Answer:
The sun, the star Proxima Centauri, and the star Polaris.
Explanation:
The sun and stars emit light on their own, therefore they are luminous.
the hydrologic cycle requires an excess of evaporation
The hydrologic cycle does not require an excess of evaporation; instead, it relies on a balanced and continuous process of evaporation and precipitation.
The hydrologic cycle, or the water cycle, is a continuous and balanced process through which water circulates on Earth. It involves several interconnected stages, including evaporation, condensation, precipitation, and runoff. It does not require an excess of evaporation but rather relies on a dynamic equilibrium between evaporation and precipitation. Evaporation occurs when water changes from its liquid state to a vapor or gas form, primarily from water bodies such as oceans, lakes, and rivers. This vapor rises into the atmosphere. Subsequently, condensation takes place as the water vapor cools and transforms back into liquid droplets, forming clouds. These clouds eventually release moisture through precipitation, which can occur as rain, snow, sleet, or hail. Precipitation replenishes the Earth's water sources, such as rivers, lakes, and groundwater, and completes the hydrologic cycle. The hydrologic cycle is a fundamental process that sustains life on Earth by ensuring a continuous supply of fresh water. It is a balanced system where evaporation and precipitation occur in harmony, maintaining the overall distribution and availability of water resources.
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Part 3. Which of the following arguments are invalid and which are valid? Prove your answer by replacing each proposition with a variable to obtain the form of the argument. Then prove that the form is valid or invalid. (12) The patient has high blood pressure or diabetes or both. The patient has diabetes or high cholesterol or both. ∴ The patient has high blood pressure or high cholesterol.
The statements mentioned are invalid and have no argumentive point.
Let A = "the patient has high blood pressure", B = "the patient has diabetes", and C = "the patient has high cholesterol". Then the argument can be rewritten as:
A ∨ B
B ∨ C
∴ ∨ C
This argument is invalid. An example is given below to understand in a clear way:
Suppose A is true (the patient has high blood pressure) and B and C are both false (the patient does not have diabetes or high cholesterol). Then both premises are true, but the conclusion is false.
Therefore, the argument is invalid.
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Which statements describe freshwater sources? Check all that apply.
Rainwater can replace or replenish freshwater sources.
Precipitation, such as rainwater, is the source of freshwater on Earth.
When the amount of surface freshwater increases, so does the amount of groundwater.
Human activity, such as taking a bath, may change the quality of a freshwater resource.
Pollution in lakes does not affect groundwater because the ground acts as a barrier or filter.
Precipitation, such as rainwater, is the source of freshwater on Earth is the source of freshwater .
What is freshwater ?Freshwater is defined as water with less than 1,000 milligrammes per litre of dissolved particles, most commonly salt. Surface water bodies on Earth are usually thought of as renewable resources as part of the water cycle, despite their reliance on other parts of the water cycle.
What is water cycle ?The water cycle is frequently presented as a straightforward continuous cycle of evaporation, condensation, and precipitation. Although this is a helpful model, the reality is far more complex. Water's paths and influences in Earth's ecosystems are highly complex and not fully known. NOAA is working to improve our knowledge of the water cycle at all scales, from global to local, in order to better predict weather, climate, water resources, and ecosystem health.
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Answer:
A,B,C,D took on edge
Explanation:
what was the first disney animated film based on the life of a real person?
Answer:
"Pocahontas" is the right answer! (:
.True or False: Most mutations are neutral; they have little or no effect.
Answer:
true
Explanation:
the majority of mutations are neutral in their effects on the organisms in which they occur . beneficial mutations may become more common through natural selection. harmful mutations may cause genetic disorders or cancer :))
PET imaging during an experiment studying the effect of attending to specific features of a visual stimulus showed the greatest brain activity for moving stimuli occurred in which area of cortex? Choose the correct option.
a. IT
b. MT
c. V4
d. Area 17
The greatest brain activity for moving stimuli was observed in area MT of the cortex.
Area MT, also known as the middle temporal area or V5, is a region of the cortex that is primarily involved in processing motion information. PET imaging during an experiment studying the effect of attending to specific features of a visual stimulus revealed that the greatest brain activity for moving stimuli occurred in this area.
Area MT is located in the posterior part of the middle temporal gyrus in the visual cortex. It receives input from the primary visual cortex (area 17) and processes information related to the perception of motion, direction, and speed of visual stimuli.
The specialized function of area MT in processing motion information makes it particularly active when subjects are attending to moving stimuli. PET imaging, which measures brain activity by detecting changes in blood flow or metabolism, can reveal regions of increased neural activity in response to specific tasks or stimuli.
