B.
Viruses are classified as biological agents instead of a living things, $& they are only made of genetic material.
Viruses are non-living disease agents that can only reproduce by infecting a host cell, making B. Viruses the correct answer to the question about which group is a non-living agent of disease.
Explanation:The non-living agent of disease that can only reproduce by hurting its host among the options provided is B. Viruses. Unlike bacteria, fungi, and protists, which are living organisms, viruses consist of DNA or RNA encapsulated in a protein coat and are incapable of reproducing or carrying out metabolic processes on their own. They require a host cell's machinery for replication.
Viruses are known for causing diseases like colds, the flu, and more serious conditions such as hepatitis and AIDS. While some microorganisms like bacteria and protozoa can be combated with antibiotics and have free-living forms, viruses are entirely dependent on a host for their life cycle and do not respond to antibiotics. Antiviral drugs can treat viral infections since they are designed to target the specific parts of the virus's life cycle that occur within human cells.
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Please help! I am stuck on this question!
Answer:
Supposing fox, bird, cactus are the answers to choose,
BIRD is definitely your answer!
Hope this helps!!!
[tex]Sofia[/tex]
Answer:
bird
Explanation:
NEED HELP ASAP PLZ!!
In addition to surface tension what's responsible for driving ocean waves?
A. The coriolis effect
B.Thermohaline Circulation
C. Centrifugal force
D. Drag from wind
Answer:The weather can create a wave. Such as the wind. Aslo the moon plays a big part in creating tides.
Explanation:
Answer: Option 'D' is correct.
Explanation:
In addition to surface tension, drag from wind is responsible for driving ocean waves.
The significant feature of waves is wind. And speed of wind determine the frequency of waves in oceans.
So, drag from wind helps in driving the ocean waves.
Hence, option 'D' is correct.
The primary minerals of an igneous rock you are examining are quartz, feldspar, and mica. This rock is probably
A) basalt
B) gabbro
C) granite
D) peridotite
40 POINTS PLEASE HELP!!!!
Granite, those black parts I believe are obsidian, a giveaway for granite because it’s a metamorphic rock
Answer:
Granite.
Explanation:
Those black parts are obsidian. That is a giveaway for granite because it’s a metamorphic rock.
A hiker has become overwhelmed with heat while walking in the Grand Canyon. The hiker's body goes into overdrive to keep cool in the heat. The hiker needs to hydrate his or her cells. What process is used to regulate homeostasis?
A. Hydration B. Cellular transport C. Passive transport D. Balanced equilibrium
Answer:
A. Passive transport
Explanation:
Cell transport is the exchange of substances through the plasma membrane
The passive transport allows the molecular passage through the membrane in favor of the gradient of concentration or electrical charge, that is to say that it transports values of greater concentration at lower concentration, as it happens in the osmosis process where a transport of molecules of water mediated by specific proteins in favor of its concentration gradient.
Answer:
Cellular transport
Explanation:
a gene cannot react chemically and form a trait without the proper what
Answer:
Enzyme
Explanation:
Enzymes are the bio-catalyst that serve to accelerate the metabolic reactions occurring in a living cell. All the metabolic reactions of organisms are catalyzed by enzymes. Each metabolic reaction is catalyzed by specific enzyme. Absence of that particular enzyme leads to absence of the respective product. Since genes code for protein which regulate the specific trait, absence of enzyme does not allow the expression of that trait.
Example: Absence of enzymes for chlorophyll synthesis would lead to absence of chlorophyll from leaves of the green plants.
(GOING TO GET SUSPENDED IF I DONT ANSWER QUICKLY)
How are pupae, larvae, and nymphs different
Larva is a bed bug that has not been born yet. Nymph is a baby bed bug they are usually white and get browner as they get older.
A planet has an orbital period of 3.24 years . What is the average distance of the planet from the sun? A.2.19
Answer:
5.83 AU is the answer to your question
Explanation:
Answer:
2.19 AU
Explanation:
because teacher told me
Which part of sunlight makes up the visible spectrum? Check all that apply. blue green indigo infrared ultraviolet
Answer: Blue, green and indigo.
