungus
4.virus and algae
Which of the following best represents a function of a lipid within an organism? O Lipids are components of cell membranes All the answer choices are correct O Lipids are parts of proteins O Lipids form a large part of the helical DNA structure
Answers
Answer:
The statement that best represents a function of lipids within an organism is that they are components of cell membranes.
Explanation:
Lipids are biomolecules formed by the binding of fatty acids, important for structure, compound synthesis and energy reserve.
In living beings, one of the most important functions of lipids is to be the main component of cell membranes.
Specifically, phospholipids associate to form a double layer, called lipid bilayer, capable of acting as a semi-permeable membrane, due to its non-polar or hydrophobic character. In this way, membrane lipids fulfill a structural and protective function of the cell and its contents.
Regarding the other options:
Proteins are made up of amino acids, not lipids. Lipids are not constituents of the DNA structure.when the semilunar valves open it signals the onset of the ejection period. the aortic pressure reflects changes in the ejection of blood from which part of the heart?
Answers
The aortic pressure reflects changes in the ejection of blood from left ventricle of the heart.
Heat is four chambered muscular organ in humans. The upper two chambers are atrium and lower two chambers are ventricles. Ventricles dispose the blood received from auricles into different parts based on the oxygen level. The semilunar valves are cusps or pocket like structures present to prevent blood backflow.
There are two such valves namely aortic and pulmonary valves. Aortic valve connects left ventricle with different parts of body while pulmonary valve connects right ventricle and pulmonary artery. Since aorta is directly connected to left ventricle, thus aortic pressure reflects changes from it.
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Which of the following segments of double-stranded DNA requires the highest temperature to separate the strands?
A). 5'-AAAATTTT-3'
3'-TTTTAAAA-5'
B). 5'-CGAATAGC-3'
3'-GCTTATCG-5'
C). 5'-ATGCATGC-3'
3'-TACGTACG-5'
D). 5'-CGATTAGC-3'
3'-GCTAATCG-5'
E). 5'-GCGCGCGC-3'
3'-CGCGCGCG-5'
Answers
The segment of double-stranded DNA that requires the highest temperature to separate the strands is option E) 5'-GCGCGCGC-3' / 3'-CGCGCGCG-5'.
This is because it consists of the greatest number of hydrogen bonds between complementary base pairs, making it more stable and requiring more energy to break the hydrogen bonds and separate the strands.
The stability of double-stranded DNA is primarily determined by the number of hydrogen bonds formed between complementary base pairs. Adenine (A) forms two hydrogen bonds with thymine (T), while cytosine (C) forms three hydrogen bonds with guanine (G). The more hydrogen bonds present, the higher the energy required to break them and separate the DNA strands.
In option E) 5'-GCGCGCGC-3' / 3'-CGCGCGCG-5', each base pairs with its complementary base, resulting in eight hydrogen bonds in total. This segment has the highest number of hydrogen bonds among the given options, making it the most stable and requiring the highest temperature to separate the strands.
In comparison, options A), B), C), and D) have fewer hydrogen bonds between complementary base pairs, making them less stable and requiring lower temperatures to denature the DNA.
Therefore, option E) 5'-GCGCGCGC-3' / 3'-CGCGCGCG-5' is the segment that requires the highest temperature to separate the DNA strands.
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lecting all
A model of one stage of mitosis is shown here. Draw conclusions about what happens in the NEXT Stage of mitosis
the answers that apply.
)
A)
chromatids will separate
B)
spindle fibers wilU form
chromosomes will condense
D)
nuclear membrane will disappear
E)
chromatids will move to opposite poles
Answers
I have a test tomorrow on cells any tips on how i can get a good score
Answers
Answer:
Studying your notes on cells by reading them out loud. Also if you make yourself flash cards it's really useful.
Answer: Of course! Well first off make sure to study, a goal to a good grade is studying, Maybe look over some old things, or things written in your notebooks. You also want a good nights sleep! I personally stress the night before a test but relaxing listening to music should help. And finally, Study an hour before it and focus. You always have to focus on tests for good grades. Anyways, If you need more tips just ask! Good luck on your test!
Explanation:
Wishing you luck!
Crickets, grasshopper, cockroaches, and dragonflies are examples of organisms that go through incomplete metamorphosis. A physical characteristic that distinguishes nymph from the other two stages would be that it is-
A wingless
B worm-like
C colorless
D developed
Answers
Answer:
A
Explanation:
The answer is Wingless I think.
