We need to protect our oceans from pollution because it harms marine ecosystems, affects human health and livelihood, and contributes to climate change.
Climate change exacerbates other ocean problems, such as coral bleaching, which affects the rich biodiversity within coral reefs, important nutrients for marine life, and the provision of protein for millions of people. Furthermore, coral reefs serve as natural barriers against disasters like tsunamis, and they greatly contribute to tourism.
Ocean water pollution illustrates that despite their vastness, oceans are highly susceptible to pollution. Trash, including plastics, not only contaminates coasts but can also create hazards for marine animals, leading to entanglement or ingestion of inedible materials. Oil spills, like the incident in the Gulf of Mexico in 2010, can devastate marine species and destroy coastal habitats.
Human activities, driven by our standard of living and neglect of coastal pollution controls, also play a significant role. Runoff from land carries pollution to the sea, compounded by direct waste disposal into coastal waters in certain regions. Plastic pollution is a challenge that could be mitigated by banning single-use plastics and improving recycling programs
the duck-billed platypus is quite an unusual mammal. why is it unusual compared to other mammals? why is it classified as a mammal?
This animal is considered a mammal because it is warm blooded.
Whats weird is that it lays eggs.
Males also have poison spikes on the ankles of their hind legs.
Hope this helps!
The duck-billed platypus’s name come from its snout, which looks a lot like a duck’s bill. It has another birdlike characteristic; it lays eggs, which is quite unusual for mammals. In fact, there are only five known mammals that lay eggs. The other four are four species of echidna, also called the spiny anteater. The duck-billed platypus is classified as a mammal because it has body hair, it’s warm-blooded, and the females produce milk.
What cellular interactions are the result of their training, allowing for improved athletic performance?
A) decreased muscle mass - increased proteins - decreased fat - glucose used for energy source
B) increased muscle mass - increased mitochondria - increased cellular respiration - increased ATP
C) decreased mass - less energy needed for movement - less carbohydrates required - more available ATP
D) decreased respiration rate - increased oxygen consumption - increased cellular respiration - increased energy
The correct answer for this question is C) decreased mass - less energy needed for movement - less carbohydrates required - more available ATP
Solution; Increased muscle mass in athletes will increase the number of mitochondria in body. Mitochondria provides energy to cells of our body so more mitochondria will results in more energy and due to large amount of energy there will be increased cellular respiration and less fatigue, thus athletic performance will be improved.
Answer:
B
Explanation:
USATESTPREP
During the process of protein synthesis, each tRNA carries one
Answer:
amino acid
Explanation:
one amino acid is carried by each transfer RNA (tRNA) during translation of messenger RNA to protein.
carbohydrates are complex polymers that are broken down by the body and utilized for energy. any carbs not immediately used, are stored in longs chains called glycogen. this glycogen is stored in the liver and saved for the body needs sources of energy. based on this information, you can conclude that
I can conclude that the carbohydrates can not be stored in body in form of sugars like glucose, fructose, lactose etc.
Explanation:For storage they have to convert in other forms like glycogen in muscles or liver.Once these glycogen stores are filled up, any extra gets stored as fat. Glycogen is the source of energy most often used for exercise.The ingredient label on a container of shortening indicates partially hydrogenated vegetableoil." This means that during processing the number of carbon-carbon double bonds in the oil was reduced. What is the result of decreasing the number of double bonds?a. The oil now has a lower melting point.b. There are more "kinks" in the fatty acid chains, reducing the membrane density.c. The fatty acid is modified from a diglyceride into a triglyceride.d. The oil now contains a higher percentage of carbohydrate.e. The oil is now more likely to be solid at room temperature.
E. The oil is now more likely to be solid at room temperature.
Vegetable oil is made up of unsaturated fatty acids (more of double bonds) which makes it liquid at room temperature and by partial hydrogenation of vegetable oil we are reducing the number of double bonds (carbon-carbon bond reduced) which makes the oil more likely to be solid at room temperature.
Answer: e. The oil is now more likely to be solid at room temperature.
In partial hydrogenation process, a hydrogen gas is passed through oils and their double bonds are converted into single bonds in between the carbon atoms. The purpose of hydrogenation process is to attain properties of saturated oil into unsaturated oil, such as solidity at room temperature.