Explanation: The visible spectrum of the electromagnetic radiation includes 7 colors and besides these 7 colors human eye cannot see other colors.
So the blue, green and indigo lies under the visible spectrum. A typical human eye can detect the wavelength from 380 to 740 nanometers.
Before this wavelength and after this wavelength human eye cannot see anything.
The visible spectrum of sunlight includes the colors blue, green, and indigo. Infrared and ultraviolet are part of the wider electromagnetic spectrum, but they are not visible to the human eye. Other species can perceive these ranges that are outside of the human range.
Explanation:The visible spectrum of sunlight includes the colors we can see, namely: blue, green, and indigo. It's important to understand that the visible spectrum is a portion of the larger electromagnetic spectrum. This visible spectrum, perceived by human eyes, is associated with wavelengths that range from 380 to 740 nm. However, the divisions between infrared, visible, and ultraviolet light, as well as those between the seven rainbow colors (red, orange, yellow, green, blue, indigo, violet), are not distinct. In the context of the question, the components of sunlight that make up the visible spectrum are blue, green, and indigo.
On the other hand, infrared light and ultraviolet light are part of the overall electromagnetic spectrum but are not visible to the human eye. Therefore, infrared and ultraviolet do not make up part of the visible spectrum of sunlight that we can see. Species such as honeybees and some snakes can perceive the ultraviolet and infrared ranges, respectively, which are outside of the human range.
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Which level of a food chain breaks down dead organisms at every other level?
It should be the trophic level..
DNA and RNA are structurally similar but also have some notable differences. RNA has uracil in place of thymine as one of its bases, uses ribose in place of deoxyribose, and
Answer:
D: Often exists as a single stranded molecule
Explanation:
Answer Choices:
○ A. is a polymer of nucleotides and amines.
○ B. often exists as a single-stranded molecule.
○ C. has a different phosphate group in its backbone.
○ D. can't form base pairs.
Answer:
RNA has uracil in place of thymine as one of its bases, uses ribose in place of deoxyribose, and... B. often exists as a single-stranded molecule.
Reference:
3.2 Examine the structure of DNA and its function with genetic inheritance
DNA's Structure and Function in Genetic Inheritance READING ASSIGNMENT
◦◦◦
"Additionally, unlike DNA, RNA can be present as a single strand which folds onto itself..." (PDF pg. 54)
#pennfosternotes
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Which describes the relationship between a genotype, a phenotype, and an organism’s experiences?
Answer:
A phenotype is the physical appearance of a trait in an organism, which may be influenced by the organism's experiences. ... A phenotype is an organism's allele combination. A genotype is the physical appearance of a trait in an organism, which may be influenced by the organism's experiences.
Explanation:
Phenotype is like the appearance like color genotype is like the dna off is what’s it’s made of
A____ is a group of 3 nitrogen based on a mRNA molecule that carries the code for a specific amino arid. A____ is a set of 3 nitrogen bases on a tRNA molecule that matches a codon on an mRNA molecule
A codon is a group of 3 nitrogen bases on a mRNA molecule that carries the code for a specific amino arid. An anticodon is a set of 3 nitrogen bases on a tRNA molecule that matches a codon on a mRNA molecule.
A codon is a sequence of three nucleotides on mRNA that represents a specific amino acid, while an anticodon on tRNA matches this sequence. The genetic code is the set of rules dictating how codons are translated into proteins. Codons and anticodons play crucial roles in the protein synthesis process.
Explanation:A codon is a group of 3 nitrogen bases on an mRNA molecule that carries the code for a specific amino acid. Similarly, an anticodon is a set of 3 nitrogen bases on a tRNA molecule that matches a codon on an mRNA molecule. Each codon consists of three nucleotides, usually abbreviated with the letters A, U, G, and C. In the mRNA, uracil (U) is used whereas DNA contains thymine (T). The mRNA molecule instructs a ribosome to synthesize a protein according to the genetic code represented by these codons.
