Answer:
Ecosystems have the potential to be sustainable over long periods of time. Something is sustainable if it can continue indefinitely depending on nothing but itself. The concept has become increasingly well-known as it has become evident that current human uses of resources, mostly fossil fuels, are unsustainable.
Explanation:
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A region where the flora, fauna and microorganisms together with the abiotic factors live together is called an ecosystem.
The ecosystem has a flow of energy and nutrients. Ecosystems have the potential to sustain over a longer duration.
Sustainability is a source or resources that can be used indefinitely without compromising future needs.
The nutrient cycle of the ecosystem can be recycled but the energy flow of the system cannot be.
If the particular ecosystem can maintain its function and structure over some time will be sustainable.
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sub-saharan africans show the largest genetic diversity of any human population. this is likely to have resulted from a. a small breeding population, maintaining genetic diversity. b. the accumulation of genetic mutations over long periods of time. c. the introduction of genetic diversity from europe and asia. d. the accumulation of genetic mutations over the last 10 years.
accumulations of genetic mutations over time.
Genetic and epigenetic changes compound over time to cause cancer. While aging and chronic inflammation are the major causes of epigenetic changes, carcinogenic substances, UV radiation, and other conditions can also cause genetic changes. Our prior exposure levels and life history are reflected in the accumulation and patterns of changes in normal cells. The majority of accumulated changes are regarded as passengers, although they are linked to cancer drivers as they accumulate. Although only hypothesized for genetic changes, this has been demonstrated for aberrant DNA methylation. However, modern technology has made it possible to assess uncommon point mutations, and research has revealed that the rates of their accumulation do actually correspond with cancer risk.
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Where can the following organelle be found:
Chromosomes
Prokaryotic Cells
Animal Cells
Plant Cells
Which one of the following factors does NOT affect Earth’s climate?
A. Ocean Currents
B. Energy from the Sun
C. Elevation
D. Soil Composition
Answer:
D
Explanation:
its just not any other one
Our soil cleans our water, feeds our trees and crops with vital nutrients, and controls numerous significant greenhouse gases in addition to helping to maintain the Earth's temperature. Thus option D is correct.
What is the soil impact on Earth climate?On a smaller scale, soil can also affect climate. More so than drier, looser soils, wetter or denser soils hold heat and stabilize the environment from temperature variations.
In deserts, the temperature can rise by more than 60 °F in a single day. The largest repository for terrestrial carbon is healthy soil. In the carbon cycle, soils are essential because they absorb carbon from decaying plant tissue.
By storing carbon (carbon sequestration) and reducing greenhouse gas emissions in the atmosphere, soils can be effectively managed to mitigate climate change.
Therefore, soil composition factors does NOT alter Earth’s climate.
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List the 3 main types of heat transfer.
Answer:
conduction convection and radiation
Explanation:
I think
what would be the result in macromolecule structure and function if the world was based on a small nonpolar lipid
Changes is macro molecule structures are expected among other things.
Briefing :There would be significant changes to proteins and carbohydrates if the Earth were built on a tiny non-polar lipid rather than water. Basic alterations in an organism might include solubility, catabolism, metabolism, and absorption. Because there aren't enough dissolved media, a lot of water-soluble material would become immobile.
However, other stuff that is soluble in fat will be very mobile and well absorbed. Sessile organisms that rely on nutrients that are dissolved in water for absorption, such as trees, will lose this capability. Finally, abiotic variables like precipitation and rock weathering will be affected. There will no longer be polar cap freezing or ice melting, and there will be an influx of a non-evaporating liquid.
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What role does oxygen play in the ETC (electron transport chain) of cellular respiration?
Answer:
Explanation: In cellular respiration, oxygen is the final electron acceptor. Oxygen accepts the electrons after they have passed through the electron transport chain and ATPase, the enzyme responsible for creating high-energy ATP molecules.
Explanation:
If it was alive at one time it will always be considered a biotic factor
T OR F
Answer:
True I think
Explanation:
What role do white blood cells perform in a human body?
protect against pathogens
conducting electrical impulses
secreting enzymes
carrying oxygen
White blood cells are the ones that protect the body against pathogens. The correct option is A.
What are white blood cells?White blood cells are components of the immune system. They aid the body's defense against infection and other diseases.
There are generally the following types of white blood cells:
Granulocytes (neutrophils, eosinophils, and basophils).MonocytesLymphocytes.Thus, the correct option is A.
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PLZZZZZ ANSWER What is the advantage of genetic connections and disadvantage
Answer:
Genetic testing also helps individuals trace their family lines, not just to learn more about their own ancestry and heritage, but to identify and forge new relationships with relatives A sense of relief from uncertainty.
Reduce the risk of cancer by making certain lifestyle changes if you have a positive result.
In-depth knowledge about your cancer risk.
Information to help make informed medical and lifestyle decisions
Explanation:
What muscle is commonly injured while sleeping?
