In the scientific community, a proposition is a well- tested and vindicated explanation for certain marvels.
Understanding the proposition of elaboration Critics of the proposition of elaboration frequently dismiss its significance by conflating the everyday operation of the word" proposition" with its scientific meaning.
In wisdom, a proposition is a body of completely tested and vindicated explanations for a set of compliances of the natural world. For illustration, we've a proposition of the snippet, a proposition of graveness, and the proposition of reciprocity, each describing well- understood data about the world. also, the proposition of elaboration describes data about the living world and has survived significant sweats to discredit it by scientists, who are naturally skeptical. In discrepancy, in common conversational, a" proposition" frequently means a conjecture or a suggested explanation, more akin to what scientists relate to as a thesis. When critics say elaboration is" just a proposition," they indicate there's little substantiation supporting it and that it's still witnessing rigorous testing. This is a mischaracterization since the proposition of elaboration is supported by a substantial quantum of substantiation and is a well- established scientific propositionComplete question is : "Our current understanding of evolution is called a theory because it has been supported repeatedly as new discoveries have been made. proven to be exactly true as originally proposed. corroborated by data that were gathered during a single experiment. developed from the postulates of many scientists."
plant species has two alleles for leaf color. if plant species B has four alleles for leaf color , how will the two species differ in their appearance ?
Answer:
Allele is the different version of the same gene. Mostly one gene contains two alleles for a trait for example gene for flower color have two alleles R (for red flower) and r(for white flower) so only these two color can be seen in phenotype.
So if a plant species have only two allele for leaf color it can express only either of two color in its leaf but if a species contains more than two alleles for leaf color that the leaf can express any of color out of them.
Therefore species B will differ in appearance because it can express four-color due to having four alleles for leaf color but other species having only two alleles can express only two color.
What is the monomer of carbohydrate?
You went on vacation and forgot to water your plants. when you returned, the leaves were soft and wilted. name the organelle that became dehydrated
The organelle that becomes dehydrated when a plant is not watered is the central vacuole. This results in the leaves becoming soft and wilted due to the loss of turgor pressure, which can be restored by re-watering the plant.
When you returned from vacation and found the leaves of your plants soft and wilted, the organelle that became dehydrated is the central vacuole. The central vacuole in plant cells is critical for maintaining turgor pressure, which is the pressure of the cell's contents against the cell wall that keeps the plant rigid and upright. When a plant is not watered, the water concentration in the soil becomes lower than inside the plant; consequently, water moves out of the central vacuoles and cytoplasm, causing the vacuoles to shrink. This results in the loss of turgor pressure, leaving the cell wall unsupported and causing the plant to wilt.
It is analogous to a balloon deflating inside a cardboard box. When inflated, the balloon (vacuole) pushes against the sides of the box (cell wall), keeping it firm. As the balloon loses air (water), it stops supporting the box, leading the structure to droop. Re-watering the plant allows the central vacuoles to reabsorb water, re-expand, and re-pressurize the cells, restoring the plant's structure and its ability to stand upright, resisting the force of gravity.
What might happen to the food web below if the number of phytoplankton drastically decreased
D.
The entire food web, wood be, in fact, affected. You can follow the role path for the phytoplankton to see everything being affected.
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Tay-sachs disease causes lysosomes to rupture. how would this affect the cell? check all that appl
Tay-Sachs disease is a genetic disorder that affects the lysosomes, which are cellular compartments responsible for breaking down and recycling various molecules. The correct options are B, C, and D.
In this disease, a deficiency of the enzyme hexosaminidase. This lead to the accumulation of gangliosides, a type of lipid, within the lysosomes. This accumulation hampers the normal functioning of lysosomes, resulting in several cellular effects. Phagocytic cells, which rely on lysosomes to destroy bacteria, would be impaired in their ability to carry out this function. Material taken up through endocytosis, a cellular process of internalizing substances, would not be properly digested in the lysosomes.
Therefore, the breakdown of biological polymers and the oxidation of fatty acids by lysosomes would be compromised. These dysfunctions contribute to the characteristic features and symptoms of Tay-Sachs disease. The correct options are B, C, and D.
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The complete question is:
Tay-Sachs disease causes lysosomes to rupture. How would this affect the cell? Check all that apply.
A) Proteins would be degraded but not nucleic acids or lipids by lysosomes.
B) Phagocytic cells would not destroy bacteria.
C) Material taken up through endocytosis would not be digested.