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Most enzymes are proteins. Many cells make and use an enzyme called catalase to facilitate the decomposition of hydrogen peroxide (H2O2). The products of the decomposition are hydrogen (H2) and oxygen (O2). Stephanie is investigating the structure and function of catalase, and she is comparing catalase to other proteins. What can Stephanie predict will distinguish the structure of catalase from the structures of the other proteins she is studying? A. many regions made entirely of hydrogen and oxygen B. the chemical properties of the peptide bonds C. the types of amino acids it contains D. the sequence of amino acids it contains
Answer:
The correct answer is - B. the chemical properties of the peptide bonds.
Explanation:
The difference between the structures of catalase from other proteins depends on the chemical properties of the peptide bonds present in between the amino acids which decide the pH and temperature by their disruption. These bonds present between two alpha-amino acids when carboxyl of one amino acid interacts with the amino group of the other to form an amide-type covalent bond.
True or false? Polymers made of monosaccharides are the main fuel source for the body.
Answer:
false
Explanation:
The most nutritionally important and abundant monosaccharide is glucose, which is used as the major cell fuel in the human body and can be found unbound in body tissues and fluids. Glucose is the building block of several polysaccharides.
Answer:
false....
Explanation:
A polymer is any of a class of natural or synthetic substances composed of very large molecules, called macromolecules, which are multiples of simpler chemical units called monomers. Polymers make up of the materials in living organisms and are the basis of many minerals and man made materials.
2.
Which describes the genes on each pair of chromosomes?
The alleles must be the same; the genes are in a different order.
The alleles must be the same; the genes are in the same order.
The alleles can be different; the genes are in a different order.
The alleles can be different; the genes are in the same order.
*
ahh ༎ຶ‿༎ຶ please help I'm stuck
Which of the following most correctly describes the Law of Conservation of Energy?
a) Energy can never be created or destroyed, but it can be transformed.
b) Energy can never be created or destroyed, it cannot even be transformed.
c) Energy can only be created or destroyed if the enthalpy of reaction is negative.
d) Energy can only be created or destroyed if the enthalpy of reaction is positive.
The one which the following most correctly describes the Law of Conservation of Energy is Energy can never be created or destroyed, but it can be transformed.
The Law of Conservation of Energy can be defined as a law that states that the total energy of a closed system remains constant. It implies that energy can neither be created nor destroyed, it can only be transformed from one form to another. The law of conservation of energy is the first law of thermodynamics. Thus, energy can convert from one form to another, as the likes of chemical energy to electrical energy, or kinetic energy to potential energy. This law is fundamental to the field of physics and plays a pivotal role in several disciplines, incorporating engineering, chemistry and ecology.
Hence, it is a fundamental principle of nature that states that the total amount of energy in an isolated system remains constant over time. Therefore, Option (A) is the most correct description of the Law of Conservation of Energy.
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Chromosomal centromeres split and chromosomes migrate to opposite ends of the cell. group of answer choices metaphase late prophase anaphase telophase early prophase
Chromosomal centromeres split and chromosomes migrate to opposite ends of the cell. This is known as anaphase. Option C
This is further explained below.
What are chromosomes?Generally, Chromosomes are structures that are similar to threads that may be found within the nucleus of animal and plant cells.
Protein and a single molecule of deoxyribonucleic acid are the two components that make up each chromosome (DNA).
DNA is a genetic material that is inherited from one generation to the next and includes the instructions that distinguish one species of the living thing from another.
The fourth and final phase of mitosis is called anaphase, and it is the process that divides the duplicated genetic material that is contained in the nucleus of a parent cell into two daughter cells that are identical to the parent cell.
In conclusion, The centromeres of the chromosomes break apart, and the chromosomes move to the opposite ends of the cell. This stage is referred to as the anaphase.
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CQ
Chromosomal centromeres split and chromosomes migrate to opposite ends of the cell.
group of answer choices
metaphase
late prophase
anaphase
telophase
early prophase
whether a synapse is excitatory or inhibitory is determined by the
Metal are malleable and ductile. Explain on the basis of the electron sea level?
Metallic Bonding is restricted to metals only. In the metallic bonding, There is a electrostatic force of atrraction between the metal ions (which are positive)
and the electrons(which are negative).
The metal ions are arranged in a lattice pattern which is the regular repetitive structure.
_____________________________________Electron Sea Level:Every metal atom donate one or two valence electrons, so due to the BULK presence of the electrons, It results in a formation of sea of electrons. So the valence electrons don't just stay on their own atom, they roam around the whole metal. They are just like a sea of electrons. This is why it is called the electron sea model. basically metal ions are present as a iceberg or island in the freely floating sea of electrons.