Answer:
Explanation:
If you sleep on your back, a pillow that is too thick can strain the curvature of your spine and your neck muscles. If your pillow is too thin, side-sleeping can strain the muscles on the side of your neck
Where do chylomicrons go after leaving the epithelial cells of the small intestine
Answer:
Later they are used as our energy sources and git stored in our muscles.
Explanation:
The chylomicrons are transported to the circulatory system. Once in the circulation, they can either go to the liver or be stored in fat cells that comprise adipose tissue found throughout the body.
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A television remote control is used to direct pulses of electromagnetic radiation to a receiver on a television. What does this
communication between the remote control and the television illustrate about electromagnetic radiation?
A It possesses energy inversely proportional to its frequency
B
It is a longitudinal wave.
С
It transfers energy without transferring mass,
D
It diffracts and accelerates in air
Answer:
Answers for the whole test are:
1.Infrared waves have lower frequencies than ultraviolet waves. Since frequency and energy are directly proportional, infrared waves also have less energy than ultraviolet waves.
2.The student should model a convex lens because it directs light toward the center of the lens.
3.It transfers energy without transferring mass.
4. to disinfect surgical rooms
5. X-rays would be best because they are high-energy waves that can penetrate solids.
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a transcutaneous pacemaker is most likely an intervention for which dysrhythmia? a. second-degree atrioventricular block, type i b. second-degree atrioventricular block, type ii c. wolff-parkinson-white syndrome d. wandering atrial pacemaker
A transcutaneous pacemaker is most likely an intervention for second-degree atrioventricular block, type ii dysrhythmia.
What is transcutaneous pacemaker?
A temporary method of pacing a patient's heart during a medical emergency is transcutaneous pacing (TCP), often known as external pacing. While some contemporary defibrillators can perform both tasks, transcutaneous pacing and defibrillation use pads and an electrical stimulus to the heart respectively. Defibrillation is used in more serious instances, such as ventricular fibrillation and other shockable rhythms. Electric current pulses are delivered through the patient's chest during transcutaneous pacing to stimulate the heart's contraction.
An unusually slow heart rate is the most typical transcutaneous pacing indication. By definition, bradycardia is a heart rate in an adult patient that is less than 60 beats per minute.
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How does a vaccine effect your body's antibodies?
Answer:
Read this you will find the answer :)
Explanation:
The body identifies antigens as dangerous and stimulates antibodies to attack them. ... The first time the body encounters a germ, it can take several days to make and ... disease just before or just after vaccination could develop symptoms
A graph of atmospheric carbon dioxide concentration over time is shown. Scientists are investigating the cause of the large increase in atmospheric carbon dioxide concentration since about 1800. Which of the following provides the best explanation for the increase of carbon in our atmosphere?
A. Frequent eruptions of large volcanoes.
B. Naturally occurring fluctuations of in the carbon cycle.
C. Utilization of fossil fuels by humans for industrialization.
D. An increase in the sea level due to melting of ice.
Answer:
C. Utilization of fossil fuels by humans for industrialization.
Explanation:
Frequent eruptions of large volcanoes were happening long before humans and will happen after humans too. They are not the reason why we are seeing so much CO2 in the last 200 years.
There are some naturally occurring fluctuations of carbon but not to the degree that we are seeing.
Melting of ice and sea levels rising is due to the global warming problem caused by our dependency on fossil fuels.
How many daughter cells are produced in mitosis? Are they diploids or haploids? How do you know?
How many daughter cells are produced in meiosis?
Are they diploids or haploids? How do you know?
Describe the daughter cells of mitosis in terms of genetic information
Describe the daughter cells of meiosis in terms of genetic information
I WILL GIVE BRAINIST AND I GIVE 50 POINTS
Answer:
25
Explanation:
chomisons are in a cell
Which sphere of the Earth system includes snowfields, ice caps, and frozen ground?
you are on a committee that is planning whether or not to build a tidal power plant near a diverse and healthy coastal habitat. describe at least two
The answer to the following question is-
Pros-
- Renewable.
- doesn't need fuel.
- Emission-free
- A trustworthy plant can endure 100 years.
- High performance
- reliable results
- can perhaps act as a storm surge barrier.
- Local rather than global environmental effects
Cons
- costly to construct
- extremely specific to place (only 20 sites identified with high potential)
- Requires non-continuous, grid-backup, or storage
- Barricades might prevent access to open water
- can alter the tidal level in the vicinity.
- Fish, marine mammals, and birds are affected
- upends normal tidal cycles
- reduces the salinity of tidal basins
- collects trash, waste, and pollution close to the coast
- decreases ocean kinetic energy
What is tidal power plant?Tidal power or tidal energy is converted into usable types of power, primarily electricity, using a variety of techniques.
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Scientist combine engineer skin in a laboratory to treat severe Burns and other types of skin injuries despite all engineer tissues grown from living cells the cellular process enables the so to grow in develop into tissue is
Answer:
mitosis
Explanation:
The cellular process that enables the cells to grow and develop into tissue is mitosis.
