Why do viruses need living hosts, such as bacteria or eukaryote cells?

Answers

Answer 1
Because virus are dependent on the host to live and multiply.

please vote my answer brainliest. thanks!

Related Questions

What are the basic differences between milk cream and butter?

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Cream and butter are both are considered as dairy products, the two types of fat content.

Cream has a lower fat content while butter has a higher fat content and undergoes additional processing steps.

Milk Cream vs. Butter:

Cream: Contains a fat content ranging between 10% and 18%, often sold as half and half, coffee cream, or table cream.Butter: Made from sweet creams with a fat content of 30% to 40%, undergoes a process where fat separates from buttermilk, gets washed and kneaded for consistency, with added color and salt.Differences: Cream has a lower fat content compared to butter, which has a higher fat content and undergoes additional processing steps.

Based on the classification of organisms, a lion would share characteristics most similar to an animal in the same ______.

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The answer to the question is genus. The classification of organisms goes as follows, Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species. The more one goes down the list when comparing two different species, the more similar those organisms are to one another. An animal sharing the same species as a lion would be a lion. So, the next level up is the Genus, which is this case is Panthera.

Final answer:

A lion would share the most similar characteristics with an animal in the same genus, such as other large cats within the genus Panthera like tigers, leopards, and jaguars.

Explanation:

Based on the classification of organisms, a lion would share characteristics most similar to an animal in the same genus. The classification system scientists use, known as the taxonomic classification system established by Carl Linnaeus, organizes living things into hierarchical categories. As you move down these categories from the kingdom to the species level, the organisms become more similar to each other due to shared traits and a closer evolutionary relationship.

Lions, for instance, belong to the genus Panthera, which they share with other large cats like tigers, leopards, and jaguars, which means they are closely related. At the family level, lions are part of the Felidae family, which encompasses all cat-like carnivores, including domestic cats. However, domestic cats belong to a different genus, Felis, indicating that while they share many characteristics and a common evolutionary path, they are less closely related than lions are to other members of the Panthera genus.

_____ systems have a membrane that separates the internal chemicals from the external chemical environment.

Answers

Living systems have a membrane that separates the internal chemicals from the external chemical environment. 

Living organism has to keep their internal chemical level so they need to make a membrane that separates it from the external chemical environment. 

According to the Hertzsprung-Russell diagram, what color is our Sun?

Answers

According to the Hertzsprung-Russell diagram, the sun has a 

luminosity of 1, and is Yellow.

Answer:

Yellow

Explanation:

As per the Hertzsprung-Russell diagram, stars which are hot lie on left hand side of the diagram while the stars which are cool lie on the right hand side of the diagram.  

However while moving from top to bottom on HR diagram, bright stars lie at the top while the faint stars ;lie at the bottom of the diagram.  

However Sun is an average star which has mediocre temperature and luminosity and therefore it lies near to the middle of the diagram.

Hence, it is yellow in color

When did Lamarck publish his ideas on evolution?

A) late 1700s
B) early 1700s
C) early 1800s
D) late 1800s

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C) early 1800s

Hope this helps : )

âwhat is the term for chronic and degenerative liver disease that causes injury to the hepatocytes

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The answer is cirrhosis. Cirrhosis builds up when scar tissue changes normal, healthy tissue in your liver. It happens after the healthy cells are damaged over a long period of time. This is a late stage of scarring (fibrosis) of the liver caused by many forms of liver diseases and conditions, such as hepatitis and chronic alcoholism. The liver performs a few essential roles, like cleaning your blood, detoxifying harmful substances in your body, and making vital nutrients.

When food enters the small intestine, a hormone stimulates the release of ______ from the pancreas?

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Pancreas manufactures enzymes to digest all energy-yielding nutrients and releases bicarbonate to neutralize acid chyme that enters the small intestine

The _______ is the ultimate cause for balancing a population.

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Is it important that the population of different species that exist on Earth is balanced because there is competition. 

Competition is part of the lives of every species on Earth because of the resources on Earth are limited and are some may even be scarced. 

Answer:

The age structure, breeding pattern  and environment are the ultimate causes for balancing a population.

Explanation:

When it comes to balancing a population, the main causes are all kinds of demographic components. The equilibrium of a population is directly linked to the reproducibility of the individuals involved. Based on this, we can say that the age structure and reproductive pattern of individuals are very important demographic components for population balance. In addition, these components are directly linked to the conditions that the environment provides to individuals.

Which best describes a benefit of using DNA technology in medicine?

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what are the options? you can use DNA technology to fix specific proteins for different people
Medicines have fewer side effects. Because using DNA technology, doctors can prescribe medicines that benefit instead of clash with medical characteristics of a patient.