The genetic code is a set of rules by which information encoded in the genetic material (DNA or mRNA sequences) is translated into proteins by living cells. This information is carried by the sequence of codons in mRNA. For example, the codon AUG not only codes for the amino acid methionine but also serves as a start signal for translation. Moreover, there are 64 possible codons, more than the number of amino acids, which allows for some redundancy; several codons can specify the same amino acid. In addition, some codons function as stop signals to end protein synthesis.
A new species of bacteria is discovered that lives deep in the ocean sediments, where no oxygen is present. When scientists bring it to the surface and expose it to air, the bacteria cannot survive. Which phrase would best describe this organism?
Final answer:
The bacteria that cannot survive when brought to the surface and exposed to air can be described as strict anaerobes. They lack cellular defenses against oxidative stress and need anaerobic conditions to survive. In deep ocean sediments, where no oxygen is present, they can thrive.
Explanation:
The bacteria that cannot survive when brought to the surface and exposed to air can be described as strict anaerobes. These bacteria live in environments lacking oxygen and use anaerobic respiration or fermentation to survive. Oxygen can be lethal for them because they lack cellular defenses against oxidative stress. They are able to live deep in the ocean sediments where no oxygen is present, but cannot survive in the presence of oxygen.
Provide a specific example of photosynthesis and cellular respiration working together.
Answer:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water
Final answer:
Photosynthesis and cellular respiration work together in the carbon cycle, where plants use carbon dioxide and water to produce glucose and oxygen through photosynthesis, and then the glucose is used in cellular respiration to produce ATP along with the release of carbon dioxide and water.
Explanation:
Photosynthesis and cellular respiration are two processes that work together to store and release energy in living organisms. An example of how they work together is through the carbon cycle. During photosynthesis, plants use carbon dioxide and water to produce glucose and oxygen. The glucose produced is then used in cellular respiration to produce ATP, and in the process, carbon dioxide and water are released as byproducts. This cycle ensures the continuous recycling of carbon and the availability of oxygen for organisms.
A dense group of bacteria that are difficult to treat with antibiotics is called
A. a biofilm.
B. lysogenic.
C. a plasmid conjugate.
D. parasitic.
Answer:
A
Explanation:
Biofilms are a colony of bacteria that secrete a layer of extracellular matrix (made of polymeric substances of proteins or polysaccharides) that is hard to penetrate with antibiotics. The bacteria in the biofilm also function in coordination and are able to adapt to different factors hence making them hard to eradicate. They can be found in the inside surface of sewage pipes.
Answer:
A. a biofilm
Explanation:
Biofilms are a colony of bacteria that secrete a layer of extracellular matrix (made of polymeric substances of proteins or polysaccharides) that is hard to penetrate with antibiotics. The bacteria in the biofilm also function in coordination and are able to adapt to different factors hence making them hard to eradicate. They can be found in the inside surface of sewage pipes.
PENN
Mike always has to adjust the blinds in his office because of the sunlight. What could be a solution to develop a better set of window blinds? A) install a timing mechanism and set it to open or close at a specific time B) install a sensor that monitors the amount of sunlight C) buy better window blinds D) buy darker window blinds
Answer:
B
Explanation:
A sensor, usually photoelectric, that monitors the intensity of sunlight is better because, in case of high intensity, the blinds are automatically closed or almost closed allowing little sunlight to enter through and light up the office. In case of low-intensity sunlight, the blinds automatically open or are more open allowing much of the sunlight from outside. This way Mike does have to keep adjusting his blinds.
Answer:
B
Explanation:
Based on cell theory, why is a virus considered non-living? A) A virus does not have a nucleus. B) A virus does not contain genetic material. C) A virus is too small to be considered a cell. D) A virus cannot reproduce itself without a host cell.
answer is D) a virus cannot reproduce itself without a host cell.
27. Which of the following might occur as a result of plastic trash accumulating in the ocean?
A. Turtles mistake clear plastic bags for jellyfish and die of intestinal blockage.
B. Sea birds are strangled by plastic six-pack rings.
C. Sea mammals such as seals become entangled in clear plastic fishing lines and drown,
D. All of the above
D all of the above. 90% of the time answer with all of the above will be the answer
Water pollution is the addition of unwanted harmful pollutants in the water bodies and sources. It mainly occurs due to human actions.
