What is the role of a host in viral reproduction? Please explain

Answers

Answer 1

Answer:

During attachment and penetration, the virus attaches itself to a host cell and injects its genetic material into it. During undercoating, replication, and assembly, the viral DNA or RNA incorporates itself into the host cell's genetic material and induces it to replicate the viral genome.

Explanation:

I looked it up.


Related Questions

The surface of the villi in the small intestine is covered by a single layer of epithelial cells called enterocytes. Enterocytes absorb nutrients from the intestinal lumen as they move up the side of the villus. The enterocytes are shed from the end of the villus through apoptosis after 3 to 4 days. Consequently, new cells must be continuously supplied from the crypt and move up the villus. When a stem cell in the crypt divides, what are its immediate daughter cells

Answers

Answer:

either a stem cell or a specialized cell, such as an enterocyte

Select the statements that accurately describe endocytosis.

a. The cell forms proteins that move substances into the cell against a concentration gradient.

b. The cell selectively filters small nutrients through specialized membrane pores.

c. The cell membrane pinches off to form an extracellular vesicle joined to the cell by filaments.

d. The cell membrane engulfs a particle in the cytoplasm and forms a vesicle around it.

e. The cell expends energy to transport materials into the cytosol.

Answers

Answer:

The correct answer is:

The cell membrane engulfs a particle in the cytoplasm and forms a vesicle around it.  (d.)

Explanation:

Endocytosis is a type of active transport, where particles such as (large molecules, parts of cells, and even whole cells) are moved into cells.

The various types of endocytosis has a common feature of:

1. invagination of plasma membrane forming pockets around the target particle.

2. the pocket pinches off from original plasma membrane

3. forming a new intracellular vesicle containing the target particle.

The different types of endocytosis includes

a. pinocytosis (cell drinking): takes in extracellular fluids

b. phagocytosis (cell eating): large solid particles are taken in by cells

c. receptor-mediated endocytosis: here, receptor proteins on the cells surface, binds to complementary proteins on the surface of the target particles before endocytosis occurs.

Identify the terms described by selecting the correct word from the drop down menu

Anything that has mass and take up space

Atom
Element
Matter

The part of earth in which life exists including land water and air

Thermosphere
Biosphere
Exosphere

Answers

The answers are
1. Matter
2. Biosphere

Answer:

1. Matter

2. Biosphere

Explanation:

in 1994, naturalists in Australia discovered a new genus and species of conifer, Wollemia nobilis, growing in a remote area not far from the city of Sydney. This was the first new conifer discovered since 1948. Wollemi pine (not really a pine) is in a family that had global distribution in the Crustaceous period. Scientists used a variety of different evidence to decide where this rare tree should be placed in the "Tree of Life." What evidence would be necessary to determine that this is in the phylum Coniferophyta?

Answers

Answer:

The following should be the characteristics exhibited by the plant to place it under the phylum Coniferophyta:  

1. Only the male cones should possess the tendency to generate pollens.  

2. The plant should have the stems, leaves, and roots in the form of vegetative organs.  

3. Possess the tendency to generate pinecones.  

4. The plant should possess leaves in the form of a needle that stays green throughout the annum.  

5. The leaves of the plants should possess cuticle deposition.  

How does teaching the public about energy conservation help decrease alr
pollution?
A. It reduces the demand for electricity
B. It increases the supply of electricity
C. It increases the consumption of electricity
D. It reduces the cost of electricity,

It’s A btw

Answers

Answer:

I think you answered your question but if not A

Explanation:

All the other answers are just dumb

Orchids are flowering plants that depend on bees for pollination. A population of orchids in a rainforest has reached its carrying capacity. The size of the rainforest's bee population is a limiting factor of the orchid population. What will happen to the orchids' carrying capacity if the rainforest's bee population decreases?

A.
The carrying capacity will not change because it is a constant property of an ecosystem.
B.
The carrying capacity will decrease because the level of the limiting factor decreases.
C.
The carrying capacity will not change because it is a constant property of a species.
D.
The carrying capacity will increase because the level of the limiting factor decreases.

Answers

Answer:

b.  The carrying capacity will decrease because the level of the limiting factor decreases.