Hope that helps!

The formation of the fertilization envelope (slow-block to polyspermy) requires an increase in the availability of _____.

Answers

The formation of the fertilization envelope (slow-block to polyspermy) requires an increase in the availability of calcium ions.

Slow-block to polyspermy is also called cortical reaction. In this reaction, the sperm will be permanently blocked by cortical granules. The release of calcium ion will trigger this reaction.

-URGENT-
Which of the following best describes sperm production in the male human reproductive system?


A.One diploid cell, with 46 chromosomes, undergoes meiosis to form four haploid sperm cells, with 23 chromosomes each.
B. Four haploid cells, with 23 chromosomes each, undergo mitosis to form one haploid sperm cell, with 23 chromosomes.
C. One diploid cell, with 46 chromosomes, undergoes mitosis to form four diploid sperm cells, with 46 chromosomes each.
D.Four haploid cells, with 23 chromosomes each, undergo meiosis to form one diploid sperm cell, with 46 chromosomes.

Answers

I know it is meiosis and not mitosis, so I'm like 99% sure that it is A.
I think this because the 23 chromosomes then combine with the 23 chromosomes from the female to make 46.
So I'm pretty sure that it is A.

Answer:

A.One diploid cell, with 46 chromosomes, undergoes meiosis to form four haploid sperm cells, with 23 chromosomes each.

Explanation:

The diploid primary spermatocytes (2n=46) undergo meiosis I and forms two haploid secondary spermatocytes (n=23). The secondary spermatocytes undergo meiosis II and form total four sperm cells (n=23). Since the sperm cells are product of meiosis, they are haploid and each sperm cell have 23 chromosomes.

Diets extremely low in fat may be deficient in ________.

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Diets extremely low in fat may be deficient in ESSENTIAL FATTY ACIDS. Essential fatty acids are those fats which can not be synthesized by the body and which must be obtained from the food that the animal eat. Examples of essential fatty acids are linoleic and alpha linoleic fatty acids.

Any factor in an experiment that affects the results of the experiment is

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Is the independent variable which is what you are testing.

The australopithecus lineage went extinct about:

Answers

Went extinct in East Africa and South Africa by 1.0 million years ago.

Why is positive feedback helpful in blood clotting but unsuitable for the regulation of body temperature?

Answers

The human body has two type of feedback mechanism, positive and negative feedback. Positive feedback is a cyclic process that amplifies the action of a system until a negative feedback response is obtained. Positive feed back is important in processes that must go to completion quickly, for instance blood clotting. But it is harmful in situations in which stable conditions must be maintained, for instance body temperature,  this is because it encourages departure from the state of stability. 

Final answer:

In summary, positive feedback loops are employed in blood clotting to quickly escalate the response until clot formation is complete, which is necessary for stopping bleeding. On the other hand, negative feedback loops are essential for body temperature regulation, as they help maintain constant conditions by counteracting changes away from the body's set point.

Explanation:

Blood Clotting and Body Temperature Regulation

Blood clotting is a process maintained by a positive feedback loop, where the presence of clotting factors leads to the amplification of the clotting response, and thus more clotting factors are produced. This reaction continues until the clot is formed, which is necessary to stop bleeding. Positive feedback loops are beneficial here as they lead to the rapid escalation of the body's response until the endpoint - a stable clot - is reached.

However, body temperature regulation requires a negative feedback mechanism. When the core body temperature strays from the set point, homeostatic responses such as sweating or shivering are triggered to bring it back to normal. As opposed to the positive feedback loop, this negative loop ensures a stable body temperature by making adjustments that counteract the initial change, rather than amplifying it.

Given that positive feedback loops may push the system away from the set point and can be potentially harmful if not properly concluded, they are unsuitable for continuous processes like body temperature regulation that require constant fine-tuning to maintain stability.

Which memory system has an unlimited capacity and can keep information for hours or decades?

Answers

Memory system has an unlimited capacity and can keep information for hours or decades is called long term memory. Long term memory is defined as a system in which information can be stored permanently, manage and retrieve for later use. Long term memory is divided into three main parts; these are procedural, sematic and episodic memory. Procedural memory is accountable for knowing how to do things, though it doesn’t now include conscious thoughts. While, sematic memory is responsible for the general knowledge that includes knowing about the word’s meaning. Lastly, the episodic memory in which it involves conscious thoughts thus it is responsible for storing information about the various happenings in human life.

 

Final answer:

Long-term memory is the memory system with unlimited capacity, capable of storing information for hours, years, or even decades. It's similar to a computer's storage system and goes through encoding, storage, and retrieval processes. Memory enters sensory memory first, then short-term memory, before finally being stored in long-term memory with enough rehearsal.

