Answer:
Restriction enzyme
Explanation:
Gel electrophoresis is a process or a technique in which fragments of DNA are separated in terms of their sizes.The restriction enzyme is mixed with a DNA sample before the process. The restriction enzyme cut DNA at specific points into fragments which can then be separated based on their sizes on an agarose gel.When current is applied to the gel DNA move towards the positively charged electrode since DNA is negatively charged, with shorter fragments migrating faster through the gel in comparison with large fragments.Tsunamis are _____.
waves that are produced by tidal forces
waves that cannot cause damage on land
often generated by movements of the ocean floor
also known as tidal waves
Tsunamis are often generated by movements of the ocean floor.
Option C
Explanation:
Tsunamis are huge gain ocean waves which are able to generate massive destruction, this huge damage can cause environmental distress. These waves are produced by earthquakes or underwater landslide. Mostly the tsunamis generated due to earthquake, induced movement by the ocean floor. These tsunami waves are generated more by the ocean floor which have greater length. They travel as fast as jet planes and within seconds can cover the whole area.
what must be done to breed dogs for a particular trait
Answer:
Selective breeding
Explanation:
In order to get a dog that has specific desirable trait/s, then the owners of the dogs have to get involved. The involvement should be in the manner of only allowing dogs that have the same trait to breed between each other, but in no case to be allowed to breed with other dogs that do not posses that particular trait. In this way, the offspring will inherit the desirable trait from their parents, and if the selective breeding continues, then there will be a new dog type on the scene that will be unique by its trait/s.
_____ is all the individuals of a species that live together in an area.
Community
Population
Ecosystem
Ecosystem is the correct answer
What type of relationship do humans and honeyguides have? Explain your response.
The bird leads the humans to the honey and both species come out of the deal happier than when they went in. In biological terms, this is mutualism. Though humans get something out of it, we are undoubtedly being exploited in the process.
how does the presence of similar fossils on different continents support the idea of tectonic plate movement?
when the tectonic plates move the bones are carried from one place to another
The presence of similar fossils on different continents supports the idea of tectonic plate movement because it indicates that these continents were once connected in a landmass known as a supercontinent, and they have since drifted apart due to the movement of tectonic plates.
What are tectonic plates?Tectonic plates are large pieces of the Earth's lithosphere (the outermost solid layer of the Earth) that move and interact with each other. These plates can be thought of as giant puzzle pieces that fit together to form the Earth's surface.
When tectonic plates move, they can carry the continents they support along with them, leading to the separation of previously connected landmasses.
For example, the fossil remains of the freshwater reptile Mesosaurus have been found in both South America and Africa, which suggests that these continents were once connected.
The presence of the same species in two separate locations indicates that they were once a single population and that they were likely separated when the landmass they lived on split apart.
This observation supports the theory of continental drift and plate tectonics, which explain the movement of the Earth's continents over time.
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A geologist concludes that a rock sample is an extrusive igneous rock. Based on this information, which statement about the rock is accurate?
A. The rock formed from cooling lava. B. The rock cooled slowly over millions of years. C. The rock likely came from a pluton. D. The rock formed within Earth's crust.
A. The rock formed from cooling lava
Hope this helps chu
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Answer:
the accurate answer to this question is the rock is forming by lava
hope this helps
Explanation:
A dog gets into a fight with another dog and suffers bite wounds on its stomach and near its left front leg. Which terms would a veterinarian use to describe this injury?
A.
bite wounds on ventral and left, posterior areas
B.
bite wounds on dorsal and left, anterior areas
C.
bite wounds on ventral and left, anterior areas
D.
bite wounds on dorsal and left, posterior areas
E.
bite wounds on ventral and right, anterior areas
C. bite wound son ventral and left, anterior areas
Ventral = underside/stomach
Left = left side
Anterior = nearer the front
C. Bite wounds on ventral and left, anterior areas
Ventral would be the stomach, or in other words in the abdominal area.
Left would be the left side of the body.
Anterior would be the area located close to the head.
I hope this helps! :)
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Which best describes the main sources of energy in the United States?
A. Wind, nuclear,natural gas
B. Solar, wind, hydroelectric
C. Geothermal,biomass,solar
D. Coal,oil,natural gas
Answer:
D
Explanation:
Most of the energy in the United States comes from the burning of fossil fuels (coal, oil, natural gas). Hope this helps!
Answer:
D. Coal,oil,natural gas
Explanation:
The main sources of energy in USA are non renewable sources of energy like coal, oil and natural gas. Oil is the main source of energy in USA while coal stands second as a source of energy. Apart from these two, natural gas is also widely used in USA as an energy source. Non renewable sources of energy are also known as conventional sources of energy. Alternate sources of energy which are also known as renewable sources of energy like wind, solar hydroelectric, geothermal energy etc. are not used commonly as main sources of energy in USA.