Explanation:

i got it right on edmentum

Which of the following statements is accurate?
A. Natural Resources depend on the topography of the area,
B. Natural resources depend on the atmosphere of the area,
C. Natural resources depend on the geography of the area,
D. Natural resources depend on the weather of the area

Answers

Answer:

B

Hope this helps!

What is the main cause of an aurora?Arrange the inner layers of the Sun in order starting with the innermost layer.

Answers

Answer:

i.Core:The center of the Sun where all the Sun's energy is produced.

ii.Radiative Zone:Tiles Energy produced by nuclear reactions in the core travels to this zone through radiation. 

iii.Convection Zone:In this zone, hotter gases from the base travel to the top and  cooler gases sink to the bottom due to the temperature difference.

iv.Photosphere:This zone is visible from Earth. Sequence

When charged particles from the sun strike atoms in Earth's atmosphere, they cause electrons in the atoms to move to a higher-energy state. When the electrons drop back to a lower energy state, they release a photon: light. This process creates the beautiful aurora, or northern lights. ~Earthsky

Answer:

hiii

Explanation:

is b

DPIP was used in the photosynthesis lab to measure the

-Light dependent reactions

-Production of O2

-Light Independent reaction (a.k.a. Calvin cycle)

-Production of CO2

Answers

Answer:

Light dependent reactions

Explanation:

DPIP stands for Dichlorophenolindophenol. It is a chemical compound that is used as a redox dye.

DCPIP is blue when it is oxidized DCPIP is colorless when it is reduced.

DCPIP measures the rate of photosynthesis. The redox dye is decolorized by chemical reduction when it is exposed to light in the process of photosynthesis.

DPIP was used in the photosynthesis lab to measure the light dependent reactions.

Which of the following best describes the process of hydration?

Answers

Answer:

D that is, water bonds with elements in the minerals that make up rock, forming new substances​.

Explanation:

hope its right!

Answer:

Water bonds with elements in the minerals that make up a rock, forming new substances.

Explanation:

you welcome



Use the drop-down menus to answer the questions.

Which feature contains genetic material and is present in a eukaryotic cell but not in a prokaryotic cell?

Which two features are present in a plant cell but not in an animal cell? ************someone HELP PLEASE***********

Answers

Answer:

A DNA is contained in the NUCLEUS of a eukaryotic cell not a prokaryotic cell. Your awnser is " nucleus"

Explanation:

The feature that contains genetic material and is present in a eukaryotic cell but not in a prokaryotic cell is the nucleus. The two features that are present in a plant cell but not in an animal cell are the cell wall and chloroplasts.

1. Eukaryotic cells have a membrane-bound organelle called the nucleus that contains the DNA of the cell. It is in charge of conserving and safeguarding the genetic material, including the chromosomes that contain the genes that govern the properties and operations of the cell.

On the other hand, prokaryotic cells are devoid of a genuine nucleus. The cytoplasm of these cells contains their genetic material, which is normally one circular DNA molecule.

2. Cell Wall: The cell membrane of plant cells is enclosed by a strong cell wall. The plant cell is protected and supported structurally by the cell wall. Together with other polysaccharides, proteins, and cellulose, a complex carbohydrate, it essentially consists of these elements. Animal cells lack a cell wall and are supported instead by extracellular matrix and other structural elements.

Chloroplasts: The chloroplasts found in plant cells are in charge of photosynthesis. Specialized organelles called chloroplasts house the pigment chlorophyll as well as other pigments that are used to absorb light energy.

They do this by converting light energy into chemical energy, releasing oxygen as a byproduct and creating glucose. As animal cells lack chloroplasts, they are unable to perform photosynthesis.

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The process through which humans breed other animals and plants for particular traits:
A) artificial selection
B) genetic engineering
C) genes
D) selective breeding
E) traits

Answers

Answer:

A) artificial selection

What is the original source of energy in a food web?

Answers

Answer:

the sun or grass

Explanation:

first the sun because the sun helps produce photosynthesis which grows the grass so that other animals can eat from the grass

50 points. ANSWER FAST FOR BRAINIEST. Why is the human body a system of interacting subsystems
composed of a group of specialized cells and tissues? (please use detail and be very specific!) this is supposed to be an essay but please just give me the main points/ the most important info!
I give brainiest and thanks! appreciate it :) SCIENCE

Answers

Answer:

Explanation:

In multicellular organisms, the body is a system of multiple interacting subsystems. These subsystems are groups of cells that work together to form tissues and organs that are specialized for particular body functions.

