Which of the following is an example of conservation by sustainable land use?
A. Reducing use of chemical fertilizers and pesticides.
B. Removing a dam and allowing water to flow naturally.
C. Using plants to remove toxins from the ground in an environment.
OD. Creating a new ecosystem equal in size to the one that was damaged.
Using plants to remove toxins from the ground in an environment is an example of conservation by sustainable land use.
In order to meet human needs both now and in the future, sustainable land use provides a fair and balanced distribution of land, water, plants, biodiversity, and other environmental resources among the numerous competing claims.
In order to protect, conserve, and use resources (soil, water, and biodiversity) sustainably, as well as to restore degraded natural resources and their ecosystem functions, sustainable land management (SLM) entails measures and practices that are tailored to biophysical and socioeconomic conditions.
SLM practices include:
Control soil erosion, boost soil fertility, manage soil organic matter for soil carbon sequestration, avoid land conversion and safeguard vulnerable areas; prevent land degradation; and recover degraded soils.
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What is gravity’s role in plate tectonics?
Answer:
Gravity causes them to slide downwards
gravity causes
1. everything to be pulled to the center
2. earth's tectonic plates to move
3. one plate to go under another plate
4. the plate that went under to go into the mantle
realonomicsnet
msnucleusorg
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According to the fluid-mosaic model of a cell membrane, the main component of a membrane is:______
Answer:
phospholipids
Explanation:
phospholipids are a type of lipid that make up the cell membrane they are amphipathic meaning they have both hydrophobic parts which do not readily mix with water and hydrophilic parts which mix with water
Drag each label to the correct location on the diagram.
Identify the structures of skeletal muscle.
fascicle
muscle
myofilament
muscle fiber
myofibril
The skeletal muscle, responsible for voluntary contraction is composed of 1) Myofilaments 2) Myofibrilles 3) Muscle fibers 4) Muscle (from the left to the right in the image)
What is the composition of the skeletal muscle?
The elements composing the skeletal muscle are,
Myofilaments ⇒ Actine and miosineSarcomere ⇒ It is the functional unit with the contractile apparatus. Composed of the Z band, A and I bands, and H zone.Myofibrilles ⇒ They have the Functional unitsMuscle fibers ⇒ Surrounded by endomysiumFascicle ⇒ Group of fibers surrounded by perimysium.Muscle ⇒ Group of fascicles surrounded by epimysium.The sarcomere is the contractile unit in a skeletal muscle. The thick myosin myofilaments are located in the central region of the sarcomere, which corresponds to the A band.
Thin filaments united to the Z lines, extends to the interior of the A band until they reach the border of the H band.
The I band is formed solely of thin actin filaments, belonging to two sarcomeres adjacent to a Z line.
When the muscle contracts, the muscular fiber gets shorter and thicker due to the reduction in length of the sarcomere.
The H line and the I band get shorter. The Z lines get closer to the A band, meaning that they get closer to each other. The A band keeps constant in length.This change is produced by movement mechanisms that involve a change in the relative position of actin and myosin filaments.For a better understanding about muscle contraction, look at the attached files.
From the left to the right,
1) Myofilaments
2) Myofibrilles
3) Muscle fibers
4) Muscle
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Transpiration is
A. the process of water rolling down
hill.
B. when plants evaporate water into
the atmosphere from their leaves.
C. when oceans move water to
different climates.
Answer:
Should be B
Explanation:
prove me wrong
Answer:
b
Explanation:
for sure..
..........
What is Total Lung Capacity (TLC)?
Answer:
Lung capacity or total lung capacity (TLC) is the volume of air in the lungs upon the maximum effort of inspiration.
question is up there
(question b)
Answer:
group and 70/you have received your email
What is the function of estrogen in the menstrual cycle?
A. Causes ovulation.
B. Maintains the uterus lining.
OC. Causes the uterus to thicken.
D. Causes the egg to develop.
Reset Selection
Estrogen play two main functions such as prepare maturation of an egg to release during ovulation and thicken the lining of uterus. Thus all options are correct.
What is Estrogen Hormone?
It is a sex hormone released in the adrenal glands, ovaries and fatty tissue,
It is mainly involve in development of breasts in puberty and the growth of uterus lining during the menstrual cycle.
Regulation of menstrual cycle, growth of pubic and underarm hair, bone strength can be regulated.
There are three types of estrogen released from our body such as Estradiol (E2), Estriol (E3), Estrone (E1).
Estradiol is observed in women of childbearing age, estriol is produced during pregnancy where as estrone is released after menopause.
Thus all options are correct.
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Which of the following are NOT criteria for the definition of a species? A. Produce fertile offspring B. Can Interbreed C. Share physiological characteristics D. Has the same DNA sequence
Answer:
C) Physical characteristics.