Mitosis involves the division of the vegetative cells of the body and is important for the growth and development of organisms as well as in the healing of wounds or the replacement of damaged cells/tissues.
Hence, in treating burns and other types of skin injuries, the cells of the skin are stimulated to divide rapidly by mitosis so as to replace the damaged cells due to the injury. By doing so, the injured area heals.
The 2018 fires in California have been the deadliest in history. The fires use the Oxygen in the atmosphere and the carbon in the wood and produce Carbon Dioxide and water. What type of reaction is this?
First answer gets brainliest
Answer:
I believe it would be d
Explanation:
I looked up the definition for all of them and answer d is basically the scientific word for fire plus it includes oxygen it in it so that should be your answer let me know if I'm wrong
Building a movie theater
What are the 4 benefits and costs of building a movie theater?
(In biology)
Answer:
Experience Instead Of A Possession. So many people realize that they don't want their homes or their lives filled with possessions.
Birthday Or Anniversary Event.
High-Quality Picture.
Only The Best Acting
Which molecule synthesized by plants is a major source of energy for cellular processesin both plants and animals?
Answer:
The sun is the ultimate source of life for all living beings. In photosynthesis, plants transform light energy to chemical energy. Animals are receiving nutrition from eating vegetables. The only source of energy that a cell can use is a molecule called adenosine triphosphate .
A mutation in the code for a trait may not always change the expression of that trait. What advantage does this provide cells?
Answer:
D:Some changes in the DNA sequence will not cause a change in the protein produced.
Explanation:
I did the test
Answer: D
Explanation:
I’m taking the test!
Muscular endurance is the amount of force that can be exerted by a single contraction of the muscle. True or false?.
False: The amount of force that can be exerted by a single muscle contraction determines muscular endurance.
What is the muscular endurance?The capacity of a muscle or group of muscles to sustain repeated contractions against a force over an extended period of time is known as muscular endurance. The more repetitions you could perform, the stronger your muscle endurance was.
Why is muscle endurance important?There are numerous reasons why muscular strength and endurance are crucial: increase the endurance with which you can carry out tasks like opening doors, lifting boxes, or chopping wood. lessen the chance of damage. assist you in maintaining a healthy weight.
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The shape of a blackbody curve depends on what single property of the blackbody?.
The shape of a blackbody curve depends on the single property of the temperature of the blackbody. It is the only single property of the blackbody that affects the shape of a blackbody curve.
Temperature completely determines the shape of a blackbody curve as it shows a wide variety of results by their amount in the increased or decreased state.
Blackbody Curve is the curve that represents the intensity of spread of the radiation that is emitted by any type of object. The curve drawn sometimes refers to a mathematical type of idealization which is known as a blackbody as it is an object that is capable of absorbing all kinds of radiation falling upon it.
Each curve will show an intensity of radiation that exists over a wide range of wavelengths as it is emitted at a particular temperature by the blackbody.
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all you need is in the photo
Answer:
An example of abiotic factor include temperature, light and water. A seasonal
variation temp and precipitation will have a great impact on the population in the ecosystem
Please Help Make Sure you explain your answer i will be marking brainliest to the first person who is correct:)
SCIENCE....,,,,
Answer:
D
Explanation:
Lower pressure= higher up in the water
anything that goes up to the twilight zone or ocean surface loses pressure. Deep ocean to trench is the only one that descends.
help if you can please match the answers with the questions
The description of groups are marked as follows:
Alkali metal, Group 1 = very reactive and soft metals.
Halogens, group 17 = very reactive nonmetals.
Noble Gases, Group 18 = very unreactive nonmetals.
Alkaline earth metals , group 2 = Not as soft as alkali metals. Reactive metals, but not quite as reactive as alkali metals.
What are groups in p eriodic table?The groups of the periodic table is the column that is numbered from 1 to 18 from left to right of the periodic table.
Each group has a specific name attached to it some of which includes the following:
Alkali metal, Group 1 = very reactive and soft metalsHalogens, group 17 = very reactive nonmetals.Noble Gases, Group 18 = very unreactive nonmetals.Alkaline earth metals , group 2 = Not as soft as alkali metals. Reactive metals, but not quite as reactive as alkali metals.Learn more about periodic table here:
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Identify the three reactants for photosynthesis (HELP)
Answer:
the three reactants are carbon dioxide, water and sunlight.
there's not rly any explanation needed.
HELP!!!
what is a component of cell theories
○Cells come from bacteria
○cells come from cells
○cells come from nonliving matter
○cells come from non-cells
Answer:
cells come from cells
Explanation:
The component of cell theories is that all cells come from already existing cells by division.
The component of the cell is that it is the primary element of life and that all the living things are made of one or more cells.
New cells come from the old ones by division and it means that no living thing can come into being through the non-living thing.