What type of virus uses RNA , and not DNA, as its genetic material?A. Retroviruses. B. Parvoviruses. C. Adenoviruses. D. Bacteriophages
Answer:
A
Explanation:
When these viruses insert their genome into the host cell, they usually have a reverse transcriptase enzyme that converts the RNA to DNA before it is integrated into the host genome. This is before the host cell machinery is hijacked to replicate the viruses components.
Answer:
A
Explanation:
Over the past two hundred years, cities around the world have grown. The rapid population increase and industrialization of urban areas have, in turn, had a great impact on the local environments.
Urban governments have been concerned with all BUT one of the following environmental problems. That is
A) contaminated run-off.
B) reduced precipitation.
C) insufficient garbage collection.
D) air pollution from factories and vehicles.
The answer is B: reduced precipitation
Answer:
The answer is B. reduced precipitation
Explanation:
Urban governments have been concerned with all of the listed environmental problems except reduced precipitation. At this time, drought is a world-wide concern.
During respiration, what do consumers such as animals release?
water
oxygen
carbon dioxide
food
Answer:
Carbondioxide and water
Explanation:
During respiration food molecules are broken down to release energy. During this process oxygen is required and not formed but Carbondioxide and water is liberated as byproduct. So the closest answers are Carbondioxide and water
During respiration, consumers such as animals release the carbon dioxide gas into atmosphere. Thus, the correct option is C.
What is Respiration?Respiration can be defined as a metabolic process wherein, the different living cells of an organism can obtain energy in the form of ATP(Adenosine triphosphate) by taking in the oxygen gas and liberating carbon dioxide gas from the oxidation of complex organic substances into the atmosphere.
Carbon dioxide is the main gas or the by-product which is released back into the atmosphere during the respiration of consumers, which then breaks down to glucose molecule and other complex organic compounds and gets converted into the carbon back to carbon dioxide for reuse by the producers.
Therefore, the correct option is C.
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What type of power does this structure produce?
Answer:
A-Hydroelectric, hydro means water
Explanation:
The correct answer is A) hydroelectric.
The type of power that this structure produces is hydroelectric.
In times when we need to take care of the environment, hydroelectric power is a good way to produce electricity in large cities.
Also known as hydroelectric energy, this form of renewable energy is "environmentally friendly" in that it uses the power of water -the movement of water- to generate electricity. That is why governments invest in public infrastructure and built dams that help to produce electricity.
How many oceans are their on earth
Answer:
The answer to your question is 4. The earth has four oceans.
Explanation:
The four oceans that we have are: The Pacific, Atlantic, Indian, and Arctic.
Hope this helped! God bless.
There are five oceans on Earth. Each ocean leads into the next, creating one huge expanse of water, covering 71 percent of Earth's surface.
The smallest ocean is the Arctic Ocean, with an area of 5,880 sq. mi. (9,485 sq km).
The Pacific Ocean is by far the biggest ocean. It covers nearly one-third of Earth's surface!
Which best describes ideal growing conditions for fungi?
A. moist and warm
B. hot and dry
C. cool and damp
D. wet and cold
Answer:
A: most and warm
Explanation:
Answer:the answer would be moist and warm because the fungi would react with water and the right temperature would greatly help in growth
E
why are scientists who are searching for life on other planets studying archeabacteria
Answer: Archaebacteria can survive in extreme environments similar to those on other planets and are good indicators of how extra-terrestrial life would function.
Explanation: Archaebacteria resemble the earliest cells found on Earth and are extremophiles who can live in hot, acidic environments without oxygen (anaerobic).
Conservation methods are needed worldwide for many reasons. All but one is a reason to support conservation.
A) global population growth
B) global capacity to provide sufficient food
C) geographical mismatch between food demand and supply
D) undiscovered lands will provide plenty of natural resources
Undiscovered lands will provide plenty natural resources
Answer:
D) undiscovered lands will provide plenty of natural resources
Explanation:
Before the end of the Second World War, there were no studies published in a massive way in order to point out the need to conserve nature for new and future generations. This represented a paradigm of the economy that observed ecology in a profound way, with higher values to human beings than to forests. At the time, the concept of the main economy consisted of the fact that natural resources are not scarce, starting from this concept began to establish conservation methods to preserve mineral resources.
Conservation methods are needed worldwide for several reasons. The factors that highlight the need to support these conservation methods are:
global population growth global capacity to provide sufficient food geographical mismatch between food demand and supplyWhat climate condition occurs during El Niño?