What is the role of oxygen gas (O2) in glycolysis? ANSWER CHOICES: A) oxygen is a reactant B) oxygen is a product C) oxygen is an intermediate D) oxygen has no direct role
I really need someone to answer these questions because this is a major grade and I don't understand cells (sorry it's a bit blurry lol)
First of all, that cell is Mitochondria.
The job of this organelle is to make ribosomes, and the structure affects the function by the parts of a mitochondron; it has an inner and outer membrane, and by the outer membrane being more permeable than the inner (meaning that it allows liquids to pass through it), it helps regulate what enters the organelle.
The mitochondron can be found in both a plant and animal cell.
which is the least number of seismograph stations needed to locate the epicenter of a earthquake
three is your Answer :)
At least three seismograph stations are needed to locate the epicenter of a earthquake.
Further Explanation:
An earthquake occurs when two region of the earth slip past each other. Fault plane is the area where the slip occurs. Hypocenter is the region below the earth’s surface where earthquake starts while the epicenter is the region above it.
The earth consists of four major layer:
1. Inner core
2. Outer core
3. Mantle
4. Crust
Seismographs is an instrument used to record the earthquake. The recording done by this instrument is called as the seismograms.
The seismograph comprises of:
1. A base: is fixed tightly in the ground
2. Heavy weight: hangs freely
When the earthquake occurs, the ground shakes and in turn the seismograph also shakes while the hanging weight does not shakes. During the earthquake, the difference in the location between the shaking piece and the motionless piece is recorded. Magnitude of the earthquake is recorded as one for each earthquake. The magnitude of earthquake is measured by the Richter scale but is more commonly measured through moment magnitude scale.
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Answer Detail:
Grade: College biology
Subject: Biology
Chapter: Natural calamity
Keywords:
Seismograph stations, earthquake, fault plane, hypocenter, epicenter, inner core, outer core, mantle, crust, seismographs, instrument, seismograms, magnitude.
Cold air reaches the United States due to the _______, and the jet stream determines how far south it goes
polar easterlies, hope this helps!
Answer:
polar easterlies
Explanation:
The bacteria in our large intestine break down food that we consider waste. During this process, vitamins are released that we absorb into our bloodstream. This is an example of which symbiotic relationship?
I believe the correct answer is commensalism.
This is a mutual symbiotic relationship were both the partners benefit from the process.In this case, the bacteria break down the food that is considered waste with facilitates its survival and on the other hand the human body obtains vitamins that are released in the bloodstream for absorption.
What are the characteristics of carbon bonds? Check all that apply. insoluble in water, electrolytes, covalent bonding, high melting point ,slow reaction rate, no triple bonds, high activation energies to begin reactions
Answer: The correct answer is insoluble in water, covalent bonding, slow reaction rate, and high activation energies to begin reactions.
1,3,5,7
Explanation: Got it right on EDGE.
The characteristics of carbon bonds primarily involve covalent bonding with up to four carbon atoms, can include triple bonds, generally have high activation energies, and high melting points in covalent network solids like diamond.
Explanation:The characteristics of carbon bonds involve covalent bonding where carbon atoms bond reasonably strongly with other carbon atoms and atoms of other elements. Carbon atoms can form up to four covalent bonds. Specifically, some forms of carbon, like diamond, do not have high solubility in water, do not conduct electricity, and have extremely high melting points, as all the atoms are connected by covalent bonds forming a covalent network solid. Covalent bonds generally have high activation energies for reactions, but the reaction rates can vary widely and are not necessarily slow. Carbon compounds can also form triple bonds, like those found in acetylene (C2H2).
Other properties of carbon compounds include the fact that they are generally non-electrolytes, as they do not dissociate in water to form ions, which means their aqueous solutions typically do not conduct electricity. However, an exception to this is graphite, which is an allotrope of carbon that exhibits both covalent and molecular solid properties, and can conduct electricity along the planes of carbon atoms due to delocalized bonding.
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True or false an objects mass is less on the moon than it is on earth
HELP!!! URGENT!! 40 POINTS
The figure shows a classic experiment that demonstrates the principle of osmosis. The left side of the U-tube is filled half-way with 10% red sugar water. Into the tube on the right, distilled water is poured until it is even with the red sugar water. A semi-permeable membrane is placed in the brown area. Predict what will happen in the U-tube after several hours.
A) The membrane in the middle will melt away and both sides will mix.
B) Both sides will become 5% red sugar water, and will be at equal marks on the U-tube given enough time.