The accumulation of niacin, as shown by a yellow reaction on the test strip is one of the chief characteristics to identify Mycobacterium tuberculosis. Another rarely encountered Mycobacterium species that also accumulates niacin is:A. Mycobacterium gordonaeB. Mycobacterium simiaeC. Mycobacterium xenopiD. Mycobacterium fortuitum
Answers
The accumulation of niacin is an important characteristic in the identification of Mycobacterium tuberculosis, as it produces a yellow reaction on the test strip.
However, another Mycobacterium species that also accumulates niacin is Mycobacterium gordonae. This species is rarely encountered, but its niacin accumulation makes it an important consideration in differential diagnosis. It is also important to note that Mycobacterium simiae, Mycobacterium xenopi, and Mycobacterium fortuitum do not accumulate niacin, making them easier to differentiate from Mycobacterium tuberculosis and Mycobacterium gordonae.
Overall, the accumulation of niacin is a key characteristic in identifying specific Mycobacterium species and is used in conjunction with other diagnostic tests to accurately diagnose and treat patients with mycobacterial infections.
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Researchers recently discovered a gene in humans that previously was unknown to science. Which statement best
explains why the gene probably was not discovered much sooner?
A. The gene only recently evolved in humans.
B. The technology used to study genes is still being developed.
C. Scientists were not interested in genes until a few years ago.
D. Scientists were sure they had already discovered every possible gene.
Answers
Answer:
B. The technology used to study genes is still being developed.
Explanation:
Advances in technology, such as genome sequencing, have allowed scientists to study genes in more detail and discover new genes that were previously unknown. Prior to these technological advancements, the tools available to scientists were not advanced enough to detect certain genes. Additionally, with the growing amount of genetic data available and increasing computational power, we are now able to identify previously uncharacterized genes.
How is genetic variation passed to offspring?
Answers
Answer: through somatic cells or inherited through the germaine.
Explanation: My best guess
of the four possible explanations for the origin of platyrrhines, which one is the most accepted currently? group of answer choices platyrrhine ancestor originated in africa and came to south america by land by crossing antarctica. platyrrhines originated independently of catarrhines. platyrrhine ancestor originated in africa and then migrated across the atlantic ocean to south america. platyrrhine ancestor migrated south from north america.
Answers
The Platyrrhimne originated in Africa is the correct answer
Platyrrhines are thought to have originated in Africa, from where they probably spread to South America in the middle or late Eocene. The oldest fossil record, described as Perupithecus, was recently discovered in western Peru (Santa Rosa) and is estimated to date back to the late Eocene. Evidence of an African origin is supported by the exceptional morphological similarity between Perupithecus and Talahpithecus of the late North African Eocene, which share nearly identical diagnostic characteristics such as cusps, ridges, and pelvises in the upper molars. These results support the hypothesis of a transatlantic spread event during the Eocene, likely by rafting on booming forest islands.
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How has technology such as telescopes, satellites, computers, and GPS units affect the scope of scientific discovery?
Answers
Answer:ghhjhjhkjhkjkjhkhExplanatio
After photosynthesis is finished inside of a plant, six molecules of
oxygen have been produced, as well as a single molecule of C6H12Os
other wise known as
A. carbon dioxide.
B. water.
C. oxygen.
D. glucose.
Answers
Which of the following techniques was most helpful to Watson and Crick in developing their model for the structure of DNA?
A Radioactive labeling
B Electrophoresis
C Cloned DNA
D Transgenic animals
E X-ray crystallography
Answers
Answer:
E. X-ray crystallography was most helpful to Watson and Crick in developing their model for the structure of DNA.
Explanation:
X-ray crystallography was most helpful to Watson and Crick in developing their model for the structure of DNA. X-ray crystallography is a technique that involves using X-ray diffraction patterns to determine the atomic and molecular structure of a crystal. Watson and Crick used X-ray crystallography data from Rosalind Franklin and Maurice Wilkins to develop their model for the structure of DNA. They used this data to create a model that showed the structure of DNA as a double helix, which is now known to be the correct structure of DNA.
why does the rate of respiration change as the amount of carbon dioxide
Answers
Increases in carbon dioxide concentration cause a slowdown in plant respiration as stomata would close as a result of a high CO2 concentration.
High levels of carbon dioxide, or CO2, often slow down respiration rates, mostly due to a direct influence, according to many evaluations of the research.
