Based on the chart, how are fish and dogs related?
They belong to the same kingdom but different phyla.
They belong to the same phylum but different classes.
They belong to the same kingdom and class.
They belong to the same phylum and class.
Based on the chart. fish and dogs related in that they belong to the same phylum but different classes.
What is taxonomic classification?Taxonomic classification is the science oif classifying living organisms based on similarity in structure, function of body parts and biochemical composition.
In taxonomic classification, organisms are classified into:
Kingdoms,Phylum,Class,Order,Family,Genus and Species.Based on the chart. fish and dogs related in that they belong to the same phylum but different classes.
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Answer:
fish and dogs
Explanation:
i did the test
How does the energy from the sun help the tree in the process of photosynthesis?
A.chlorophyll in the leaves capture the suns energy and uses it to make food from carbon dioxide from the atmosphere and water through the roots
B.the tree captures the energy from the sun, making its leaves and bark too hot for predators to eat
C.the tree absorbs most of the suns heat so that the animals may survive in an atmosphere where the temperature is much less
D.the tree does not rely on the suns energy in any way
The Doppler effect changes the
A) Frequency due to motion
B) Speed of sound due to motion
C) Speed of light due to motion
D) Radar waves in a police car
Which of the following best describes the conditions created by El Niño? When is that normally blowup to east get stronger waters off the coast of north America cool down and upwelling increases in proving the nutrients in the water. Wednesday normally blood to the west get stronger waters off the coast of South America cool down and upwelling increases improving the nutrients in water. When is the normally blowup to the west slacken waters off the coast of South America walk up and upwelling decreases reducing the nutrients in the water
A globe is placed on your desk and you are asked to identify its physical properties. How would you describe the globe?
A globe is a spherical model that precisely represents the Earth's geography with a true-scale size and shape of continents and oceans, but it has limitations such as being less portable and not showing all sides simultaneously.
To describe the physical properties of a globe placed on a desk, one would note several characteristics. A globe is a spherical representation of the Earth, including details such as continents, countries, and geographical features like mountains and oceans. It is equipped with a geographic coordinate system and a scale which helps to maintain accurate distances and proportions between locations. Due to its shape, a globe provides a distortion-free representation of Earth's geography, preserving both the size and shape of landmasses and bodies of water. However, a globe has limitations as it is not as portable as flat maps, cannot be viewed entirely at once, and cannot be easily stored in compact spaces. Moreover, while globes provide a true-to-scale representation of the Earth, they cannot be easily enlarged to show detailed views of specific areas.
In two or more complete sentences, describe two differences between electromagnetic waves and mechanical waves.
Why is the deuterium-tritium reaction the most promising nuclear fusion reaction for future energy production?
Answer:
The most promising of the nuclear fusions reactions for the future is the deuterium-tritium fusion, it comprises the deuterium cycle in which an amalgamation of tritium and deuterium takes place. The reaction produces an enormous energy of 17.6 MeV, however, to attain fusion there is a need to infiltrate the coulomb barrier with the help of tunneling, needing very high temperatures.
Identify a situation in which you would want to have a high resistance and a situation in which youwould want to have a low resistance
Final answer:
In physics, high resistance is essential for safety in insulators, such as those for power lines, to prevent current leakage, while low resistance is desired in electrical wiring for devices to ensure minimal energy loss and efficient power transmission.
Explanation:
In the realm of physics, scenarios necessitate the use of different resistance levels based on the desired outcome. A situation in which you would want to have a high resistance is an insulator for power lines. These ceramic insulators have resistances of 1012 ohms or more to prevent electrical currents from leaking away from the power lines. On the other hand, a situation where you would want a low resistance is in electrical wiring that powers devices. For example, a large-diameter copper wire which may have a resistance of 10-5 ohms, allowing electricity to flow with minimal energy loss.
Additionally, resistors control current flow in circuits; a huge increase in resistance will reduce current, while a huge decrease in resistance increases current flow. Considering safety, a person working around possible electric hazards would want high resistance insulation to protect against electrical injuries; a resistor shown with a resistance of 20 × 105 ohms is an example of a protective measure.
Consider this reaction. What volume (in milliliters) of oxygen gas is required to react with 4.03 g of Mg at STP? 1860 mL 2880 mL 3710 mL 45,100 mL
Answer: 1860 mL
Explanation:
[tex]2Mg+O_2\rightarrow 2MgO[/tex]
According to Avogadro's law , 1 mole of every gas occupies 22.4 L at standard temperature and pressure and 1 mole of every substance weighs equal to its molar mass.
[tex]2moles=2\times 24.305=48.61g[/tex] of Magnesium reacts with 22.4 L of oxygen gas STP.