C) The left side of the tube will remain red, but rise in volume, as the right side of the tube falls in volume. The distilled water will dilute the sugar water.
D) The left side will remain red, but it will fall. The right side will remain clear, but it will rise, as water moves from the 10% sugar water to the distilled water.
The left side of the tube will remain red, but rise in volume, as the right side of the tube falls in volume. The distilled water will dilute the sugar water.
Out of the provided options, the left side of the tube will remain red. However, there would be an increase in the volume as the right side of the tube drops in volume. The distilled water will also dilute the sugar water.
Further Explanation:
Osmosis refers to the spontaneous movement of the solvent particles via a semi-permeable membrane from a lower to the higher region of concentration, in the direction which tends to maintain equilibrium onto both sides. This process is essential in the biological systems as the membranes are semi-permeable.
In the given experiment, there are two tubes wherein one of them is filled with red sugar water while the other one is filled with distilled water and is segregated with a semi-permeable membrane. Osmosis will always focus on maintaining the equilibrium on both sides.
During this experiment, the solvent molecules will flow from lower to higher concentration region, which means that the molecules will move from the distilled water towards the sugar water. This will result in an increase in the volume of the left tube whereas there will a drop in the volume in the right tube. The distilled water will dilute the sugar water as the molecules move out.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Membrane Transport
Keywords:
Osmosis, U-tube experiment, molecules, lower concentration, higher concentration, sugar water, distilled water, semi-permeable membrane.
Why is the question of whether the injuries came from a stone or steel weapon important? How could scientists distinguish between the different types of weapons?
It is important in determining whether injuries/death was an accident or purposeful, and if purposeful, who, how and why did someone do it. They determine the weapon through the ligature marks left, the shape, force and impact of the injury, the location of the injury, and by analysing any fragments and trace evidence left on the wound
What biodiversity restoration method can biologists follow to increase the density of trees and the canopy thickness in an area to recreate suitable habitats for wildlife and fight climate change? A. biological augmentation B. bioremediation C. canopy fogging D. hot spot protection E. reforestation
Reforestation is the correct answer.
Answer: E. reforestation
Biodiversity restoration is a practice which allows the preservation of an ecosystem in a region. It involves the practice of renewing, restoring of the habitat of species which is degraded, damaged or destroyed either by the human intervention or by a natural hazard.
According to the given situation, the canopy thickness of the area can be recreated by reforestation. Reforestation is a process which involves the natural or intentional re -plantation of land which was previously occupied by the forest or some amount of vegetation. Although, it will take some years but can provide a habitat to wildlife and will prevent drastic climatic changes.
Freshwater marshes occur beside rivers and oceans ? True or False
Freshwater marshes occur beside rivers and oceans.
Yes, this statement is true .
Freshwater marshes conatins fresh water . They are generally found near the river mouths. They are found along the fringes of lakes and rivers where the water table, the upper surface of underground water, is very high. Marshes are useful for the damage cause by the flood storing the water.
How does soil convert the organic matter back to CO2?
A. through corrosion
B. through photosynthesis
C. through litterfall
D. by decomposing it
E. by human activities only
Answer:
D. by decomposing it
Explanation:
The organic matter that goes into the soil is converted back into the environment as CO2 thanks to the help of different microorganisms like bacteria, or other organisms like fungus, worms and insects that feed on the organic matter and as residual for that feeding they excrete CO2 and other nutrients for the soil.
An organism adapts to both biotic and abiotic factors in its environment. Decide if each adaptation is in response to a biotic or abiotic factor.
A rabbit living in
a desert has long ears
to disperse heat.
A moth immediately
dives to the ground
when it hears a bat.
A lizard stays warm
by sunning itself
on a rock.
A cactus has spines
instead of leaves
to help conserve water.
A petunia is
bright red to
attract hummingbirds.
A stick-bug blends in
with trees to hide
from predators.
Answer:
The correct answer is
1. A rabbit living in a desert has long ears to disperse heat- abiotic factor.
2. A moth immediately dives to the ground when it hears a bat- biotic factor.
3. A lizard stays warm by sunning itself on a rock- abiotic factor.
4. A cactus has spines instead of leaves to help conserve water- abiotic factors.
5. A petunia is bright red to attract hummingbirds- biotic factor.
6. A stick-bug blends in with trees to hide from predators- biotic factor.
Explanation:-
The environment includes both abiotic and biotic factors which can affect the ecosystem. Living elements like plants and animals which affect ecosystem are known as biotic factors while the non-living elements which include air, water, temperature are called abiotic factors.