During El Niño, there are warmer sea surface temperatures in the Pacific Ocean, resulting in altered weather patterns globally. It can cause both heavy rainfall and flooding in some areas, and drought conditions in others. For instance, it can lead to an increase in the population of deer mice in the southwestern United States.
Explanation:The climate condition that occurs during El Niño is characterized by warmer-than-average sea surface temperatures in the central and eastern tropical Pacific Ocean. This leads to changes in ocean currents and atmospheric circulation, resulting in altered weather patterns around the world.
During El Niño, the normally dry western coast of South America experiences increased rainfall, while regions such as Southeast Asia and Australia may experience drought conditions. The impacts of El Niño can include heavy rainfall, flooding, and storms in some areas, while other regions may experience dry conditions and decreased rainfall.
For example, during El Niño, the southwestern United States may experience increased rainfall, leading to ecological changes such as an uptick in the population of deer mice, which can carry diseases like Sin Nombre (hantavirus).
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El Niño is a climate condition characterized by the warming of ocean surface temperatures and weakening of trade winds. It affects rainfall patterns, temperature, and can lead to flooding, droughts, and changes in tropical cyclones. El Niño disrupts normal climate patterns and has worldwide impacts on weather.
Explanation:El Niño is a climate condition that occurs in the equatorial Pacific Ocean. It is characterized by the warming of the ocean surface temperatures and the weakening of the trade winds. During El Niño, there are several climate effects that can be observed worldwide, including changes in rainfall patterns and temperature.
In the Americas, El Niño brings wetter conditions to the western coast of South America, leading to heavy rainfall and flooding in some areas. It also leads to drier conditions in parts of Southeast Asia and Australia, causing droughts and wildfires. El Niño can also affect the strength and frequency of tropical cyclones in the Pacific and Atlantic Oceans.
Overall, El Niño disrupts the normal climate patterns and can have significant impacts on weather conditions around the world.
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fuel that is formed from burning recently living, organic products is
Answer:
Biomass fuel
Explanation:
Here is where i found my information. https://quizlet.com/76893830/other-organic-fuels-flash-cards/
Answer:
biomass fuel! it s correct!
Explanation:
Which kingdoms include organisms with cell walls?
I. Archaebacteria
II. Fungi
III. Plantae
IV. Animalia
V. Protista
VI. Eubacteria
Answer:
Archaebacteria, Eubacteria, Plantae, Fungi, and Protista.
Explanation:
Eubacteria has cell walls with peptidoglycan. Archaebacteria has cells walls without peptidoglycan. Protista has cells walls of cellulose in some. Fungi has cell walls of chitin. Plantae has cell walls of cellulose.
The kingdoms include organisms with cell walls are Archaebacteria, Fungi, Plantae, Protista, Eubacteria.
What are the Fungi?
The cell wall is a feature shape of fungi and consists specially of glucans, chitin and glycoproteins. As the additives of the fungal cell wall aren't found in humans, this shape is a brilliant goal for antifungal therapy.
The five-kingdom organisms of type for dwelling organisms, inclusive of the prokaryotic Monera and the eukaryotic Protista, Fungi, Plantae and Animalia is complex through the invention of archaebacteria.
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What does blood pressure do?
plays a role in circulation
monitors body functions
supports respiration
provides gas exchange
Answer:
Plays a role in circulation
Explanation:
When your heart beats, it squeezes and pushes blood through your arteries to the rest of your body. This force creates pressure on those blood vessels, and that's your systolic blood pressure.
Hope this helps :)
the answer is plays a role in circulation
Which of the following is not an example of the use of a pheromone?
a.
Wolves mark their territories by urinating at the boundaries.
b.
Hyenas give off an odor that keeps different clans of hyenas apart.
c.
Poisonous snakes wind around each other and butt heads.
d.
Skunks release a rotten odor when they are threatened.
Answer:
A. because research not show yet about pheromones for wolves
which type of scientific statement is defined as a statement of fact that is generally accepted to be true and universal because it has always been observed to be true? options: theory, probability, law, hypothesis.
Answer:
law
Explanation:
Answer:
law
Explanation:
How does aging affect the nervous system?
Answer:neurons die at an increased rate
Explanation:
Did in Health science
While aging brings these changes to the nervous system, it's important to note that the extent and rate of these changes can vary among individuals. Staying mentally and physically active, maintaining a healthy lifestyle, and managing underlying health conditions .
Neuronal Loss: With age, there is a gradual loss of neurons (brain cells), particularly in regions like the hippocampus and prefrontal cortex, which are important for memory and cognitive functions. This neuronal loss can contribute to cognitive decline.
Slower Processing: Aging often leads to a reduction in the speed of information processing, which can result in slower reaction times and difficulty with tasks that require quick thinking and decision-making.