People are enhancing the natural greenhouse effect by increasing the amount of carbon dioxide in the atmosphere, which raises the earth's temperature.
Carbon dioxide alone accounted for roughly two-thirds of the overall heating impact of all human-produced greenhouse gases in 2021, according to data by the NOAA Global Monitoring Lab.
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The correct question is
why does the rate of respiration change as the amount of carbon dioxide increases?
of 4
JU
Question 1
Which of the following compounds can be classified as lipids? Select all that apply.
A) peptides
B) steroids
C) saturated fatty acids
D) nucleic acids
E) disaccharides
OF) phospholipids
G) enzymes
DH) unsaturated fatty acids
Answers
The following compounds can be classified as lipids: steroids, saturated fatty acids, phospholipids, unsaturated fatty acids.
WHAT ARE LIPIDS:
Lipids are one of the four biomolecules in nature; the other three being proteins, nucleic acids and carbohydrates. Lipids are composed of long chains of carbon, hydrogen and oxygen. They are insoluble in water.Lipids consists of sterols, phospholipids, fats, triglycerides, unsaturated and saturated fats etc.Therefore, the following compounds can be classified as lipids: steroids, saturated fatty acids, phospholipids, unsaturated fatty acids
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How could life on Earth change if both Carbon Dioxide and Ozone levels began to decrease? Describe at least two ways life would be impacted if this change were to occur.
Answers
Answer:
Increase occur in skin diseases and decrease occurs in the Earth's average temperature.
Explanation:
If both Carbon Dioxide and Ozone levels began to decrease, increase occur in skin diseases and decrease occurs in the Earth's average temperature. The decrease in ozone levels allows more UV radiation to reach the Earth's surface which lead to various diseases such as skin cancer, cataracts, and weakened immune systems. The atmospheric carbondioxide gas is responsible for the increase of surface temperature by trapping reflected solar radiations so decrease in carbondioxide concentration will leads to lower surface temperature.
the drug which is used to reduce pain is ..,....
i) opium ii) bhang iii) hashish iv) marijauna
Answers
Answer:
hashish
Explanation:
opinum
Explanation:
because it is used to make pain nubbing/pain killer
Which of the following is NOT a characteristic of RNA?
The sugar that makes up the foundation of the nucleotides is ribose, not deoxyribose
RNA forms a double helix.
RNA has uracil in place of thymine.
RNA travels outside of the nucleus.
Answers
Answe:RNA는 핵 밖으로 이동합니r다.
Explanation:
The genes for freckles is dominant over genes for no freckles. a man with freckles marries a
woman without freckles. they have 12 children who all have freckles. what are the most
likely genotypes of the man, his wife, and all the children?
Answers
Only 75% of the total progeny out of 4 have a chance of having freckles.
What does the term genotype mean?The term "genotype" broadly refers to an organism's genetic make-up; in other words, it characterises an organism's whole gene pool. The phrase can also be used to describe to the alleles, or different forms of a gene, that an organism carries in a more specific meaning.
It is more common to have freckles than not. In the event that a man has freckles marries a woman who has freckles. An organism with freckles has brown dots all over his body. Freckles are symbolized by the letter F (dominant), and n on freckles is f. (recessive). Even in heterozygous form, it will outcompete "f." In the first progeny, both parents result in the following genotypes: FF (homozygous dominant), Ff (heterozygous dominant), Ff (heterozygous dominant), and Ff (homozygous recessive). Therefore, only 75% of the total progeny out of 4 have a chance of having freckles.
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Could there be a frameshift mutation that would not affect the structure and function of the resulting protein?.
Answers
It is possible the emergence of a frameshift mutation that does not affect the structure of a protein, but it will invariably modify its structure.
Happy Holidays!!
Answer:fqwfee
Explanation:fqqfewfqrqf
write four observable differences between rat and toad
Answers
Answer:Frog or toad: how to tell the difference
Skin
If there was ever a tell-tale sign to indicate which amphibian you are looking at, it’s the texture of their skin. Toads are warty-looking, covered in little lumps and bumps, while frogs are sleek and smooth. Toads also virtually always have dry skin, whereas frogs look wet even when they are out of the water.
Location
If you’ve spotted an amphibian making its way along a pavement or ambling through some grass, chances are it’s a toad. Toads cope much better with dry conditions than frogs, as their skin is more waterproof. Frogs lose moisture a lot more easily, and so are rarely seen too far away from water, which explains why they always look moist.