4.03g of Magnesium reacts with=[tex]\frac{22.4L}{48.61g}\times 4.03g=1.86L=1860ml[/tex] of oxygen gas STP.
How did Mendeleev arrange the known elements in his periodic table?
Mendeleev was the first scientist to classify elements into what called the periodic table. However, unlike the modern periodic table that we use today, Mendeleev classified elements based on the mass number and not by atomic number.
What is periodic table ?Periodic table classify all known elements into different groups and periods. The vertical columns in the table are called groups and the horizontal rows are called periods. All the elements are classified based on their atomic number in the modern periodic table.
At the time of Mendeleev there were only 65 to 70 known elements. He classified these elements based on their mass number. The periodicity of these elements and their classification into groups all were based on their mass number.
However, later Mosely found that, the properties of an atom is purely based on their atomic number and not by mass numbers. He forwarded the modern periodic table based on the atomic number of elements.
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Nitrogen can ionically bond with an unknown element X from group 2. How many ions of element X are required to create a stable ionic compound with nitrogen? A) 2 B) 3 C) 4 D) There is not enough information.
Answer is: B) 3.
Nitrogen (nonmetal) in this compound has oxidation number -3 and element X (metal) has oxidation number +2.
Smallest common multiple for 3 and 2 is 6.
number of nitrogen atoms = 6 ÷ 3.
number of nitrogen atoms = 2, there are two nitrogen atoms.
number of atom X: 6 ÷ 2 = 3.
For example, Mg₃N₂ is magnesium nitride. Nitrogen has -3 oxidation number and magnesium has oxidation number +2.
what is sodium polycrylate
She is flying in windless conditions along the equator what is the area c called
Which of the following rate constants corresponds to the reaction that converts reactants to products in the least amount of time? A. 4.48 x 10-5 min-1 B. 4.48 x 10-5 s-1 C. 0.0547 s-1 D. 0.0547 min-1
If you purchase four 750 gram jars of table salt (NaCl) and dump them all onto 1,000 kg of snow, how much would the freezing point be lowered after all of the salt has dissolved?
Final answer:
When dissolving table salt in snow, the freezing point depression can be calculated based on the number of ions formed. By converting the mass of the salt to moles and considering ion dissociation, the freezing point depression can be determined.
Explanation:
The freezing point depression of a solution can be calculated by considering the number of ions formed upon dissolving the salt in water. In this case, if you dissolve four 750 gram jars of table salt (NaCl) on 1000 kg of snow, the total mass of salt would be 3000 grams. Converting this to moles and considering the dissociation of NaCl into Na+ and Cl-, you can calculate the freezing point depression using the formula provided.
what causes the salinity of ocean water to decrease
Answer:
The salinity of the sea decreases due to an increase in fresh water in the ocean from the melting of the polar ice caps.
Explanation:
Ocean water can become saltier or fresher depending on environmental factors.
Melted ice, fresh water, will decrease the salinity of the oceans. That is, the process of oceanic desalination or decrease in salinity, known as freshening, is generated by the discharge of fresh water from the ice of glaciers into the salty water of the seas that surround it.
In a chemical reaction occurring in an open beaker, the reactants have a mass of 10.0 g and contain 1000 J of energy. The products in the beaker contain a mass of 5.0 g and 500 J of energy. Which best explains the difference in energy and mass as reactants are converted to products? kinetic energy closed systems law of conservation electromagnetic energy
Answer : The correct option is, Kinetic energy.
Explanation :
According to the kinetic energy, the kinetic energy is directly proportional to the mass of an object and the square of the velocity of an object.
The formula of kinetic energy is,
[tex]K.E=\frac{1}{2}\times m\times v^2[/tex]
where,
K.E = kinetic energy
m = mass of an object
v = velocity of an object
From this we conclude that there is a direct relationship between the kinetic energy and the mass of an object.
As per question, the reactant have a mass of 10 grams and contains energy 1000 J and the product have a mass of 5 grams and contains energy 500 J that means as the mass of an object decreases, the kinetic energy is also decreases.
Hence, the correct option is, Kinetic energy.
Answer:
C. law of conservation of energy
This is the correct answer on edge.
the gram formula mass of a compound is 48 grams. the mass of 1.0 mole of this compound is
describe the difference in structure between beH2 and CaH2
How is compound different from a mixture?
A. it is made of one substance
B. it cannot be made of organic materials
C. it cannot be broken down
D. it cannot be separated by a physical change
True or False: The atoms that make up the element oxygen are exactly the same as the atoms that make up the element hydrogen.
A.
True
B.
False
The statement that atoms that make up the element oxygen are exactly the same as the atoms that make up the element hydrogen is False.
This is because, all atom of different element are unique, and elements are all the different types of atoms.
What is an atom?An atom can be regarded as the smallest unit of ordinary matter which is required in making chemical element.
