Answer:
HIV is the virus that causes Aids
last stage is Full blown stage
Tại sao DNA mạch đôi hấp thụ ánh sáng yếu hơn DNA mạch đơn
Answer:
DNA sợi đôi hấp thụ kém mạnh hơn vì tương tác xếp chồng giữa các base.
Explanation:
Quá trình này được gọi là sự thay đổi siêu sắc tố. Các gốc purine và pyrimidine trong DNA hấp thụ tia cực tím.
An organism’s scientific name consists of which TWO taxonomic groups? (Select the TWO correct answers).
Class
Domain
Genus
Species
Kingdom
Phylum
Order
Family
Answer:
Scientists use a two-name system called a Binomial Naming System. Scientists name animals and plants using the system that describes the genus and species of the organism. The first word is the genus and the second is the species
An organism’s scientific name consists of which two taxonomic groups, genus, and species. The correct options are c and d.
What are taxonomic groups?Taxonomic groups are the groups that contain different groups in which the organism are divided. These are arranged from higher to lower groups. The highest group is the kingdom.
Kingdoms are divides of the different organisms of the earth. Taxonomy is organizing different organisms in a line so, that it will be easy for their studying.
The two taxonomic groups that come in last are genus and species. Genus and species make the scientific name of the organism. The genus contains animals that are most similar to each other. Species are similar organisms, that can breed with each other.
Therefore, the correct options are c, Genus, and d, Species.
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Which forms of transport across a cell membrane do NOT require the use of ATP?
Passive transport is the movement of substances across the membrane without the expenditure of cellular energy.
Under what circumstances would molecular motion stop?
Answer:
All molecular motion stops at 0 degrees Kelvin or -273.15 degrees Celsius.
Explanation:
It is based on molecular motion, with the temperature of 0K, also known as absolute zero, being the point where all molecular motion ceases. The freezing point of water on the Kelvin scale is 273.15K, while the boiling point is 373.15K
why don't all cells have a tail
Answer:
Explanation:
As microscopes improved, biologists discovered that all kinds of cells have beating tails. They are found not only on free-living “animalcules” and sperm, but also on the cells inside multicellular organisms.
Which of the following statement is true about recombinant DNA
Answer:
It combines genes from two different organisms.
How are phospholipids and DNA similr
Answer:
I think answer is liquid vesicles concentration was 0.3 mg/ ml
How is loss of biodiversity connected to extinction of organisms?
Answer:
In an ecosystem, everything is connected. All ecosystems have some form of food chain and symbiosis. This means that animals rely on each other for life. If one animal were to die then others would be negatively affected. Overall, this means that when biodiversity is lost it becomes harder for organisms to survive. For example, pandas rely on bamboo to survive. So, when it gets cut down and destroyed the pandas also suffer. Additionally, in ecosystems, a wide variety of organisms helps other living creates have more forms of survival. This shows how important biodiversity is.
What hypothesis might the experimenter have been testing with this experiment?
Answer Plato:
Increased levels of carbon dioxide cause air to heat up more rapidly.
Answer:
The dependent variable is 'dependent' on the independent variable. As the experimenter changes the independent variable, the change in the dependent variable is observed and recorded.
Explanation:
The hypothesis that the experimenter might have been testing with this experiment is increased levels of carbon dioxide cause air to heat up more rapidly.
The experimenter is likely testing whether higher concentrations of carbon dioxide in the atmosphere lead to a faster rate of temperature increase in the surrounding air. This hypothesis is relevant to the study of climate change and global warming, where elevated levels of carbon dioxide, primarily from human activities, are believed to contribute to the Earth's temperature rise due to the greenhouse effect.
In conclusion the experiment would involve exposing air samples to different concentrations of carbon dioxide and monitoring the rate of temperature increase to determine if there's a correlation between CO2 levels and heating rate.
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approximately_____ element's occur naturally on earth
Answer:
approximately chemical elements naturally occur on earth
Answer:
About 92 I believe
Explanation:
What factors create deep ocean currents
Answer:
Deep currents are driven by temperature and water density/salinity. Of course, deep currents impact surface currents, which carry warm water to the poles. Surface currents are also driven by global wind systems fueled by energy from the sun. Factors like wind direction and the Coriolis effect play a role.
Explanation:
Plz help I need help
What did Louis Pasteur's experiment contribute to cell theory?
Answer:
D) The proof that cells only come from other cells
Explanation:
I took the test and got 100%
*80 POINTS PLEASE HELP
The unit discusses and defines hydrostatic pressure. Explain what hydrostatic pressure is and how this term relates to Néry’s talk.
Explain what the term “blood shift” means and how it works.
Describe what happens when Néry falls below 80 meters in depth. How must Néry react in order to survive, and even enjoy, falling to such depths?