Legs
Frogs have long legs, longer than their head and body, which are made for hopping. Toads, on the other hand, have much shorter legs and prefer to crawl around rather than hop.
Explanation:
Answer:
1. color.
2. texture and or roughness. the rat will be smooth and the toad will feel rough against the skin.
3. growth/ size. rats can grow to be huge and toads tend to stay kind of small.
4. rat has a tail and toad does not.
extra 5. the preference of where to create a home
Explanation:
see above
How does the sun cause currents in the ocean?
OA. It heats polar water more than equatorial water, which means the
water at the poles is less dense and rises toward the surface.
B. It provides less energy to the water at the poles, which causes
polar water to condense, pulling warmer water away from the
equator.
C. It provides more energy to the water at the equator, which causes
equatorial water to evaporate, pulling warmer water away from the
poles.
D. It heats equatorial water more than polar water, which means the
water at the poles is denser and sinks toward the bottom
Answers
Answer:
C. It provides more energy to the water at the equator, which causes equatorial water to evaporate, pulling warmer water away from the poles. The sun causes currents in the ocean by providing more energy to the water at the equator. This causes the water to evaporate, which creates a low-pressure system that draws warmer water away from the poles towards the equator. This process is known as the Coriolis Effect.
Explanation:
give me brainiest
Time zones are weird cause It's 2 A.M. in your car ,Windows down, I pass my street
The memories start
Anyway, what's symbiosis?
Answers
Answer:
interaction between two different organisms living in close physical association, typically to the advantage of both.Compare with antibiosis.
a mutually beneficial relationship between different people or groups.
Explanation:
The condition in which an organism has extra sets of chromosomes :
Answers
The condition in which an organism has extra sets of chromosomes is known as polyploidy. This has been observed in many examples of plants, including crop plants such as bananas, limes, and strawberries.
As scientists consider it as a chromosomal mutation that may provide benefits to an organism. However, in contrast, having extra sets of chromosomes can also lead to infertility in some organisms as described in 2. Meiosis is the type of cell division that reduces the number of chromosomes in gametes, as described in 3 to maintain the diploid state of somatic cells in sexually reproducing organisms.
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The condition in which an organism has extra sets of chromosomes is known as trisomy.
Errors in meiosis I usually cause Aneuploidy, importantly maternal meiosis I. With advanced maternal age generally errors of maternal meiosis I are associated .Once thought to involve mostly mis-segregation of whole chromosomes, it is now clear that chromatid errors are an equally prevalent cause of maternal meiotic errors.
20 Irrespective, the cytologic mechanism involves decreased or absent meiotic recombination.21 In trisomy 13 and trisomy 21, 90% of these maternal cases arise at meiosis I. Almost all trisomy cases arise in maternal meiosis I. An exception is trisomy 18, in which two thirds of the 90% of maternal meiotic cases arise at meiosis II.
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what is the main idea of Storing Energy
Answers
Answer:
Energy storage is the capture of energy produced at one time for use at a later time to reduce imbalances between energy demand and energy production.
Lactoferrin and transferrin are used by the body to bind iron, keeping it from microbes that might otherwise colonize. Pathogenic microbes get around this limitation by doing which of the following?
Producing their own iron binding molecules known as siderophores
Stripping the iron bound to lactoferrin/transferrin molecules
Answers
Lactoferrin and transferrin are proteins that the body uses to bind iron, preventing microbes from colonizing it. Pathogenic microbes circumvent this restriction by synthesizing their own iron-binding molecules known as siderophores and removing the iron-bound lactoferrin/transferrin molecules.
Lactoferrin, as known or named at another time or place as lactotransferrin, is a multifunctional protein of the transferrin kin. Lactoferrin helps manage by what method well iron is absorbed into the party from the entrails. It still appears to protect against contaminations from microorganisms, viruses, and fungi.
The lactoferrin in breastmilk is hoped to help keep feelings-fed babies against contaminations. A Pathogenic microbe is an animal that is worthy of precipitating afflictions in a host (woman). The World Health Organization (WHO) listed hazards that concede the possibility show in drink potentially hurtful microorganisms, viruses, poisons, barnacles, and chemicals.
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What is the main function of the digestive system?
A. moving your blood
B. Bringing oxygen into the body
C. Breaking down food
Answers
Answer:
C Breaking down food is the answer