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Which of the following best describes an advantage of cloning? Can prevent genetic diseases Can increase genetic diversity Helps increase lifespan of cloned organisms Helps reduce health issues in cloned organisms
Answer:
prevents genetic diseases
Explanation:
yes
An advantage of cloning is that it can potentially prevent genetic diseases in organisms. Cloning allows for the replication of an organism's genetic material without introducing new genetic variation, which means that if the original organism is free from certain genetic diseases, its clones would also be free from those diseases. This can be particularly valuable in agricultural and medical contexts.
For example, in agriculture, cloning can be used to replicate plants or animals that have desirable traits and are disease-free. This ensures a consistent supply of healthy, high-yield crops or livestock, reducing the risk of crop failure or disease outbreaks.
In the medical field, cloning can be used for therapeutic purposes to create tissues or organs for transplantation. By cloning cells from a patient's own body, the risk of immune rejection is minimized, reducing the chances of complications and improving the patient's overall health.
However, it's essential to note that while cloning has its advantages, ethical and moral considerations, as well as potential unintended consequences, must be carefully addressed when implementing cloning technologies.
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which three factors are most important in determining the composition of ocean water
The three main factors that help in determining the composition of ocean water are temperature, salinity, and density.
The temperature helps in determining the rate of evaporation of the sea. Next factor is salinity, it helps in knowing the salty nature of the ocean, and helps in identifying the other essential factor of ocean water, that is, density. The density is one of the most essential factors, as ocean having more salt composition are less dense in comparison to those having less salt.
A series circuit contains two devices, one with a resistance of 10 ohms and one with a resistance of 4 ohms. If the generator supplies a voltage of 42 V, what is the magnitude of the current? P
Answer : The magnitude of the current is, 3 ampere
Solution :
In a series circuit, the total resistance will be,
[tex]R=R_1+R_2[/tex]
[tex]R=10\Omega +4\Omega =14\Omega[/tex]
Using coulomb's law,
[tex]V=I\times R\\\\I=\frac{V}{R}[/tex]
where,
V = voltage = 42 V
I = electric current
R = resistance = 14 ohms
Now put all the given values in the above formula, we get
[tex]I=\frac{42V}{14\Omega}=3ampere[/tex]
Therefore, the magnitude of the current is, 3 ampere
A person who is interested in the role of genetics in health might pursue a career in
A)endocrinology
B)gene therapy
C)neuroscience
D)sports medicine
what is one result of meiosis?
What is the quantity of heat that is released when 27.9 g of H2O condenses? Use mc021-2.jpg. 60.00 kJ 61.05 kJ 63.09 kJ 68.60 kJ
Which property of an object changes when an unbalanced force acts on it?
A. Mass
B. Inertia
C. Velocity
D. Temperature
Answer:
velocity is the answer i just did this quiz
does the author succed in persuading you to accept his argument?
Why are two changes of state of the refrigerant necessary to operate a refrigerator?
The two changes of state of the refrigerant are necessary to operate a refrigerator because liquid refrigerant must evaporate and cool.
What is refrigerator?A refrigerator is a heat engine in which work is done on a refrigerant substance in order to collect energy from a cold region and exhaust it in a higher temperature region, thereby further cooling the cold region.
What is liquid refrigerant?The liquid refrigerant is used for heat transfer in a refrigeration system, which absorbs heat at a low temperature and low pressure and rejects heat at a higher temperature and a higher pressure.
Explain refrigeration cycle?This cycle is based on the process of changing the physical state of the liquid refrigerant (from liquid to gas and vice versa). These substances condense to liquid at high pressures and evaporate to gases) at low pressures. The cold in cooling systems happens due to the change of state of this liquid refrigerant fluid to gas.This process depends on the work done by the compressor – which uses mechanical energy to compress the liquid refrigerant from the evaporator in the gas phase.With this compression, the pressure and temperature of the liquid refrigerant increases. When it enters the condenser, the refrigerant transfer the heat to the environment, causing its temperature to decrease and condensation occurs, which is the process of phase change from gas to liquid.After that, the liquid refrigerant passes through the control element – capillary tube or expansion valve – which, by narrowing the passage, slows its speed on the evaporator, causing its pressure to decrease. The liquid refrigerant arrives on the liquid state and under low pressure to the evaporator, during which it is changing phase again, from liquid to gas. When you change phase, it absorbs the heat present in the conditioned items in the refrigerator case and returns to the compressor, restarting the refrigeration cycle.The liquid refrigerant must evaporate (change from a liquid to a gas) and cool. This process releases heat. The cool gas is pumped through tubes so that it can absorb heat from the interior of the refrigerator, keeping it away from the food. Then the gas must condense into a liquid so that it can release the absorbed heat to the outside and begin the cycle again.
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