_____________________________________How is Sea of electron related to the malleable and ductile property?The sea of electron works as a electron GLUE, That means the metal ions are strongly ATTRACTED to the electron, so When apply pressure on the metals they DONT BREAK that means they are not brittle but malleable and ductile. This is because of the moving electrons and because the cations slide easily past each other, The ability of the atoms to roll over each other into new positions without breaking the metallic bond is because of the electron glue.
_____________________________________IMPORTANT STATEMENTSBrittle; Hard but breakable due to absence of sea of electron.
Malleable and Ductile; Transformed into sheets and thin wires so they are somewhat ELASTIC.
There have been many oil spills over the years. Perhaps you heard or learned about the Gulf oil spill in the U.S. that happened in April 2010? A spill like this that is close to land causes many problems for the environment and makes it difficult to clean up. As little as three gallons of oil can spread to make a slick mess covering one acre of the ocean's surface. With the Gulf oil spill, it's estimated that 200,000 gallons a day spilled into the ocean. Oil spills like this are very damaging, but they aren't the only source of oil that is polluting our waters. Rain washes particles from air pollution into the ocean. And one of the biggest sources of oil polluting is from the oil people put down their drains every day or runoff from parking lots. Oil and water don't mix—perhaps you have heard this before? And you probably know that oil is sticky and greasy. This makes it even more difficult to clean up. Let's take a look at the chemical properties of oil and water to see why. Each water molecule is made of two hydrogen atoms and one oxygen atom - H2O. When the two hydrogen atoms bond with the oxygen, they attach to the top of the molecule, rather like Mickey Mouse ears. This molecular structure gives the water molecule polarity, or a lopsided electrical charge that attracts other atoms. Because of their polarity, water molecules are strongly attracted to one another. This also gives water its unique properties. Oil is made of more complex molecules, containing carbon and hydrogen. Oil molecules are non-polar, meaning they don't stick together like water molecules do. Oil is thick and heavy, yet its molecules are spread farther apart, lowering the density. Because it has a lower density, oil floats on water's surface.
Answer:
mddmdnxxnxnxnxnxbbxxbhcxjsjsjwuwususussjdjxjxjxjxj
please help!! struggling rn
The eye is a complex organ that plays a crucial role in vision. Some of its key structural features include the cornea, iris, pupil, lens, retina, optic nerve, and sclera.
The eye is a complex organ that is responsible for allowing humans and other organisms to see the world around them. It is made up of several different structures, each with its own unique functions. The cornea is the transparent outer layer of the eye that covers the iris, pupil, and anterior chamber. It helps focus incoming light onto the lens. The iris is the colored part of the eye that surrounds the pupil. It regulates the amount of light that enters the eye by adjusting the size of the pupil.
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Which of the flowers are found in unexpected places on the DNA cladogram? Figwort, Plantain, and Speedwell If you look at the cladograms side by side it is clear that Figwort is not as closely related to Foxglove or Speedwell.
The flowers are found in unexpected places on the DNA cladogram is Figwort. If you look at the cladograms side by side it is clear that Figwort is not as closely related to Foxglove or Speedwell.
In the DNA cladogram, it is evident that the Figwort flower is found in an unexpected position. This observation is particularly interesting when comparing Figwort's relationship to Foxglove and Speedwell. Contrary to what one might expect, Figwort is not as closely related to these two flowers as one might initially think. Meanwhile, Plantain and Speedwell flowers are more closely related to each other, revealing an interesting aspect of their genetic relationships.
The cladogram, which is a diagram that showcases evolutionary relationships among different species, provides insights into the genetic makeup and history of various plants. This information helps scientists better understand the diversity and connections between species. So therefore in this case, the unexpected position of Figwort in the cladogram highlights the complexities and surprises found within the genetic relationships of these three flowers, ultimately allowing for a deeper understanding of their evolution and development.
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What is the molecule in this image?
Nucleic acid
A protein
A lipid
A carbohydrate
Answer:
a protein
Explanation:
amino acids are the monomers of proteins
WHAT DOES CALORIE MEANS ?
caloory moment
i hope this helped! please mark me as brainliest and 5 stars >:)
The pharynx is also a structure within which of the following body systems?
A. Reproductive system
B. Circulatory system
C. Respiratory system
D. Nervous system
What is a variation of giraffes
Answer:
Actually, what we thought of as a “giraffe” is four different species. ... They've since renamed them, very creatively spinning off on the giraffe theme: the Masai giraffe, the reticulated giraffe, the southern giraffe, and the northern giraffe
Explanation:
Answer:
Actually, what we thought of as a “giraffe” is four different species. ... They've since renamed them, very creatively spinning off on the giraffe theme: the Masai giraffe, the reticulated giraffe, the southern giraffe, and the northern giraffe.Sep 9, 2016
Explanation:
there
How are bacterial chromosomes different from eukaryotic chromosomes?
