A plant that has been raised in a sterile environment shows symptoms of a viral infection. how would you explain this?

Answers

Answer 1
The answer would be: The viral infection was acquired by vertical transmission.

Vertical transmission happens when the plant parents are infected before the plants detach from it. It could happens during asexual reproduction or in seeds of sexual reproduction.
That means, the infection spread before the plant raised in the sterile environment. 
Answer 2
This can be explained by the concept of vertical transmission of a virus, i.e., the virus is inherited from a parent. During asexuak reproduction, the offspring is genetically identicle to the parent. Here, during the development of the offspring through the stem, root or bulb of the parent, the parent's virus is passed to the offspring. In sexual reproduction, viral transmission occurs as a result of seed infection.

Related Questions

Bones are classified by whether they are weight-bearing or protective in function.
a. True
b. False

Answers

FALSE

Bones are classified according to the shape: long, short, flat, irregular, sesamoid and sutural.

What is the correct order for the reactions of the calvin cycle?

Answers

The reactions of the Calvin cycle add carbon (from carbon dioxide in the atmosphere) to a simple five-carbon molecule called RuBP. These reactions use chemical energy from NADPH and ATP that were produced in the lightreactions.

The correct order for the reactions of the calvin cycle is  Carboxylation → reduction → Regeneration.

What is calvin cycle?

A series of chemical reactions known as the Calvin cycle, light-independent reactions, biosynthetic phase, dark reactions, or photosynthetic carbon reduction cycle of photosynthesis occurs during the phase of photosynthesis in which carbon dioxide and hydrogen-carrier compounds are converted into glucose.

Carbon dioxide is fixed during the first stage of the Calvin cycle, which is also the stage in which the light-independent processes begin. ATP and NADPH are responsible for the reduction of 3PGA to G3P during the second stage of the C3 cycle. After then, ATP and NADPH undergo a reaction that produces ATP and NADP+. RuBP is regenerated during the last stage of the process.

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What would happen if a fresh water fish did not produce lots of watery urine

Answers

The answer is that the Water would move out of the fish by osmosis. If a fresh water fish did not produce lots of watery urine means that the content of the fish would be hypotonic to the outside environment, therefore water would move out of the fish through osmosis decreasing the amount of water inside the fish's body.

Benjamin Franklin gathered scientific data to chart the Gulf Stream with his cousin, ship captain, Timothy Folger. Why was this important in the 1700s? (1 point)

Migratory birds could be monitored when using the currents.
Sailing ships could be redesigned to use the currents.
Ships could then take advantage of the currents to speed up travel.
Weather predictions could be made based on current speed and direction.

Answers

The scientific data that Benjamin Franklin gathers on the Gulf stream was important in the 1700's because ships could take advantage of the currents to speed up travel. Up to that time, they were unaware of how a ship traveling in one direction could reach their destination so much faster than a ship traveling in the opposite direction.

Answer:

c

Explanation:

Ships could then take advantage of the currents to speed up travel.

Select the reasons why the term 'prokaryote' can be problematic.
It implies that prokaryotes existed before eukaryotes.
It implies that eukaryotes evolved from prokaryotes.
Prokaryote and eukaryote are used as a result of an evolutionary worldview.




Select effects of bacteria on the world around us.
food spoilage
flavor food
make cheese
make yogurt
causes Measles
decomposition

Answers

1. Answer:
It implies that prokaryotes existed before eukaryotes.
It implies that eukaryotes evolved from prokaryotes.
Prokaryote and eukaryote are used as a result of an evolutionary worldview.

All of the three sentences is true. The word "pro-" from prokaryotes means "before". So, prokaryotes sound like an organism that exists before eukaryotes. If you link it with evolution, you can assume that eukaryotes were prokaryotes that evolved.

2. Answer:
food spoilage
flavor food
make cheese
make yogurt
decomposition

Measles can be excluded easily because it was caused by virus, not bacteria. Food spoilage is caused by bacteria. That is why food preservation method would result in killing/inhibiting bacteria. Decomposition is similar to spoilage. Bacteria also used for fermentation in cheese, yogurt or beer.