In the given question the options affected by the biotic factors due to bat, due to hummingbirds and due to predators.
Options affected by the abiotic factors due to heat and due to water.
The adaptations of organisms can be categorized based on whether they are responses to biotic factors or abiotic factors. Adaptations 1 and 3 are in response to abiotic factors, while adaptations 2, 4, 5, and 6 are in response to biotic factors.
Here are the classifications for each given adaptation:
1. A rabbit living in a desert has long ears to disperse heat.
- This is an adaptation to an abiotic factor. The long ears help the rabbit to regulate its body temperature in the hot desert environment.
2. A moth immediately dives to the ground when it hears a bat.
- This is an adaptation to a biotic factor. The moth's behavior is a direct response to the presence of a predator, which is a living organism.
3. A lizard stays warm by sunning itself on a rock.
- This is an adaptation to an abiotic factor. The lizard is using the sun's heat, a non-living component of the environment, to regulate its body temperature.
4. A cactus has spines instead of leaves to help conserve water.
- This is an adaptation to an abiotic factor. The spines reduce water loss through transpiration, which is crucial in the arid environment where water is scarce.
5. A petunia is bright red to attract hummingbirds.
- This is an adaptation to a biotic factor. The coloration of the petunia is a strategy to attract pollinators, which are living organisms.
6. A stick-bug blends in with trees to hide from predators.
- This is an adaptation to a biotic factor. The stick-bug's camouflage is an evolutionary response to the presence of predators, which are living organisms.
Which of the following balances is affected by the local force of gravity?
A.
Beam balance
B.
Analytical balance
C.
Spring balance
Answer:
It is the C) Spring Balance
Explanation:
Spring Balance is affected by the local force of gravity, since it is the one that has the most movement, therefore it would be difficult to spring.
Covalent bonds are formed when valence electrons are _____ between _____.
A. shared; ions
B. shared; atoms
C. transferred; ions
D. transferred; atoms
Option B is correct.
B. shared; atoms
Explanation:A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.
Answer:
B. shared; atoms
Explanation:
Covalent bond is formed by sharing of electrons between two atoms. In this way full outer shell is achieved by both the atoms. Since there is no gain or loss of electrons, no ions are formed in the process.
It is usually formed between the atoms of similar electronegativity. It can be of many types like sigma bond, pi bond etc. If a pair of electrons is shared, it's a single bond. If two pairs are shared, it's a double bond and if three pairs are shared, it's a triple bond.
Cleo has a vegetable garden and wants to increase the amount of nitrogen in the soil. How can she most likely do this?
Cleo can add several soybean plants to her garden
Nitrogen is very essential for plants for its metabolism, formation of chlorophyll, etc. It can be increased in soil by adding manure, by planting nitrogen fixing plants, etc.
Why is nitrogen essential for plants?Nitrogen is essential component for plants as it aids in formation of chlorophyll, helps plants to process their food, important for growth of plants, etc.
The amount of nitrogen can be increased by:
Mixing composted manure in the soil.Plant green manure plants.Planting nitrogen fixing plants.Manure tea remains.Thus, by following above mentioned ways, Cleo can increase the amount of nitrogen in soil.
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What process is shown?
A. endocytosis
B. phagocytosis
C. pinocytosis
D. exocytosis
The process is exocytosis.
Answer: Exocytosis
Explanation:
Exocytosis can be defined as the process by which the plant and animal cell performs the process of endocytosis. The substances that is produces inside the cell is transported outside the cell.
This is a type of active transport and bulk transport in which the materials like protein and neurotransmitter is forced out of the cell.
This is necessary for the cell to transport large molecules out of the cell as they cannot pass through the hydrophobic part of the plasma membrane.
What sentence best supports the statement that hormones are involved in the regulation of homeostasis? A. The hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. B. The hormone cortisol suppresses the immune system and is produced when the body is under stress. C. The hormone oxytocin promotes labor contractions of the uterus during childbirth. D. The hormone melatonin induces sleep and its production is slowed by exposure to light.
The correct answer is option A. The hormone erythropoeitin increases the production of red blood cells when oxygen levels are low.