Answer:
A bacterial chromosome is a circular, double-stranded DNA molecule with associated proteins. A eukaryotic chromosome is a linear, double-stranded DNA molecule with many associated proteins, including histones.
Explanation:
After you stimulate the neuron, why do you have to wait before stimulating it again?
Between stimulations, a neuron needs time to recover to its resting potential.
Why can't you immediately stimulate the neuron after it fires?The sodium channels responsible for the fast membrane potential depolarization, however, must first recover from inactivation, which takes some time. As a result, neurons cannot fire right away after an action potential.
What takes place after a neuron is activated?When a neuron is stimulated, an action potential is produced. This potential travels along the length of the axon and towards a connecting neuron.
Can a neuron be stimulated too much?Yet, if the glutamate signalling pathway doesn't stop when it should, brain neurons will get overstimulated and harmed, which will result in the emergence of brain illnesses.
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According to Lamarck the long neck of a giraffe
would be considered a(n)
A. None of the other answer choices
B. mutation
C. dominant trait.
D. acquired characteristic.
Answer:
i believe it is a. none of the above.
Explanation:
lamarck's idea suggested they stretched their necks and passed the stretching down through generations.
pls help everyone is using me for points if you use me for points I'll report (;
Answer:
OH LOL I DID THIS IN 7TH GRADE
Explanation:
so if i remember when the trees where white the pepper moths that where white survived more often that the black ones, then when the industrial war came the trees where covered in ash, so the white moths survived
MY SENTENCE
It shows how a change in an environment can effect a species natural selection, for example the white moths survived more than the black moths so the reproduced while the black moths where eaten by predator's, then when the environment changed and favored the black moths they survived and reproduced while the white moth got picked off by predators.
Hope this helped mate :>
What two major novelties allowed for the first colonization of terrestrial habitats by plants? A. tracheids and vessel elements B. cuticle and pores C. roots and true leaves D. roots and vascular tissue E. All of these answers apply.
Answer:
running race
Explanation:
it's nice to run it gives us protein powder
Please help!! will give 10 points!! Two scientists want to compare their research of fireflies. Which information must the two scientists provide to each other to determine if they studied the same type of fireflies? (B.8, A) *
1 point
Size of the firefly populations
Type of habitat in which the fireflies live
Color of light produced by the fireflies
Species name of the fireflies studied
Answer:
its the last answer "species name of the fireflies studied" t
Explanation: i took a quiz with the same question and got it right
The correct answer is the species name of the fireflies studied by the two scientists provide to each other to determine if they studied the same type of fireflies.
The species name of the fireflies studied is important as it provides binomial nomenclature to be explained well. A sit allowed people to communicate about the species world.
What is binomial nomenclature ?In taxonomy, the binomial nomenclature provides names for species of flora and fauna in the living world.
Hence concluded that information must the two scientists provide to each other to determine if they studied the same type of fireflies is the best information Species name of the fireflies studied.
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what is the increase in water vapor doing to summer nights in many places across the globe?
What’s the corresponding mRNA strand for this DNA strand: TACGGGATAAGGCCACCTCTGGTAGACCACATT
Thymine(T) pairs with adenine(A)
Adenine(A) pairs with uracil(U)
Cytosine(C) pairs with guanine(G)
therefore the corresponding mRNA strand for TACGGGATAAGGCCACCTCTGGTAGACCACATT
is
AUGCCCUAUUCCGGUGGAGACCAUCUGGUGUAA
Gender can be defined as all of the following EXCEPT: the psychosocial ramifications of biological sex an ascribed status characteristic an acquired and transmitted pattern of shared meaning, feeling, and behavior a multidimensional phenomenon with many different facets, including gender schemas and stereotypes, gender-role identity, attitudes, and values
Gender can be defined as all of the following: the psychosocial ramifications of biological sex, an acquired and transmitted pattern of shared meaning, feeling, and behavior, and a multidimensional phenomenon with many different facets, including gender schemas and stereotypes, gender-role identity, attitudes, and values.
Gender can be defined as the psychosocial ramifications of biological sex, an acquired and transmitted pattern of shared meaning, feeling, and behavior, and a multidimensional phenomenon with many different facets, including gender schemas and stereotypes, gender-role identity, attitudes, and values. However, it is not accurate to define gender as an ascribed status characteristic. Unlike attributes such as age or race, which are typically assigned at birth and remain constant throughout life, gender is a social construct that encompasses a complex interplay of individual, cultural, and societal factors. It is not solely determined by external factors but also involves personal identity and self-perception. While gender can be influenced by societal norms and expectations, it is not solely an ascribed status but rather a dynamic concept that individuals may engage with and interpret in different ways.For more such question on gender
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