Explanation:

The memory system that has an unlimited capacity and can keep information for hours or even decades is the long-term memory (LTM). LTM can be compared to a computer's storage system, serving as a place where information is permanently or semi-permanently stored. Memory has three basic functions: encoding, storing, and retrieving information.

The process of getting information into our memory system is called encoding. Storage is the retention of the encoded information, and retrieval is the act of getting information out of storage and into conscious awareness through recall, recognition, and relearning. Sensory, short-term, and long-term memory are the three distinct stages information must pass through for it to enter storage. This tripartite division of human memory and its comparison to a computer's processing system is laid out in Atkinson and Shiffrin's model of memory.

Information first enters our sensory memory for a period of less than a second to a few seconds. The information we pay attention to is then transferred into short-term memory. With regular rehearsal of this information, it moves into long-term memory for permanent storage. Overall, long-term memory has a practically limitless storage capacity and is divided into implicit and explicit memory.

Learn more about Long-term Memory here:

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Cells on the shaded side of a plant stem elongate more than cells on the lighted side because __________. ethylene inhibits the cells on the lighted side from becoming more flexible auxins accumulate on the shaded side and cause the shaded side's cells to become more flexible ethylene stimulates cell growth on the shaded side and causes the cells to become more flexible auxins accumulate on the lighted side and cause the lighted side's cells to become less flexible

Answers

I think the correct answer would be the second option. Cells on the shaded side of a plant stem elongate more than cells on the lighted side because auxins accumulate on the shaded side and cause the shaded side's cells to become more flexible. Auxins are responsible for promoting growth or elongation of the stems. Shaded stems would contain more auxin which means that they would elongate more.

Which pair of terms describes the same characteristic? a. compound: alveolar b. acinar: alveolar c. tubular: merocrine d. simple: tubular?

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I believe it's A compound

The correct description is b. acinar: alveolar, as both terms describe sac-like structures. Other options mix terms relating to structure and secretion modes.

The correct option is b. acinar: alveolar.

Acinar (alveolar) glands: These glands have sac-like structures known as alveoli or acini. The acinar and alveolar terms are used interchangeably to describe these characteristics.

Other pairs do not describe the same characteristic, as explained below:

a. Compound: alveolar - Compound describes a branching duct system in glands, whereas alveolar describes the sac-like pocket structure.c. Tubular: merocrine - Tubular refers to the shape of the gland’s duct, while merocrine describes a mode of secretion.d. Simple: tubular - Simple refers to a single, unbranched duct, whereas tubular describes the tube-like duct structure.

Understanding these terms helps in recognizing how different glands are classified based on structure and function.

Jane is performing in experiment on plant growth she places it in direct sunlight waters it at the same time every day and always gives the plants the same amount of water what is the independent variable? The amount of water, time, the amount of sunlight, or plant growth

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The independent variable would be the variable that is changed in an experiment. It is also called the manipulated variable. In this case, the independent variable would be  the amount of sunlight. The amount of water and the time are constants in this experiment since they are maintained to be the same for the whole process. The plant growth would be the dependent variable as it is the variable that is being studied.

Drag the terms to complete the concept map below. diploid organisms maternal chromosomes meiosis ii sister chromatids separate crossing over occurs haploid gametes

Answers

The phases of diploid and haploid multicellular plants alternate between generations in their life cycle.

Thus, The chromosomes are copies in diploid and haploid organisms. The plant's spores are unicellular, and when they begin to divide through the process of mitosis, they form identical cells.

These haploid cells are all identical. Each parent's set of chromosomes is present in equal numbers at haploid stages. The gametophytes are multicellular systems made up of these similar cells.

The haploid multicellular stage of a plant's life cycle is known as a gametophyte. Gametes are produced by the gametophyte. The sexual fertilization process is carried out by these gametes.

Thus, The phases of diploid and haploid multicellular plants alternate between generations in their life cycle.

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Which element is not found in abundance in the atmosphere?
A. Carbon
B. Nitrogen
C. Phosphorous

Answers

C phosphorus is the least out of the three you have listed
Final answer:

Phosphorus is the element not found in abundance in the atmosphere, unlike carbon and nitrogen, which are part of the carbon cycle and naturally occur in the atmospheric gases.

Explanation:

The element phosphorus is not found in abundance in the atmosphere. Unlike carbon, which is part of the carbon cycle and can be found in the atmosphere as carbon dioxide, phosphorus does not have a gaseous phase under normal conditions on Earth. The phosphorus cycle is mainly based on the movement through the lithosphere, hydrosphere, and biosphere, rather than the atmosphere. Phosphorus is essential for life as it is a critical component of bones, teeth, and cellular structures, yet it is relatively rare in the Earth's crust and not readily available in the environment like carbon or nitrogen.