Reduced Neurotransmitter Levels: There is a decline in the levels of certain neurotransmitters, such as dopamine and serotonin, which can affect mood, motivation, and emotional regulation. This can be associated with an increased risk of mood disorders like depression.
Changes in Brain Structure: The brain undergoes structural changes with age, including shrinking in volume and changes in the distribution of white and gray matter. These structural changes can impact cognitive function and memory.
Decreased Plasticity: Neuroplasticity, the brain's ability to adapt and learn, decreases with age. This can make it more challenging to acquire new skills or adapt to new situations.
Impaired Sensory Functions: Aging often leads to diminished sensory functions, such as reduced vision and hearing, which can impact perception and communication.
Increased Risk of Neurological Conditions: The risk of neurological conditions like Alzheimer's disease and Parkinson's disease increases with age. These conditions can have profound effects on cognitive and motor functions.
Decline in Motor Function: The nervous system's control over motor functions can be affected by aging, resulting in decreased coordination and balance.
Vascular Changes: Aging can lead to changes in blood vessels, including reduced blood flow to the brain. This can contribute to cognitive impairment and an increased risk of strokes.
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when a pod of dolphins work together to concentrate together a school of fish, they are displaying what? A. parasitism B. mutualism C. cooperation D. competition
The answer is C. Cooperation
Answer:
c cooperation
Explanation:
**WILL BE PUT AS BRAINLIEST**
Which of the following adaptations in wooly mammoths would have best prevented their extinction?
A. Shedding of fur
B. Darker colour of fur
C. Growth of an extra layer of fur
D. Increase in thickness of fur
Answer:
I think it is D
Explanation:
Answer: A shedding of fur
Explanation:
The primary colors are_.
A.red, green, purple
B.yellow, blue, green
C.yellow, blue, red
D.blue, orange, red
Answer:
yellow, blue, and red are the primay colours
Answer:
The answer is C.) yellow, blue,red.
Explanation:
People have slowly realized the importance of managing and maintaining ecosystems. Match the environmental issues with their most appropriate solutions.
an increase in air pollution
a decrease in the number of trees
the loss of a bird habitat
an endangered aquatic species
provide nesting boxes
encourage the use of public transport
regulate recreational activities such as boating and fishing
plant new trees and protect existing trees
Answer: A decrease in a number of trees—plant new ones and protect existing trees
The loss of a bird habitat—provide nesting boxes
An endangered aquatic species— regulate recreational activities such as boating and fishing
A increase in air pollution— encourage public transportation
I hope this helps!
Answer: 1.An increase in air pollution. : Encourage the use of public transport.
2. A decrease in the number of trees.: Plant new trees and protect existing trees.
3. The loss of a bird habitat.: Providing nesting boxes.
4. An endangered aquatic species.: Regulate recreational activities such as boating and fishing.
Explanation:
1. The air pollution increases due to the discharge of partially combusted gases released from vehicles like carbon dioxide, carbon monoxide and others. These gases pollute the air. Thus, the use of vehicles should be minimized. Thus people should use public transport to reduce pollution.
2. The trees may reduce in number due to clear cutting, deforestation and because of other reasons. The population of trees in a region can be restored by growing plants.
3. The decrease in bird population may be because of habitat loss, pollution and climatic changes. The population of birds can be restored by providing them with boxes to stay as nest.
4. An endangered species is one which is left with limited population. An endangered aquatic species population can be managed by regulating the recreational activities as human beings may directly or indirectly affect them by throwing garbage to water bodies, oil spill and by other ways.
Which amino acid sequence corresponds with the polypeptide strand AUG CCG UAC GAG UAA? Do not include the start and stop codons.
A)
arginine serine glycine
B)
proline phenylalanine aspartic
C)
proline tyrosine glutamic acid
D)
arginine tyrosine glutamic acid
Answer:
THE ANSWER IS C i just did it on usa test prep
Explanation:
What factor maintains the same distance between strands in a DNA molecule?
A. pairing of double-ringed bases with triple-ringed bases
B. pairing of single-ringed bases with double-ringed bases
C. pairing of double-ringed bases with double-ringed bases
D. pairing of single-ringed bases with single-ringed bases
pairing of single-ringed bases with double-ringed bases
Answer:B
Answer:
b
Explanation:
What is the function of heart valves?
Answer:
They ensure blood flows in one direction throughout the heart
Explanation:
The heart has 4 valves namely;
The mitral and tricuspid valves which control the flow of blood from the atria to the ventriclesThe pulmonary and aortic valves which control the flow of blood out of the ventricles.When blood passes through the valve, the valve prevents the back flow of the blood as the muscles of the heart contracts and relaxes.
Answer:
I believe it is
They prevent blood from flowing backwards