The following points can take place due to the accumulation of plastic bags in the ocean:
Sea birds can get strangled.Turtles can mistake them for food which leads to their intestinal blockage and they will eventually die.Sea mammals can get entangled in these plastic bags.The accumulation of these plastic wastes in a water body will aggravate climate crisis and also disrupt the ecosystem of the water bodies.
Therefore, all the above mentioned point are the result if plastic bags are dumped in the ocean.
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What are the five steps of genetic expression?
Answer:
1. Transcription – conversion of DNA to RNA
2. Post-transcriptional modifications
3. RNA transport
4. Translation or protein synthesis
5. Protein folding
1 Initiation. The DNA molecule unwinds and separates to form a small open complex. RNA polymerase binds to the promoter of the template strand.
2 Elongation. RNA polymerase moves along the template strand, synthesising an mRNA molecule. In prokaryotes RNA polymerase is a holoenzyme consisting of a number of subunits, including a sigma factor (transcription factor) that recognises the promoter. In eukaryotes there are three RNA polymerases: I, II and III. The process includes a proofreading mechanism.
3 Termination. In prokaryotes there are two ways in which transcription is terminated. In Rho-dependent termination, a protein factor called "Rho" is responsible for disrupting the complex involving the template strand, RNA polymerase and RNA molecule. In Rho-independent termination, a loop forms at the end of the RNA molecule, causing it to detach itself. Termination in eukaryotes is more complicated, involving the addition of additional adenine nucleotides at the 3' of the RNA transcript (a process referred to as polyadenylation).
4 Processing. After transcription the RNA molecule is processed in a number of ways: introns are removed and the exons are spliced together to form a mature mRNA molecule consisting of a single protein-coding sequence. RNA synthesis involves the normal base pairing rules, but the base thymine is replaced with the base uracil.
Which two statements are true for the leading strand in DNA?
Answer: The correct options are statement first and fourth that is -
It is synthesized toward the replication fork and it is synthesized in the 5′ to 3′ direction
Explanation: Leading strand in DNA is the strand of new DNA being synthesized in the same direction where the replication fork is moving. The movement of replication fork allows the access of template for the new DNA.
The DNA synthesis is continuous in the leading strand. It is synthesized in the 5' to 3' as DNA synthesis always takes place in this direction. This is because dNTP ( deoxyribonucleoside triphosphate) provides free 3' OH group where new dNTP can be added by the enzyme DNA polymerase.
Answer:
It is synthesized in the 5′ to 3′ direction.
It is synthesized toward the replication fork.
Explanation:
just took the test got it right
Plants use the sugars they produce during photosynthesis to create which molecule
Answer:
sugar molecule
Explanation:
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.
Teak, a highly prized tropical hardwood, is used extensively for outdoor furniture. Unfortunately, teak is grown in only a few locations throughout the world and native trees are becoming scarce due to repeated harvesting and the clear-cutting of forests. Logging teak forests disrupts the natural habitat of many other species and reduces local biodiversity. Foresters, seeking a reasonable solution to this problem, might consider ALL BUT
A) replanting areas where teak has been already harvested.
B) cultivating teak on farms for harvesting instead of using native trees.
C) growing farm crops in greenhouses instead of on land previously home to teak trees.
D) finding another species to replace teak to some degree to reduce teak harvesting.
Hey guys!
Just wanted to let you know, like the other user commented, C is the correct answer!
A reasonable solution to this problem might consider all but only Growing farm crops in greenhouses instead of on land previously home to teak trees.
What are Teak plants?
The tick plant is called as king of timbers. It grows as a very huge tree and provides excellent quality wood. Its wood is mainly used in making furniture.
Teak is prized hardwood and is used for outdoor furniture. Teak is grown in only a few locations throughout the world and is a native tree becoming scarce due to repeated harvesting.
Logging teak forests disrupts the natural habitat of many other species and it reduces local biodiversity as well. Forests are a reasonable solution to this problem they consider replanting areas where teak has been already harvested.