5. Which major consumer of oil is most vulnerable to disruption in the event of another energy crisis: electric power generation, motor vehicles, heating and air conditioning, or industry? Why?
6. Which of the following produces the most CO2 per unit of energy produced: oil, natural gas, or coal?
7. India, China, and the United States all have large coal reserves. Do you think any or all of them should build more coal-fired power plants over the next 20 years? If so, what technologies will help them minimize environmental impacts?
10 Examine the bar graph, which shows the six countries with the greatest natural gas deposits. Is most of the world’s natural gas located in North and South America, or in Europe and the Persian Gulf countries?
The major consumer of oil which is most vulnerable to disruption in the event of another energy crisis is industry.
The most of the world’s natural gas is located in Europe.
Coal produces the most CO2 per unit of energy produced
The bar graph which shows the six countries with the greatest natural gas deposits is attached.
Absolutely yes! all of these countries should build more coal-fired power plants over the next 20 years. This is simply because coal-fired power plants provide affordable, reliable and constant power that is available on demand to meet energy consumption needs.
The technologies which will help them minimize environmental impacts in coal-fired power plants are
Power generation.Concentrated solar power.Nuclear power plant.Virtual power plant.BiomassWhat is energy?Energy is the capacity of doing work.
Below are some forms of energy:
Nuclear energyPotential energyKinetic energyMechanical energySo therefore, the major consumer of oil which is most vulnerable to disruption in the event of another energy crisis is industry.
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14 Answer:
_____ is the most abundant element in the Earth's atmosphere.
15 Answer:
The _____ electrons are those found in the outermost energy level of
an atom.
16 Answer:
In the modern periodic table, elements are arranged in order of
increasing atomic masses.
a. true
b. false
17 Answer:
Elements can be classified as metals, nonmetals, or metalloids.
a. true
b. false
18 Answer:
Nonmetals are good conductors of heat and electricity.
a. true
b. false
19 Answer:
Luster is a chemical property of metals.
a. true
b. false
20 Answer:
Halogens include fluorine, chlorine, bromine, iodine, and astatine.
a. true
b. false
Oxygen is the most abundant element in the Earth's atmosphere.
The valence electrons are those found in the outermost energy level of an atom.
In the modern periodic table, elements are arranged in order of increasing atomic numbers. True
Elements can be classified as metals, nonmetals or metalloids. True
Nonmetals are good conductors of heat and electricity. False
Luster is a chemical property of metals. True
Halogens include fluorine, chlorine, bromine, iodine, and astatine. True
What is an element?An element is a substance which cannot be split into simpler units by a ordinary chemical process
So therefore, Oxygen is the most abundant element in the Earth's atmosphere.
The valence electrons are those found in the outermost energy level of an atom.In the modern periodic table, elements are arranged in order of their increasing atomic numbers TrueLearn more about elements:
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What features do
cardiac muscle cells
have when looking
under a microscope?
A. long and thin with striations and many nuclei
B. small, striated, and only 1-2 nuclei per cell
C. smooth, 1 nuclei, and connected by gap junctions
Explanation:
B. small, striated, and only 1-2 nuclei per cell
Answer:
B. small, striated, and only 1-2 nuclei per cell
Que signifie ADN et comment on le prouve?
Answer:
Qu'est-ce que l'ADN ?L'ADN (acide désoxyribonucléique) est un type d'acide nucléique qui se distingue par le stockage de l'information génétique de la grande majorité des êtres vivants. Cette molécule est formée de nucléotides et a généralement la forme d'une double hélice.
Il est nécessaire de prélever des échantillons de certains fluides corporels qui peuvent être du sang, de la salive, des ongles, des cheveux ou du sperme. À l'aide de techniques de laboratoire sophistiquées, l'ADN des échantillons est isolé, puis une cartographie est effectuée, ce qui est fait par des équipements appelés "Séquenceurs d'ADN".
Pour le prouver, normalement le rapport d'un examen ADN apporte quels gènes et chromosomes ont été étudiés et l'analyse du généticien à leur sujet. Les résultats sont présentés dans des rapports simples et clairs. Dans les examens de paternité, le résultat est toujours comparatif.
J'espère t'avoir aidé, bonnes études !
why is abortion important?
Expiratory reserve volume (ERV) You ask your lab partner to inspire a normal tidal inspiration, and breathe out a normal tidal expiration, then exhale as forcibly as possible into the spirometer mouthpiece. As before, several measurements were taken. a. Measurement 1: 800 b. Measurement 2: 850 c. Measurement 3: 780 2 10 points
Calculate the average expiratory reserve volume (ERV). Round to the nearest whole number. Your lab partners average expiratory reserve volume (ERV) is
The average expiratory reserve volume or ERV is 810.