___________ is defined as the process used to render a surface or product free from viable organisms, including bacterial spores.

Answers

Answer: Sanitization

Explanation:
Sanitization is also called disinfection. It is the process to remove bacterial spores and other pathogenic organisms from surfaces to make them sterile.

Sanitization is essential for cleaning wounds that could become breeding grounds for infection and disease.

Sanitization is also required in food preparation to keep cooking utensils and food handling equipment free from bacterial contamination.

What structures in amoeba and paramecium also occur in plant cells?

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The cell organelles that are common to amoeba, paramecium and plants are cell membranes, nucleus and vacuoles. The cell membranes serves as the boundary of the cells, the vacuoles store biochemical substances needed for the cells development and the nucleus house the genetic material.

Amoeba and paramecium share basic eukaryotic structures with plant cells, but plant cells have a large central vacuole, cell wall, and plastids like chloroplasts that these protozoans do not.

The structures in an amoeba and paramecium that also occur in plant cells include a cell membrane, cytoplasm, and sometimes vacuoles, which are common components of eukaryotic cells. However, plant cells have several unique structures not found in these protozoans, such as a large central vacuole, a cell wall, and plastids like chloroplasts. The large central vacuole in plant cells maintains pressure against the cell wall, giving shape and support to the cell, the cell wall provides structure, support, and protection, and plastids such as chloroplasts are involved in photosynthesis and can store pigments.

Hiv, the virus that causes aids, was discovered in the early 1980s. because it is a relatively new virus, there are many myths and misunderstandings that surround this virus. false true

Answers

The answer of this is true. It is because people would likely make up conclusions, misunderstandings and myths because of it because it is new and there are no further establishment or enough explanation of why it happened, that is why it is likely that people will make up stories about it.

Answer:

true

Explanation:

A hospitalized 10-year-old child is apathetic about eating. what is the best nursing intervention to support the child's nutrition?

Answers

I would if I were the nurse try to get the 10 year old to first eat something they obviously liked like, say ice cream but saying that only if they agree to eat such and such ie to eat a little bit of say vegetables or meat or soup or sandwich if they get the treat which could also be something like crackers and cheese or nice cookies for example. Also, it should be explained how such and such food is essential to provide nutrients to the body for energy to play etc. 

He organ that produces bile salts that break down fats is the ____.

Answers

In the liver, bile salts are formed. Because of their low surface tension, this contributes to the emulsification of fats found in the intestine and their absorption from the GI tract. These are bile’s components. It is because of the bile salts which give bile the ability to emulsify, mix, lipid in the aqueous environment in the intestine. Bile is the one responsible for the efficient digestion of lipids. Bile is secreted in the gallbladder down to the small intestine. It then breaks dietary fats into smaller particles called emulsification in the small intestine. The bile’s function is in the completeness of the digestion and absorption of fat.  

Any condition or factor that can be manipulated, controlled, or measured, is a _____

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The answer is variable. This is a vital part of any experiments and science projects this is basically any factor that can be controlled, changed, or measured in experimentation. Scientific experiments have quite a few types of variables. The independent variables are the ones frequently plotted on a chart or graph, but there are other kinds of variables you may come across like the dependent and controlled.

When the huge polar caps on mars form every winter, they are made chiefly of ________?

Answers

When the huge polar caps on mars form every winter, they are made chiefly of dry ice, also known as frozen carbon dioxide.
There are two permanent polar caps on Mars, one in the north of the planet, and one in the south. During the summer, however, these polar caps sublimate, which means that they turn directly to gas and go into the atmosphere. 

The amount of light entering the eye is regulated by changes in the size of the

Answers

The eye is a complex part of your body as shown in the picture. The part of the eye that takes in the light is the pupil. This is the black dot of your eyeball that takes in the adequate amount of light to focus on the objects you see. You should note that the color black absorbs lights, while the white reflects light. An analogy would be the black hole in space that sucks all matter in its range, including radiation. That is why the function of regulating the intake of light is appropriate for the pupils.

On a hike along the desert slope of the sierra nevada mountains in california, you notice that there is an abundance of pinyon pine and juniper trees. we would identify these two plants as:

Answers

We would identify these two plants as ECOLOGICAL DOMINANTS. Ecological dominants refer to a small number of species that are abundant in a given community, they are more numerous than all other species in the community. Dominance can be as a result of number, size or productivity.
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