Néry describes many aspects of the entire experience of free diving that he finds appealing. What aspect of the free-diving experience that Néry describes appeals to you most? Why?
Answer:
Answer: Raymond Wang: How germs travel on planes – and how we can stop them
1. After completing the unit and watching the video, explain how the unit about oceans and the video about germs on a plane relate?
In his video Raymond explains how the diseases are transmitted through planes from one country to another and the difficulties faced to prevent the spread of diseases due to the air circulation in the planes. It is always difficult to screen the person with disease and prevent them from getting into the plane since the air circulates in the conventional cabins. When a person sneezes, the air will get swirled multiple times and spread the disease.
2. Using examples from the video, explain why it is difficult to keep people who are sick off of planes.
It’s difficult to pre-screen for diseases. When someone goes on a plane, they could be sick and actually be in this latency period in which they could have the disease but not exhibit any symptoms and could possibly spread the disease to many other people.
3. How does Wang illustrate what happens in a conventional airplane cabin when someone sneezes?
He illustrates how the air is just being circulated throughout the plane. When someone sneezes, the air is just being circulated into the air. This means that everyone on that plane has breathed in that person’s sneeze because it’s such a compact place.
Answer:
4.
Explanation:
Describe Wang’s solution for easily preventing the spread of disease on airplanes? What does “flow,” a word seen in the unit, have to do with his solution? The thing he made to prevent people from getting sneezes in their face is by making the bacteria flow straight towards the filters, so no one gets the bacteria in their faces.
“How are proteins built using the information provided by a molecule of RNA?” Remember, you are describing processes, so your predication should include steps.
Answer: Prediction: RNA determines the sequence of amino acids in proteins and polypeptides by a two-step process: transcription of DNA produces mRNA in the nucleus, then translation of the mRNA to tRNA takes place in the ribosome in the cytoplasm.
Explanation: took test
SELECT ALL THAT APPLY
The skeletal system is made up of:
Organs
Muscles
Nerves
Bones
Answer:
Bones is the answer!!!!!!!
Answer:
The real answer is:
Bones and Muscles
Four students are discussing heat, thermal energy, and temperature. Claire says temperature indicates the amount of heat in an object. Hazel states that heat is a transfer of energy. Connor says that, if two objects have equal masses, the hottest object has the most thermal energy. Evan disagrees. He says that, if two objects have equal masses, the hottest object has the most heat.
Answer:
Claire and Conner are correct
Explanation:
trust me.....
Among the four students, Hazel and Connor are correct in their statements. Heat is indeed a transfer of energy, as stated by Hazel. Similarly, Connor is right in saying that if two objects with equal masses are compared, the hottest object possesses the most thermal energy. Thus, correct option is (d).
Hazel is right when she says that heat is the thermal energy that is transferred between objects when there is a temperature difference. This is a cornerstone idea in thermodynamics. The claim made by Claire is untrue because temperature really measures the average kinetic energy of an object's molecules rather than the quantity of heat it contains.
The idea that thermal energy, which is connected to the kinetic energy of particles in an object, rises with temperature is supported by Connor's assertion. Consequently, the object with a greater temperature does actually have more thermal energy when two things have equal masses.
Evan's argument against Connor's assertion is unfounded. Temperature measures the intensity of heat, not the overall amount of thermal energy. Therefore, the correct pair of students are Hazel and Connor (option d).
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The given question is incomplete, complete question is- "Four students are discussing heat, thermal energy and temperature. Claire says temperature indicates the amount of heat in an object. Hazel states that heat is a transfer of energy. Connor says that, if two objects have equal masses, the hottest object has the most thermal energy. Evan disagrees. He says that, if two objects have equal masses, the hottest object has the most heat.Which students are correct?
a) Claire and Evan
b) Claire and Connor
c) Hazel and Evan
d) Hazel and Connor"
20
Drag each label to the correct location on the image.
When a honey bee stings or a pathogen attacks, the body elicits an inflammatory response. Label the processes that happen during an
inflammatory response.
The inflammatory response is a type of body response produced in response to damaged tissue, attack of pathogen and or any other cause.
The body shows an inflammatory response in the following manner:
1. Recognition of stimulus- receptors recognize the antigens.
2. Release of inflammatory markers: affected cells produce chemicals like histamine, bradykinin, and prostaglandins.
3. Vascular permeability changes and leukocyte (WBC) recruitment- released chemicals causes the blood vessels to leak fluid causing swelling and attract WBC.
4. Accumulation of leukocytes- WBC performs the process of phagocytosis which eats dead or damaged cells and germs.
I hope this is what you were looking for
According to the model of the human respiratory system, how do structures in the
respiratory system interact to protect the lungs? How might a sinus infection affect the
rest of the respiratory system?