The first step in the metabolism of triacylglycerols is the hydrolysis of the ester linkage by a lipase. Three different lipases play major roles in triacylglycerol metabolism in animals:
pancreatic lipase (a water‑soluble lipase secreted into the intestine), lipoprotein lipase, and hormone‑sensitive lipase.
a) For the given statements, identify which lipase best fits the description. If none of the lipases apply, choose "none of the lipases."
1. This enzyme hydrolyzes adipose triacylglycerols.
2. This enzyme requires bile salts for activity.
3. This enzyme is found in lysosomes.
4. This enzyme hydrolyzes serum triacylglycerols.

Answers

Answer:

The internal secretion sensitive enzyme concerned within the reaction of fatty triacylglycerol’s. Pancreatic gland enzyme concerned within the reaction of nutritional oil materials in the system alimentation coming back from nutrition and born-again into fatty acids and tangled in the unleash of digestive fluid salts into the internal organ. No accelerator initiate in lysosomes- no one of the lipases (presence of acid lipase in Lysosome)  Pancreatic gland enzyme concerned within the reaction of body fluid triacylglycerol’s.

what is the importance of reflex actions?

Answers

Explanation:

to minimize any damage to the body from potential harmful conditions

An involuntary motor response to a sensory stimulus is known as reflex.Reflexes perform many types of jobs for our central nervous sustem.such as:

they protect us from danger.they help us move our body.they help us to see etc..

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IF U FOUND THIS HELPFUL THEN MARK IT AS BRAINLIEST..

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As a conservationist, what are your top three concerns regarding the hydroelectric dam and the biodiversity of the region?

Answers

Answer:

I’m concerned about how the dam will affect the water flow in the river, which can affect the behaviors of fish. I’m also concerned that some fish and aquatic animals might get sucked into the dam. Finally, I worry that the dam could malfunction and cause flooding, which could damage the ecosystem.

Explanation:

Top three concerns regarding the hydroelectric dam and the biodiversity of the region

Hydropower can also cause environmental and social problems. Reservoirs drastically change the landscape and rivers they are built on. Dams and reservoirs can reduce river flows, raise water temperature, degrade water quality and cause sediment to build up. This has negative impacts on fish, birds and other wildlife.

How do hydroelectric power plants affect the environment?

Hydroelectric plants alter the natural habitats of freshwater species in the areas they are located. It changes the concentration of nutrients, water temperature, and the river's flow. Downstream river flow suffers a loss of water and silt loads, reducing water quality.

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A summary of what grade 10 learn in biology ​

Answers

Answer:

cells, energy and transport, reproduction and cell division, classical genetics, molecular genetics, evolution, human body systems, ecology.  

Explanation:

I looked this up and i have a older sister in grade 10, so i'm 100% sure this is right.

Anaerobic respiration happens in muscle cells and yeast cells.
The equation describes anaerobic respiration in muscle cells.
glucose ---> lactic acid
How can you tell from the equation that this process is anaerobic?
would the answer just be no co2 is produced?

Answers

Answer:

Am I think Co 2 will not be released but rather Glucose will be released

Explanation:

This is because

C6H12O6>2C5H5OH+2Co2 + Energy

there fore glucose is produced

From the equation "glucose → lactic acid," we can infer that the process is anaerobic. One way to determine this is by the absence of carbon dioxide (CO2) in the equation.

Glucose is entirely oxidized to create carbon dioxide, water, and energy during aerobic respiration, which takes place in the presence of oxygen.

Yet, in anaerobic respiration, the lack of oxygen causes an incomplete breakdown of glucose, producing additional byproducts such lactic acid as a result.

Muscle cells have the ability to transition to anaerobic respiration in order to satisfy their energy needs when there is insufficient oxygen.

Muscle cells have the ability to engage in anaerobic respiration, which produces ATP (adenosine triphosphate), the cellular energy currency, by partly metabolizing glucose, during hard exercise or when oxygen supply is constrained.

During anaerobic respiration, lactic acid builds up in muscle cells, which can lead to exhaustion and pain.