Steve is a 28-year-old triathlete who constantly consumes a healthy diet. he refuses to eat anything that he deems "unhealthy." he will rarely eat out with friends and even refused to eat a meal that his grandmother cooked for his birthday. he is extremely calorie and nutrient conscious. which condition might you suspect?

Answers

Steve has orthorexia nervosa. Orthorexia nervosa is an obsession with healthy food that the person deemed healthy, purely based on his own judgment with no scientific or nutritional basis. Compared to other existing eating disorders, orthorexia is not yet formally recognized in the DSM.


At which latitude would the sun be directly overhead at noon on April 21?


8°N

8°S

23.5°N


Answers

Final answer:

On April 21, the sun would be directly overhead at the equator (0° latitude) as the sun is beginning to shift from the equator towards the northern hemisphere.

Explanation:

On April 21st, the sun is directly overhead at the equator, which is at 0° latitude. During the equinox, which occurs roughly around March 21st and September 21st, the sun's rays are perpendicular to the Earth's surface at the equator. By April 21, the sun is beginning to shift northward but has not reached its maximum declination of 23.5°N, which happens during the summer solstice in late June. Therefore, the sun is still overhead at the equator at this time.

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A modulator that increases protein function by binding to a protein distant from the binding site is called __________. a modulator that increases protein function by binding to a protein distant from the binding site is called __________. allosteric inhibitor a competitive inhibitor a cofactor allosteric activator

Answers

Which phrase includes “being equal to 50”?

Preparing the body for the "fight-or-flight" response during threatening situations is the role of the ___

Answers

Preparing the body for the flight-or-fight response during threatening situations is the role of the sympathetic nervous system (SNS). It is one of the two divisions of the Autonomic nervous system. The other system is the parasympathetic nervous system (PNS).
 
The effects of the SNS accelerates the body's response. It increases digestion, heart rate, and respiration to build energy to either run away or fight, hence the term flight or fight response. 

How are fossils helpful in identifying ancestral and derived traits of organisms?

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Fossils can give us direct evidence of the character states of extinct lineages. For example, all modern birds lack teeth. Is the lack of teeth an ancestral or a derived condition? If we examine extinct species of theropods we see that they had teeth. Therefore we know that the lack of teeth is a derived condition in modern birds.

Compare the lymphatic system with the cardiovascular system

Answers

The circulatory system is the combination of the lymphatic system and the cardiovascular system. It comprises of the heart, blood vessels and blood as well as lymph, lymph nodes, and lymphatic vessels. It controls the whole transportation activity in the body.

PLEASE HELP AND HURRY WILL GIVE BRAINLIEST
Which cell letter from the graphic organizer matches the fungus structure that releases digestive enzymes and absorbs digested organic material?
A. A
B. C
C. D
D. E

Answers

Answer: B hypha and D rhizoids

Explanation:

most of the fungi are saprotroph. They secretes digestive enzymes from hypha (B) of the mycelium on the dead and decaying matter. Digestive enzymes digest complex organic materials into simpler and soluble form in the external medium. With the help of root like structure called rhizoids (D) absorb nutrients from external medium into their body.

Final answer:

The fungal structure that releases enzymes and absorbs nutrients is the mycelium, made of hyphae; however, without the graphic organizer, an exact letter match can't be provided.

Explanation:

The fungus structure that releases digestive enzymes and absorbs digested organic material is known as the mycelium, composed of hyphae. These hyphae are specially adapted to maximize their surface area to volume ratio, ensuring efficient nutrient absorption following the extracellular digestion that occurs when the fungus releases hydrolytic enzymes into the environment. Since the list of options (A, B, C, D, E) provided from the graphic organizer does not directly correspond to the detailed structure of fungus, none of the options can be chosen with confidence without seeing the graphic organizer itself.

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A researcher places dogs in a cage with metal bars on the floor. the dogs are randomly given electric shocks and can do nothing to prevent them or stop them. later, the same dogs are placed in a cage where they can escape the shocks by jumping over a low hurdle. when the shocks are given, the dogs do not even try to escape. they just sit and cower. this is an example of

Answers

For the answer to the question above based on the what is stated from above that when the shocks are given, the dogs do not even try to escape. they just sit and cower. This is an example that these dogs learned helplessness.
This is animal cruelty too.