Answer: The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.
Explanation:
There are Cilia that protect the airways of the lungs from invaders and pathogens by trapping them. Sinus is present in the nose which blocks the airways while it swells.
What is the respiratory system?The respiratory system is the system that is responsible for getting oxygen into the body and removing carbon dioxide from the body.
Together, the respiratory and circulatory systems move blood and oxygen throughout the body. The trachea, bronchi, and bronchioles are the pathways by which air enters and exits the lungs. The pulmonary arteries and veins, which attach to the heart, carry blood into and out of the lungs.
Thus, there are cilia that, by trapping invaders and diseases, defend the lungs' airways. The nose has a sinus, which obstructs the airways when it grows.
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What a types of organisms do lactic acid fermentation? Summarize this process
Answer: In lactic acid fermentation, pyruvate from glycolysis changes to lactic acid. This type of fermentation is carried out by the bacteria in yogurt, and by your own muscle cells. In alcoholic fermentation, pyruvate changes to alcohol and carbon dioxide. This type of fermentation is carried out by yeasts and some bacteria.
Explanation: Found on Flexbooks.
Lactic acid fermenting bacteria is Lactobacillus, though other bacteria and even yeast are sometimes used.
Lactic acid fermentation is a metabolic process by which glucose or other six-carbon sugars are converted into cellular energy and the metabolite lactate, which is lactic acid in solution.What is lactic acid?Lactic acid is mainly produced in muscle cells and red blood cells.It forms when the body breaks down carbohydrates to use for energy when oxygen levels are low. When body's oxygen level might drop include: During intense exercise lactic acid is formed.What is fermentation?Fermentation is a chemical process by which carbohydrates, such as starch and glucose, are broken down anaerobically. Fermentation has many health benefits and is used in the production of alcoholic beverages, bread, yogurt, sauerkraut, apple cider vinegar and kombucha.
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How do bacteria get the proteins for the soil? (Protein food web thing)
Answer:
Nitrogen-fixing bacteria convert nitrogen gas from air into a form that plants can use to make proteins. Free-living nitrogen-fixing bacteria are also found in the soil. When they die the nitrogen they have fixed into their biomass is converted into ammonium. 2.
Explanation:
Developing and using models, making observations, and using mathematics apply to
a. science only.
b. engineering only.
c. both science and engineering.
d. neither science nor engineering.
Which term describes a type of organism whose cells contain a nucleus and specialized membrane-bound organelles?
Answer:
A eukaryote is any organism whose cells have a cell nucleus and other organelles enclosed within membranes. any of a number of organized or specialized structures within a living cell.
Explanation:
Plz fast fast
Glucose molecules bond together in a process known as dehydration synthesis. What
happens in this process?
The reaction uses water molecules to break the bonds in each glucose.
O4 water molecules are lost from each bond broken
O 4 Water molecules are used for every
O 1 water molecule is lost (OH + H) for every bond formed
Glucose molecules bond together in a process known as dehydration synthesis, and in this process, 1 water molecule is lost (OH + H) for every bond formed. The last option is correcting the glucose dehydration reaction.
What is glucose dehydration?The macromolecules, such as the polysaccharides and proteins, are formed by the dehydration reaction, and in this reaction, the water is lost to make the polymer. The single glucose molecules unite with each other and release a single unit of water to form the polymers, and in this way the polymers such as glycogen, starch, and cellulose are formed.
In the case of proteins, each amino acid dehydrates and releases one molecule of water, forming the polypeptide chain. As a result of the dehydration process, the monomers combine to form the polymer, which can be structural or functional.
Hence, for every bond formed, one water molecule (OH+H) is lost. The last option is correct regarding the glucose dehydration reaction.
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Scott suffers from narcolepsy. He suddenly collapses in sleep at random moments, but his daughter, Tricia, is always there to help him. How might Scott's
narcolepsy affect Tricia?
a. Narcolepsy is thought to be hereditary, so Tricia has the potential to suffer from narcolepsy as well.
b. Narcolepsy is thought to be a learned behavior, so Tricia may learn narcolepsy from her father.
c Narcolepsy is thought to be contagious through a particular pathogen, so Tricia might be exposed to that same pathogen and become narcoleptic.
d. Narcolepsy will in no way affect Tricia, other than the help she will need to provide for her father.
Answer:
D
Explanation:
Narcolepsy has no pattern of inheritance.
Narcolepsy is thought to be a learned behavior, so Tricia may learn narcolepsy from her father. Thus option D is correct.
What is narcolepsy ?Narcolepsy is a type of sleeping disorder is characterized by severe and persistent daytime sleepiness which can cause impairments in school, work, and social settings.