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as a human population grows, what happens to our natural- resources requirement

Answers

Answer:

Need for natural resources increase

Explanation:

Which is a possible path of the movements of nitrogen in the nitrogen cycle?
(A) soil - airplants air animals - soil
B) soil animals plants
soil
animals soul plants - air
(D) air - soil plants animals soil - air​

Answers

Answer:

B) soil animals plants

soil

Explanation:

Nitrogen is taken up by plant roots and combined into organic substances in the plant, such as enzymes, proteins and chlorophyll. ... Plant and animal wastes decompose, adding nitrogen to the soil. Bacteria in the soil convert those forms of nitrogen into forms plants can use. Plants use the nitrogen in the soil to grow.

Which characteristics do temperate Marine and temperate Continental climates have in common

Answers

Options are not provided in the question. The complete question is:

Which characteristics do temperate marine and temperate continental climates have in common? Check all that apply.

A.mild winters

B. hot summers

C. many tall trees

D. moderate amount of precipitation

E. two seasons with temperature differences

Answer:

D. moderate amount of precipitation

E. two seasons with temperature differences

Explanation:

The temperate marine climate is generally the climate of west coasts in higher middle latitudes of continents.

Temperate continental climates also known as microthermal climates are located away from the oceans.

Though the location of both the climates is different but some of the characteristics are similar that include are modertae amount of precipitation and two seasons with temperature differences.

Both the climates have moderate rainfall across the year ( modertae amount of precipitation) and mild to warm summers and cool to cold winters.

Hence, the correct option is D and E.

Answer:

Answer is D on egde!!

Explanation:

Most eubacteria are ____________________ because most rely on nutrition from other organisms.

Answers

Answer:

heterotrophic(Heterotrophic Eubacteria are among the most abundant and diverse bacteria on Earth,)

Explanation:

plzz mark me brainliest

Given the following evidence; which does not support the theory of Continental Drift? A) climate
B) fossils of plants and animals
C) magnetic strips in the ocean floor
D) land features match up (like mountains) on different continents

Answers

The theory of Continental Drift does not shows evidence about climate. Thus option A is correct.

What is continental drift?

Continental drift is defined as the idea that the positions of Earth's continents have changed over geologic time, giving the impression that they have "drifted" across the ocean floor.

It can also be defined as the continents moving horizontally at a huge scale in relation to one another and the ocean basins throughout the course of one or more geologic epochs.

The theory of plate tectonics, which integrates this idea, had this idea as a key antecedent.

The fit of the continents, the distribution of prehistoric fossils, rocks, and mountain ranges, as well as the placements of prehistoric climatic zones, were all used as evidence for continental drift.

Thus, the theory of Continental Drift does not shows evidence about climate. Thus option A is correct.

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Which of the following statements regarding selenium/selenoproteins is incorrect?

a. They are proven protection against colon cancer.
b. The amount of selenium in foods depends upon the soil where the plants were grown and animals grazed.
c. Selenium functions as an antioxidant.
d. Selenium plays an important role in the regulation of thyroid hormones.

Answers

Answer:

The correct answer is: A. They are proven protection against colon cancer.

Explanation:

Selenium is a mineral that can be incorporated into our bodies in small amounts when we consume certain foods, such as whole grain and dairy products. The amount of selenium in these products depends on the soil where the plants and animals were.

Selenium plays an important role as an antioxidant, which can lower the risk of developing several types of cancer. However, this doesn't mean that its consumption can prevent colon cancer, and the studies that had been done to prove its effectivity in these regards have been inconclusive.

Besides functioning as an antioxidant, selenium also is very important for the regulation of the thyroid hormones, which play an important part in metabolism.

The protein that contains selenocysteine amino acid remnants is called selenoproteins. They are found in the endoplasmic reticulum of the cells.

The incorrect statement is:

Option a. They are proven protection against colon cancer.

The statement can be explained as:

Selenium is a mineral that gets incorporated into our body through foods, dairy and whole grains. The amount of selenium depends on its amount and presence in the soil.

Selenoproteins are good antioxidants that can lower the risks of cancers. But its consumption does not provide complete protection against cancers.

It also regulates the thyroid hormone and plays a vital role in the regulation of metabolism.