The answer choices to this question are:

a.       Learned helplessness.

b.      Stimulus discrimination. 

c.       Aversive conditioning. 

d.      Vicarious learning.

The best answer choice is:

a. Learned helplessness

Explanation: Learned helplessness was studied by Seligman as a potential animal model of depression. Learned helplessness occurs when people or animals feel helpless to avoid negative situations. Martin Seligman first observed learned helplessness when he was doing experiments on dogs. He noticed that the dogs didn't try to escape the shocks if they had been conditioned to believe that they couldn't escape.

​________ is acute or chronic pain that occurs because of a​ tumor, arthritis, or an hnp.

Answers

The correct answer is "radiculopathy".

This is described as acute or chronic pain associated with the nerve roots located in the spinal cord. A tumor compressing the nerve roots; arthritis wherein swelling also involves the nerve roots; or a herniated nucleus pulposus or HNP which compresses the nerve roots will produce radiculopathic pain.

What is the dark, organic-rich material that develops when the decay of plant material is slowed by the of lack of oxygen under waterlogged conditions?

Answers

This is what is commonly know as 'peat'.  Peat is found in peatlands, bogs, mires and moors, and is an accumulation of partially decayed vegetation or organic matter. The decay is slowed down by a lack of oxygen due to waterlogged conditions. These areas are very important carbon sinks as the CO2 released by the decaying matter is trapped within the peat. It requires thousands of years for peatland to develop. Peatlands are very important as they provide a record of past vegetation and climate within the preserved plant remains.

Scientific study of the population cycles of the snowshoe hare and its predator, the lynx, has revealed that

Answers

This scientific study revealed that predation is the dominant factor affecting prey population on cycling. Population cycles is the feature where populations rise and fall over a predictable period of time. For example there are some species where population numbers have reasonably predictable patterns of change. From the study depicted in the question; when snowshoe hares are scarce, many lynx leave their home range in search of food. An increased predation of the hare due to high populations of lynx and other predators increases the decline in the hare population.

The parents of a 2-year-old arrive at the hospital to visit their child. the child is in the play room and ignores the parents during the visit. the nurse tells the parents that this behavior in a 2-year-old child indicates which?

Answers

There is not any answer choices to choose from, so I'm assuming that behavior is commonly linked to depression or anxiety.

What type of succession will follow if Jones High School was to be abandoned for 20 years due to a serious storm? state why?

Answers

Primary succession would occur. The buildings would slowly collapse, effectively meaning that plants would need to colonise bare concrete, with no previous life existing. On could envisage that seeds of some pioneer plants could germinate within cracks forming in the concrete. Some wild animals might take shelter in the degenerating structures, adding nutrients to the ground. Eventually, the walls of the structures would be mostly collapsed, and a layer of soil would cover most of the structure.  

Exposure to UV rays can cause

Answers

it can cause premature aging liver damage and also eye problems
exposure over long periods of time can cause skin cancer, or a sunburn.

What fraction of this cross will be recessive for both traits?

Answers

3/5 of the cross will be ressesive

Why do humans have bigger pulvic bones than four legged animal?

Answers

Humans have bigger pelvic bones than four legged animals because animals and humans share more than 70% of our DNA with animals so as the animals get smaller, our bones become bigger.

Solar energy from the Sun's rays is absorbed by the Earth's land and water surfaces. This absorbed energy is then radiated back to the atmosphere as infrared radiation. Most of the radiation cannot be transmitted and is absorbed by the atmosphere. This absorption adds heat to the atmosphere and helps keep the Earth warm enough to support life. The process described above is known as

Answers

Answer: The process described above is known as:

Thermal Radiation.

Explanation: Thermal radiation is an electromagnetic radiation generated by the thermal motion of particles in matter.

The greenhouse effect is the process where solar energy absorbed by the Earth's surface is radiated back as infrared radiation, which is mostly absorbed by greenhouse gases, thus warming the atmosphere.