What is expiratory reserve volume?Expiratory reserve volume or ERV is the amount of air that is exhaled forcibly.This can be measured using a spirometer and is used to detect restrictive lung diseases.It is the maximum amount of air that can be exhaled after normal tidal volume is exhaled.Respiratory volume is the volume of air which is either inhaled, exhaled or stored in your lungs.The doctors estimate the reserve volume with the help of spirometer to determine some lung diseases.Once diagnosed with a lung disease, spirometry is used to monitor it.Here, 3 readings of ERV are taken, calculate the sum of the these and divide by 3 to calculate the average ERV.ERV= (800+ 850+ 780)/ 3= 810Learn about tidal volume here:
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Which goals are more effective since they depend on factors that you can control?
Answer:
Explanation:
Endurance. Effective goals are demanding but achievable, is a description of what goalsetting principale. Set challenging and realistic goals. To restore energy levelss within the muscles and recover from fatique is a function of what principle. Rest.
Predict the effect of a substance that inhibits sodium channels from opening. How might this substance affect the way the nervous system functions?
Description:
The movement of sodium and potassium ions is an important part of how a neuron generates an action potential. Their movement is controlled by three transport proteins.
The effect of substance that inhibits sodium channels from opening would lead to reduction of cell excitability.
What are sodium channels?The sodium channels are gated channels found in the cell membrane that allows the controlled passage of sodium ions to and from the cell of the body.
Sodium ions are one of the most important electrolyte of the body which helps in the maintenance of body fluid balance.
The opening and closing of the sodium channels helps in their regulation.
The substances that inhibit these sodium channels prevents the passage of sodium ion into the cell leading to the following effects:
Slows the rate and amplitude of initial rapid depolarization, Reduction of cell excitability, andReduction of conduction velocity.This substance that inhibits sodium channels affects the nervous system functions because they block nerve conduction and thereby block sensation in the area innervated by affected nerve fibers.
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Directions
Imagine you are writing a paper about why critical thinking skills are important in the workplace. Review the lectures on Crediting Sources, APA, and Avoiding Plagiarism.
Then read this article about this topic (the article is also available in the course in case the object link below does not work):
After reviewing article, select a sentence that would be strong support for a paper on critical thinking in the workplace. In a paragraph submitted as a Word document, include the following:
• A sentence to introduce the main idea of the article.
• A signal phrase to let the reader know the following information is from a source
• The quote from the article, including quotation marks and in-text citation.
• A sentence that discusses the quote you chose and connects it with your imaginary paper.
Please review the rubric below for grading criteria.
Reviewing of articles summarizes the current state of understanding on a topic within a certain discipline.
What is an article review?This is a type of professional paper writing which demands a high level of in-depth analysis and a well-structured presentation of arguments and a critical evaluation of literature in a particular field through summary, classification, analysis, and comparison.
Introducing the main idea of an article:
The first sentence should explain the subject being discussed in the passage.
A signal phrase is a short introductory phrase that indicates that a quote or paraphrase is coming. To introduce a signal phrase, you provide an effective transition between your own ideas and the evidence used to explore your ideas.
To include a quote, use the author's last name and the page number from which the quotation or paraphrase is taken.
To include a sentence which discusses the quote chosen, you:
Use a full sentence followed by a colon to introduce a quotation.Begin a sentence with your own words, then complete it with quoted words.Use an introductory phrase naming the source, followed by a comma to quote a critic or researcher.Hence, a review article is generally considered a secondary source since it may analyze and discuss the method and conclusions in previously published studies.
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What are three characteristics that make life possible on Earth?
Different characteristics such as Earth's atmosphere, distance from the Sun, and presence of water make life on Earth possible.
Is there a groups of rules for organisms to live?The idea that there is a group of rules to support life on Earth is controversial but it is clear that life as we know required different features to form.
Some of the most important features that support the emergence of biologically closed systems on Earth include the presence of water in a liquid state, an appropriate atmosphere and a suitable amount of solar radiation.
In conclusion, different characteristics such as Earth's atmosphere, distance from the Sun, and presence of water make life on Earth possible.
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Which of the following organisms reproduces asexually?
OA. Human
OB. Bacteria
C. Spider
D. Lobster
Answer:
OB. Bacteria
Explanation:
Bacteria reproduce through a process known as Binary Fission, which is an asexual reproduction by a separation of the bacteria into two new bodies.
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Which of the following describes the correct order of energy conversions necessary to form electricity from a hydroelectric dam?
Flowing water → Electricity
Flowing water → Heat → Electricity
Flowing water → Kinetic → Electricity
Flowing water→ Heat → Kinetic → Electricity
Flowing water kinetic energy electricity - describes the correct order of energy conversions necessary to form electricity from a hydroelectric dam
One of the main parts of a hydroelectric facility is a hydroelectric dam that produces electricity. A hydroelectric dam is a substantial, artificial structure created to hold back a body of water. In addition to being built to generate hydroelectric electricity, hydroelectric dams are also built to manage flooding and river flow.