Thus, they have not proven medication for colon cancer.

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A large population of fish live in a lake. The color of their scales is determined by two different alleles of the autosomal S gene, S1 and S2. Homozygous S1S1 fish have yellow scales, S2S2 homozygotes have blue scales, and S1S2 heterozygotes are green. Scientists caught 100 fish at random and recorded their color. Among those 100 fish were 30 yellow, 50 blue, and 20 green ones. After the original sample was analyzed, an asteroid landed in the lake and killed all the fish that happened to be in one particular location. When 100 fish were sampled again, 15 were yellow, 75 were blue, and 10 were green. Was the fish population in Hardy-Weinberg equilibirim (HWE) before the asteroid hit? In an ideal population, how many generations would it take to establish HWE after the asteroid hit?

Answers

Answer:

Yes it was

two generations

Explanation:

H0: population is in Hardy-Weinberg equilibrium

Ha: population is not in Hardy-Weinberg equilibrium

P(S1) = (2×obs(S1S1) + obs(S1S2))/(2×fish(S1S1)+2×fish(S1S2) +2×fish(S2S2) )

P(S1)= (60+50)/(60+100+40)

P(S1)=0.55

P(S2)= 1-P(S1)

P(S2)= 0.45

Exp(S1S1)= 0.55×0.55×100=30.25

Exp(S1S2)= 2×0.45×0.55×100=49.5

Exp(S2S2)= 0.45×0.45×100=20.25

x²=∑ (Observed-Expected)²/ Expected

                   = (30-30.25)²/30.25 + (50-49.5)²/49.5+ (20-20.25)²/20.25

                  = 0.010203

The value at 5% significance level and degree of freedom 1 from  table is 3.84. Since x² value is less than value we accept null hypothesis

It takes two generations to achieve Hardy-Weinberg equilibrium if conditions of Hardy-Weinberg are met.

Identify the remaining processes and components of the carbon cycle. organisms release CO2 atmospheric CO2 plants use CO2 combustion fossil fuels form

Answers

Answer:

Carbon dioxide (CO2) is an important component in atmosphere and Carbon cycles allows movement of carbon dioxide from the atmosphere into living things and from living things to atmosphere again.

There are four main processes included in carbon cycle that is photosynthesis, decomposition, respiration and combustion.

In respiration, living organism such as animals and humans intake oxygen and releases CO2 in atmosphere.

In the process of photosynthesis, plants take CO2 from atmosphere and convert it into oxygen (O2) in the presence of sunlight and water.

In Decompoition, the bacteria present in soil decomposes dead matter by  breaking down into simpler organic or inorganic matter such as water,  carbon dioxide, and mineral salt. The nutrient cycle then recycle the carbon dioxide and send back to teh atmosphere.

In combustion, the burning of fossil fuel in cars and industries releases carbon dioxide back into the atmosphere.

So, the components of carbon cycel include atmosphere, terrestial biosphere, ocean ( dissolved inorganic carbon), and  sediments ( fossil fuels).

.

Answer:

Here's what I got for this one

Explanation:

Hope it helps!

According to the information in the passage, before purchasing bird food for a bird feeder a person should
es )))
A)
plant trees and shrubs in the yard.
B)
purchase a birdbath and a birdhouse.
know what kinds of birds are common to the area.
D
create a bird-friendly environment in the backyard.​

Answers

Answer:

1 is C) know what kinds of birds are common to the area.

2 is D)    main idea and details

Explanation:

I had it on a test hope this helps

Answer: C

Explanation: Know what kinds of birds are common to the area

Primates are found mainly in tropical regions. Which of the following is true of tropical environments? Group of answer choices Primate foods are affected more by temperature than by rainfall. Daily temperature fluctuations are smaller than annual fluctuations. Seasonal changes are virtually nonexistent. Primate foods are affected more by seasonal changes due to rainfall than by changes due to temperature.

Answers

Seasonal changes are virtually nonexistent

which of the following describes an interaction where an organism of one species benefits and an organisms of a different species is not significantly affected? ​

Answers

Commensalism is an association between two different species where one species enjoys a benefit and the other is not significantly affected. Probably the best example of commensalism is the relationship between cattle egrets and large herbivores
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