Homeostasis means maintaining a steady state of a particular variable within the body of a living being. That variable may be anything like body temperature, gases like oxygen or carbon dioxide or a body fluid. The body of an organism has various mechanisms to maintain homeostasis. If a particular variable like oxygen in the body of an organism is less than the normal amount then the body produces erythropoietin (EPO) hormone in the kidney which in turn increases the production of red blood cells. The red blood cells have hemoglobin which is responsible for transporting oxygen to the various tissues of the body. So, increased level of RBC implies increased oxygen supply. So, with the help of regulating mechanism the organism produced EPO which increased the level of RBCs in the blood resulting in excess oxygen supply. This is how an organism counters the lack of oxygen with the help of homeostasis.
Which of the following is a benefit of using renewable resources? A. Renewable resources are resilient to environmental stresses. B. Renewable resources are not affected by innovation. C. Renewable resources are replaceable by healthy ecosystems. D. Renewable resources contribute to a larger ecological footprint than nonrenewable resources.
The benefit of using renewable resources such as sunlight and wind is that they are replaceable by healthy ecosystems and contribute to sustainable environmental practices.
Explanation:Among the benefits of using renewable resources is that they are replaceable by healthy ecosystems. Thus, the answer to the student's question is C. Renewable resources are replaceable by healthy ecosystems. Renewable resources, such as sunlight and wind, are in abundant supply and are not in danger of being used up. The use of these resources contributes to a more sustainable environment, which means they can be used in a way that meets the needs of the present without compromising the ability of future generations to meet their own needs. This includes the sustainable harvesting of wood, cork, and bamboo, as well as sustainable agricultural practices. Using renewable energy sources like wind, solar, and hydroelectric power not only helps to combat climate change by reducing greenhouse gas emissions but also promotes energy independence and local control over power generation.
What limits the maximum size of a cell
The primary limitation on the size to which a single cell can grow is a mathematical principle called the surface to volume ratio. As the size of a three-dimensional object grows, its volume increases more rapidly than its surface does, which causes metabolic problems for cells. Additionally, the amount of cytoplasm the nucleus can contain and the structural limitations on the cell prevent them from being larger as well.
The size of a cell is usually limited by the cell's surface-area-to-volume ratio.
What is a surface-area-to-volume ratio?The surface area of the object divided by its volume is referred to as the surface-area-to-volume ratio.
The size and shape of different cells are different and is limited by the surface-area-to-volume ratio.
Thus, the answer is a surface-area-to-volume ratio.
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vScientists define the current period of time as the Anthropocene, or "age of humans." Which statement best describes the role of humans during the Anthropocene? A. Humans are the most numerous species on Earth. B. Humans live in all habitats where life exists. C. Human activities have become the major cause of global change. D. Human activities are achieving the goal of maintaining the Anthropocene indefinitely.
I believe the answer would be B-Humans live in all habitats where life exists.
Which of the following is not a reason that analyzing and collecting weather records is important?
A. Weather data can be collected to make climate maps.
B. Predicting future climate events, such as droughts, can be easier.
C. Collecting weather records can help scientists see patterns in the weather.
D. Collecting weather data helps geologists locate land that has been weathered.
Sorry I am late I think its D.. please let me know if it is correct or not thanks!!
Answer:
Collecting weather data helps geologists locate land that has been weathered
Explanation:
Nonrenewable resources are those that _____.
Nonrenewable resources are things that can't be re -newed.
For example: Coal takes thousands, even millions of years to form.
Once coal, or any nonrenewable item is used up they will be gone for millions of years.
That being said, nonrenewable items are basically limited.
Also, nonrenewable resources are made naturally, not made by man.
Here are some examples of nonrenewable resources:
1) Fossil Fuels.
2) Natural gas.
What are the different types of mutations
Answer:
Mutation can be defined as any change in the single base pair of the nitrogenous bases present in the DNA.
This change can be beneficial or harmful for the organism in which the mutation occurs.
The mutation can be of three types: Base substitution, base deletion and base insertions.
In case of base substitution a single or multiple base pair is substituted by another base pair which can produce a faulty protein.
In case of deletion any single or multiple base pair is deleted and due to that faulty proteins are produced.
In case of insertion mutation, base pair is inserted between the triplets which changes the predefined codes that leads to various disease and syndrome.
Sometimes the mutation can be beneficial or can cause no effect on the body of individual.
Of the following, where would we most likely find water in the form of a gas?
I assume, in the atmosphere, you would most likely find water in the form of gas.