Narcolepsy affects hundreds of thousands of Americans both children and adults, the symptoms include excessive daytime sleepiness (EDS), where the brain is unable to regulate wakefulness and sleep.
Other symptoms are rapid eye movement (REM) sleep, this sleep irregularly begins within minutes after falling asleep.
It can be up two types Types such as narcolepsy type 1 (NT1) and type 2 (NT2); NT1 is associated with cataplexy, which means sudden loss of muscle tone.
NT1 can be diagnosed with the low levels of hypocretin-1; NT2 was otherwise known as narcolepsy without cataplexy do not have cataplexy or low levels of hypocretin-1.
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Animals release energy needed for growth and repair through a
Answer:
The best answer of how animals release energy needed for growth and repair is ( C ) : A series of chemical reaction during cellular respiration
Animals need energy to function effectively daily and also to repair. one way by which Animals get such energy is through cellular respiration.
during cellular respiration the series of chemical reaction that leads to the release of energy follows this pattern.
Consumed food ( sugar/glucose molecules ) are broken down
The energy released from the breakdown is then transformed into ATP energy
The transformed ATP energy is then used for Cellular activities ( growth and repair of animal cells )
Photosynthesis and Cellular respiration are have similar process but the former ( photosynthesis ) occurs in plants not Animals.
Hence we can conclude that animals release energy needed for growth and repair through a series of chemical reaction during cellular respiration.
Explanation:PLSS BRAINLIESTT
Which galaxy will collide with the Milky Way in several million years? (1 point)
O Large Magellanic Cloud
O Local Group
O Andromeda Galaxy
O Sagittarius Dwart Galaxy
Answer: The Andromeda galaxy
Explanation:
And that's going to happen someday! The Andromeda galaxy is currently racing toward our Milky Way at a speed of about 70 miles (110 km) per second. Ultimately, the two galaxies will collide and merge.
Andromeda Galaxy collide with the Milky Way in several million years. Thus option C is correct.
What is Andromeda galaxy ?The Andromeda Galaxy (M31) which is the closest large galaxy to the Milky Way.
Around 4.5 billion years both Andromeda Galaxy and the Milky Way may be collide and form a giant elliptical galaxy.
Andromeda consist of 14 dwarf galaxies, M32, M110, and M33 galaxy.
It is supposed to Andromeda is the largest galaxy in the Local Cluster and most massive due to more dark matter in milk way galaxy.
Most of the astronomers use this Andromeda Galaxy to understand the origin and evolution of the galaxy.
This Galaxy called spiral galaxy has double nucleus, has massive stars, dust and one supermassive black hole hidden at the core region.
Thus option C is correct.
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Rewrite the new sequence after the deletion of the "G" in position 3:
CCG.....UAG..... GUC.....CUG
Deletion is just the removal of one of the nucleotides. Therefore, the new sequence would be:
CCU...AGG...UCC...UG
(Basically everything moves over one)
1. List 2 interactions between the earth spheres and the water cycle.
2. List 2 interactions between the earth spheres and the carbon cycle.
3. List 2 interactions between the earth spheres and the nitrogen cycle.
Answer:
The carbon cycle, as the nitrogen cycle, occurs in all the spheres: Biosphere, Atmosphere, Geosphere and Hydrosphere.
Explanation:
Most Earth events involve interaction between multiple spheres. For example, rain is the movement of water (the hydrosphere) from the atmosphere to the lithosphere where it collects in lakes, rivers, or streams. Water is an important resource for inhabitants of the biosphere.
The Atmosphere-contains all the air in Earth's system. The upper portion of the atmosphere protects the organisms of the biosphere from the sun's ultraviolet radiation. It also absorbs and emits heat. This sphere is also where weather occurs.
The nitrogen cycle occurs in all the spheres and ecosystems. It passes through rocks, water, atmosphere, plants, etc.
In atmosphere and biosphere: Nitrogen is about 78% of the gases in the atmosphere an it’s a essential component of the living organisms. It enters plants through the microorganisms that convert this nitrogen into ammonia. After this conversion, the plants absorb this substance. It can pass to animals when they eat these plants. Then, when they urinate, bacteria convert ammonia to nitrogen again and it returns to the atmosphere.
Sources:
https://earthsphereslife.wordpress.com/2020/03/31/nitrogen-cycle/https://earthsphereslife.wordpress.com/2020/04/01/carbon-cycle-in-all-the-spheres/
What is the significance of extra atmospheric carbon dioxide in the earths earth's atmosphere
Answer:
Extra Carbon Dioxide in the atmosphere increases the temperature on Earth.
Explanation:
Carbon Dioxide is a greenhouse gas so when there is increasing Carbon Dioxide we see the greenhouse effect.