Cultivating teak on farms for harvesting instead of using native trees, and finding another species to replace teak to some degree to reduce teak harvesting.
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Select the correct pairing of an event with its effect on the Earth's surface.
A.
flood: a rock mass sliding down a mountainside onto the Earth's crust
B.
tornado: masses of ice that move soil across the Earth's crust
C.
glacier: a piece of rock collides with the Earth's crust
D.
volcano: the eruption creates new land on the Earth's crust
Answer:
D. volcano: the eruption creates new land on the Earth's crust
Explanation:
The volcanic activity is crucial for the formation of new crust on the planet, be it oceanic or continental one. Through the eruptions, the volcanoes release pyroclastic material, and more importantly and in much higher amounts, they release lava. The lava quickly starts to cool off on the surface of the Earth as the temperature is much lower. As it cools off, the lava becomes igneous rocks, more specifically extrusive igneous rocks. These new rocks are actually the new crust on the Earth's surface, thus increasing the land mass.
Why is it true to say that exhaled air is acidic?
Answer:
Because it contains carbonic acid
Explanation:
Carbonic acid is made from dissolving carbon dioxide in water. Since carbon dioxide is exhaled in the lungs, and the exhaled air is moist due to the presence of water molecules from the alveoli, then the carbon dioxide gas will be dissolved in the exhaled air’s moisture rendering it slightly acidic.
how do regulatory proteins of the cell cycle help maintain homeostasis
Answer: They make sure that the body's pH, glucose, and iron are all at their proper levels.
Explanation:
HELP ASAP PLZ !!!!!
Answer: The answer I would go with C. It is a well - tested explanation
Explanation:
Because....
It could be the first one as well, but I believe this is a better choice because the paragraph shows the person is testing on child development but it also gives a valid explanation, which is the reason why I say the answer is C.
* Hopefully this helps:) Mark me the brainliest:)!!
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In your own words, explain the role of scientific investigation in the development of the Theory of Adaptation.
Answer:
The scientific investigation is the systematic approach of the scientists to answer the questions about the world. It is applied almost all of the theories including the Theory of Natural Selection. Darwin's theory of evolution is a result of scientific investigation. In this theory, they investigate by observing the distribution of species.
Answer:
The scientific theories can be framed on the basis of scientific evidence as well as their proofs.
To frame any scientific theory one has to follow the scientific procedure to reach the conclusion one of which is an investigation to provide the best evidence to support the theory.
The theory of evolution was proposed by Charles Darwin which stated that organism evolves from ancestors or descent with modifications. In favor of his theory, he presented the remnants of the past organism as well as the collected specimens form his voyage.
Are genetically modified organisms are used to make medicines as well as agriculture crops
Answer:
Medicines is a high possibility, but agriculture is a yes.
Explanation:
Which of the following plant organs is always included in the root system of a plant?
A.
roots
B.
leaves
C.
stem
D.
all of these
Answer: the answer is a
Explanation:
Answer: Option A
Explanation:
The plant organs that is always included in the root system is roots.The root system in the plants consists of the structures that are below the ground.
Such structures are tubers, roots, rhizomes, et cetera. The main function of root system is to supply water, hormones, minerals to the plant and within the plant.
The roots also provide anchorage to the plants by binding tightly to the soil particles.
Which of the following is a producer
I think the answer is G and/or H
A producer in biology is an organism, like a plant or algae, that creates its own food through photosynthesis, forming the base of the food chain.
Explanation:In biology, a producer is an organism that creates its own food through the process of photosynthesis. They form the base of the food chain and are typically plants, algae, or photo-bacterium. These producers take sunlight, carbon dioxide, and water to create glucose, a type of sugar that they use for energy, and oxygen, which they release into the atmosphere. An example of a producer is a tree, such as an oak or a maple tree. Tree, plants and algae are all able to use the sun's energy to create food for themselves.
A producer is an organism that makes its own food through photosynthesis or chemosynthesis. In biology, plants are the primary examples of producers as they use sunlight, carbon dioxide, and water to produce glucose and oxygen through photosynthesis. Other examples of producers include algae and certain bacteria.
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