The water intake is located quite close to the base of the hydroelectric dam wall. It drops through the penstock inside the hydroelectric dam because to gravity. A turbine propellor, which is rotated by the flowing water, is located at the end of the penstock. The turbine's shaft ascends into the generator, which generates the energy.
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Option C: Flowing water → Kinetic → Electricity
what process is similar in function to genetic engineering but diffent in the mechanism it uses?
A similar process in function to genetic engineering but different in the mechanism is breeding for specific traits.
What is selective breeding?Selective breeding refers to conventional techniques used by humans to obtain plants having desired phenotypic features.
Selective breeding is based on the process of obtaining genetic crosses and the selection of adaptable phenotypes for the traits we need to improve.
In conclusion, a similar process in function to genetic engineering but different in the mechanism is breeding for specific traits.
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Name one salivary gland in humans
Salivary gland in humans ;
1) Sublingual glands
2) Submandibular glands
3) Parotid glands
Answer:
One salivary gland in humans is Parotid glands.
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Why is photosynthesis considered a light-dependent reaction?
Answer: Light reactions of photosynthesis are light dependent reactions. They are light dependent because for the process to start, a light ray should impinge on the chlorophyll and only then the reactions of photosynthesis begin.
Explanation:
If all of the carbon dioxide were
removed from the atmosphere,
what effect would this have on
plants?
A. They would no longer be able to
photosynthesize because carbon dioxide is a
reactant in the process.
B. They would adapt and change the
photosynthesis reaction to not need carbon
dioxide.
C. This would not affect the plants.
Answer: A.
Explanation:
Im learning about this too!
Without being in the presence of
light a producer cannot make
what?
A. sugars
C. H2O
B. CO2
D. oxygen
A producer cannot make sugars in the absence of light, the correct option is A.
What are producers?Producers, also known as autotrophs, are lifeforms that produce their own food.
They obtain energy from chemicals or the sun and transform it into usable energy in the form of sugar or food using water.
Plants and algae can produce their own food by harnessing solar energy. These organisms are referred to as producers because they generate their own food.
Thus, the correct option is A.
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Place the respiratory structures below in the order that air would pass through them as it moves from the outside to the inside of the body.
The respiratory structures in order that air moves from outside to inside include primary bronchus--> secondary bronchus--> Tertiary bronchus--> terminal bronchioles--> respiratory bronchioles--> alveolar duct--> alveolar sacs--> alveoli.
What is respiratory system?The respiratory system is one of the major systems of the body that helps in the oxygenation of the blood which is used by the body cells for oxidation.
Respiration occurs as we breath in air or oxygen and breath out carbon dioxide as used air from the body.
The correct flow of this air from outside to the inside of the body through the following order:
The primary bronchus: This is the first division of from the trachea at the carina forming two bronchi which leads to the left and right lungs.
The secondary bronchus: This divides form the primary bronchus.
The tertiary bronchus: This divides from the secondary bronchus to to supply each segment of the lungs.
The terminal bronchioles: This divides from the tertiary bronchus
The respiratory bronchioles: This divides for the terminal bronchioles.
The alveolar duct, alveolar sacs and alveoli is the main area that oxygen is exchanged with the blood.
primary bronchus--> secondary bronchus--> Tertiary bronchus--> terminal bronchioles--> respiratory bronchioles--> alveolar duct--> alveolar sacs--> alveoli.
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look at the picture
where is food stored in non endosperm seed?
Explanation:
A lithosphere is the rigid, outermost rocky shell of a terrestrial planet or natural satellite. On Earth, it is composed of the crust and the portion of the upper mantle that behaves elastically on time scales of up to thousands of years or more
Describe and explain how blood flows from the foot to the lungs.
Answer:
lungs:
The blood first enters the right atrium.
The blood then flows through the tricuspid valve into the right ventricle.
When the heart beats, the ventricle pushes blood through the pulmonic valve into the pulmonary artery.
The pulmonary artery carries blood to the lungs where it “picks up” oxygen.
It then leaves the lungs to return to the heart through the pulmonary vein.
The blood enters the left atrium.
It drops through the mitral valve into the left ventricle.
The left ventricle then pumps blood through the aortic valve and into the aorta. The aorta is the artery that feeds the rest of the body through a system of blood vessels.
Blood returns to the heart from the body via two large blood vessels called the superior vena cava and the inferior vena cava. This blood carries little oxygen, as it is returning from the body where oxygen was used.
The vena cavas pump blood into the right atrium and the cycle begins all over again.