The process described above, where solar energy is absorbed by the Earth's surface and then radiated back into the atmosphere as infrared radiation, most of which is then absorbed by the atmosphere and greenhouse gases, is known as the greenhouse effect. This effect helps to keep the Earth warm and is vital for sustaining life. The greenhouse effect is a natural process and without it, the Earth's average temperature would be significantly lower, making it inhospitable to most forms of life.

The incoming solar radiation, which is mostly in the form of shortwave radiation including visible light, ultraviolet, and some infrared, is absorbed by the land and oceans, heating the Earth's surface. This heat is then emitted as longwave infrared radiation. Greenhouse gases, such as water vapor, carbon dioxide, and methane, absorb this infrared radiation and then reradiate the heat back to the Earth's surface, maintaining the Earth's temperature.

Bottom trawling is considered destructive because _______.
a.
it destroys sea floor habitats
b.
it depletes fish populations
c.
it shatters deep-sea coral
d.
all of the above

Answers

Answer:

the answer is ALL OF THE ABOVE

Bottom trawling is considered destructive because it destroys seafloor habitats, depletes fish populations, and it shatters deep-sea coral. So, it's D i.e. all of the above.

What do you mean by Habitat?

Habitat may be defined as a type of natural environment for which a particular species is best adapted due to natural selection.

Bottom trawling is an activity of fishing practice that herds and grasps the target species by hauling a net along the seafloor.

This activity creates a disturbance along the seafloor which leads to the population depletion of fishes and destructs the deep-sea coral.

Therefore, the correct option for this question is D.

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Give an example of how you could determine whether or not a trait was displaying incomplete dominance. What would you do? What would your results have to be for the trait to be incomplete dominant?

Answers

An example of incomplete dominance is: A snapdragon flower that is pink as a result of cross-pollination between a red flower and a white flower when neither the white or the red alleles are dominant.

Answer:

If one has to find that whether a trait is showing incomplete dominance, then post-mating the two species should produce an offspring that will demonstrate an intermediate character of the two parents. For example, in snapdragon flower, when red-colored flowers were crossed with the white one, the F1 generation exhibited all pink flowers, that is, a trait, which is an intermediate between the two.  

The outcomes, which shows that whether a trait is incomplete dominant are that the F1 generation should exhibit an intermediate character of the two parents, and the F2 progeny should exhibit a phenotypic and genotypic ratio of 1:2:1.  

An rn enters a client's room and observes the unlicensed assistive personnel (uap) forcefully pushing a client down on the bed. the client starts crying and informs the uap of the need to go to the bathroom. what action is the rn witnessing that should be immediately reported to the supervisor?

Answers

Answer: Battery

The act of the unlicensed assistive personnel to the client can be considered battery for it intentionally and forcefully pushing the client down on the bed that cause the client to cry. In addition, battery is the harmful, offensive or unauthorized touching of another person with a high degree of certainty to harm another person.

 

If a strand of dna has the nitrogen base sequence 5'-atttgc-3', what will be the sequence of the matching strand? if a strand of dna has the nitrogen base sequence 5'-atttgc-3', what will be the sequence of the matching strand? 3'-atttgc-5' 3'-taaacg-5' 3'-uaaacg-5' 3'-tuuucg-5' 3'-gcaaat-5' submitrequest answer part b if a dna double helix is 100 nucleotide pairs long and contains 25 adenine bases, how many guanine bases does it contain? if a dna double helix is 100 nucleotide pairs long and contains 25 adenine bases, how many guanine bases does it contain? 200 150 25 50 75

Answers

It contains 25 guanine bases.

All animals can trace their lineage to a common ancestor that lived in the _____. see concept 32.2 (page 673)

Answers

The best answer is Neoproterozoic era. Neoproterozoic Era is the unit geologic time from 1000 to 541 million years ago. It is the last era of the Precambrian Supereon and the Proterozoic Eon; it is subdivided into the Tonian, Cryogenian, and Ediacaran Periods. It is preceded by the Mesoproterozoic  era and succeeded by the Paleozoic era.

A change in the gene pool of a population over time is called adaptation natural selection evolution survival of the fittest

Answers

Evolution is the change in the gene pool of a population over time

The number of individual organisms born into a population in a given year

Answers

That's called a birthrate. The number of individual organisms born into a population in a given year.
it is called the birth rate

What type of catastrophic event, which left a slight crater in the Yucatan Peninsula and iridium rich soil nearby, is thought to have possibly caused the extinction of the dinosaurs?

A)a tsunami 
B)a volcano
C)a meteorite
D)an earthquake

Answers

D. A Meteorite

hope this helped

Answer:

Option C, A meteorite

Explanation:

It is believed that a celestial object has hit the earth some 60 million years ago which has caused the extinction of dinosaurs. This celestial object is believed to be either an asteroid or a meteorite. As per the latest research by scientist it is believed that the dinosaurs were   killed by the great tsunami caused by the collision of asteroid with planet earth.

Hence, option C is correct

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A primigravid client, age 20, has just completed a difficult, forceps-assisted delivery of twins. her labor was unusually long and required oxytocin augmentation. the nurse who's caring for her should stay alert for: A recipe calls for 1 1 2 cups of flour. how many cups will you need if you are preparing 5 batches of the recipe? If two oscillators connected to speakers create frequencies of 594 hz and 600 hz, what is the beat frequency when you hear both at the same time? hz Situation: A 15 gram sample of a substance that's a by-product of fireworks has a k-value of 0.1405. N Noe No initial mass (at time 0) N mass at time t k a positive constant that depends on the substance itself and on the units used to measure time t time, in days what triangle congruence theorem is needed? how many molecules of HBr are present in 42.5 grams of HBr The _______ movement developed a great interest in the classical world, including Greek and Roman studies of poetry, ethics, science, and rhetoric.A. medieval B. Hellenist C. heliocentric D. humanist a coin is tossed twice what is the probability of the coin landing heads up both times How does ponyboy feel about fighting ? How do the other greasers feel about it A particular computer takes 13 minutes to download a 39-minute TV show. How long will it take the computer to download a 2-hour movie? ________ is the process of converting a poorly-structured table into two or more well-structured tables. optimization normalization refactoring standardization Name two easy ways to cut down on calories during the week. Give an example of whats considered one serving for each of the followingfood groups: starch, fruit, vegetables, protein, dairy, and fat. Describe the difference between a product thats reduced and one thats low-fat. By law, what are the four required elements that a food label must contain? The % Daily Values information on a food label is based on a diet of _______ calories. Low fat means used on a food label means there are fewer than ______ grams of fat per serving. Soymilk thats labeled more calcium must contain _______% more calcium than regular soymilk. The importance India has placed on gains in labor and service jobs creation is because India can A)compete because fewer people in India need entry level jobs. B)compete with higher wages than wages in nations such as Mexico and Canada. C)ship most of their job to other nations such as China and the United States. D)compete with lower wages than wages in nations such as Canada and the United States. which expression is equivalent to 424x6y 128x4y5 Which of the economic goals correlates with the explanation "the ability of people to make choices"?A.equityB.innovationC.efficiencyD.freedomI got D as my answer, is that correct?, 4. An airplane at T(80,20) needs to fly to both U(20,60) and V(110,85). What is the shortest possible distance for the trip? 165units 170units97units169 unitsis the answer A? . Classify the triangle according to side length and angle measurement. (1 point)isosceles; rightequilateral; obtusescalene; acutescalene; right In which graph does y vary directly as x? Its not C, I got it wrong. What recommendation from the Dietary Guidelines for Americans will help you get the nutrients you need? What evidence would you select to refute Hoover's statement about the American economy? A)Hoover engaged in many unprecedented public works programs, including an increase in construction programs of over $400 million. B)Under Hoover's administration, the effects of the Great Depression continued to worsen and the American economy did not improve until Roosevelt's presidency. C)In 1928, Hoover embarked on a seven-week goodwill tour of several Latin American nations to outline his economic and trade policies to other nations in the Western Hemisphere. Eliminate D)In 1931, Hoover issued the Hoover Moratorium, calling for a one-year halt in reparation payments by Germany to France and in the payment of Allied war debts to the United States.