D) Biological polymers would not be broken down by lysosomes.
E) Fatty acids would not be oxidized by lysosomes.
A scientist viewing a cell under a microscope sees that it has a cell wall and a large number of ribosomes. Which conclusion best describes what the scientist sees in the microscope?
A) The cell needs to replicate itself, so it must be getting ready to divide.
B) The cell is from an animal, so it must also have an endoplasmic reticulum.
C) The cell needs to produce a lot of protein, so it must be specialized.
D) The cell is from a plant and can photosynthesize, so it must also have chloroplasts.
Answer:
C) The cell needs to produce a lot of protein, so it must be specialized.
Explanation:
If a cell has a lot of ribosomes then it simply means transcriptionally it is very active. Such cells are said to have dense cytoplasm. Having more ribosomes and more transcriptional activity means that this cell has to produce more proteins as compared to other normal cells which do not have much ribosomes. It is a specialized cell which is meant to produce more and more proteins for a specialized function.
Which organism from kingdom protista is most closely related to animals?
What product of the Krebs cycle is considered a waste product of the reaction?
Carbon dioxide is considered as a waste product of Krebs Cycle.Before Krebs cycle begins pyruvic acid which has 3 carbon splits into two parts. Two carbon atom combines with co enzyme A and forms a compound called acetyl-co enzyme A.The third carbon atom left combines with oxygen to form carbon dioxide which is a by product of this cycle.The carbon dioxide formed here diffuses into the bloodstream and then carried to the lungs for exchange of gas.
The waste product of the Krebs cycle (also known as the citric acid cycle or tricarboxylic acid cycle) in biology is carbon dioxide (CO2). This is produced as a result of the breakdown of citrate during the cycle, and is expelled from the cell and exhaled by the organism.
Explanation:In biology, the Krebs cycle, also known as the citric acid cycle or the tricarboxylic acid cycle, is an important part of cellular respiration. During this cycle, acetyl CoA, a two-carbon molecule, combines with a four-carbon molecule called oxaloacetate to form a six-carbon molecule called citrate, or citric acid. As the cycle continues, citrate is oxidized, or broken down, to release high energy products like NADH, FADH2, and ATP or GTP, depending on the cell type.
Now, when referring to the waste product of the Krebs cycle, it is important to note that carbon dioxide (CO2) is produced during the cycle. For every acetyl group that enters the cycle, two carbon dioxide molecules are released. These carbon dioxide molecules are considered a waste product because they are not used within the cell for other metabolic processes. Instead, they are expelled from the cell and exhaled by the organism.
So, in summary, the primary product of the Krebs cycle that's considered a waste is carbon dioxide (CO2).
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what is the best explanation for why cells are considered the smallest units of living things
NEED HELP ASAP PLEASEEEEEEEEEEEEEEEEEE What profession is most likely to make use of amperes and candelas ? a) nurse practitioner b) marine biologist c) electrician d) athletic coach
Answer:
C why cause c seems most likely to be right
Which of the following terms refers to a permanent change to DNA or RNA that is typically caused by damaged or changed bases? A. Phenotype B. Mutation C. Protein D. Translation
The permanent change in DNA or RNA caused by a change in the bases or nucleotides is referred to as a mutation. Hence option B is correct.
How does a mutation occur?Mutations are caused by an error in the replication of DNA or due to the effects of some physical or chemical mutagens. These mutagens react with the DNA and change the structures of the DNA.
Mutation can be the result of high-energy radiation or environmental chemicals. Mutations can also occur spontaneously during DNA replication. Mutations can be classified into two categories: point mutations and chromosome aberrations.
There are different types of point mutations such as substitution, insertion, deletion, and translocation. If mutations occur in the repair genes, it may lead to severe consequences like cancer.
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Your heart pumps 3784 L of blood per day. How many gallons is that?
This area, indicated by the arrow, of the endoplasmic reticulum (er) is involved in ______.
The answer is synthesis of proteins. The endoplasmic reticulum assists many general functions, containing the folding of protein molecules in sacs called cisternae and the transport of synthesized proteins in vesicles to the Golgi apparatus. This takes two steps: transcription and translation.
In sleep apnea, how often do victims stop breathing?
The medical word used today for muscle is very similar to the latin word origin, which is:
Dna wraps around histone proteins to form repeating units called ___________.
Which phrase best defines a food chain? A. the sum of all actual feeding relationships in an ecosystem B. a single pathway of feeding in an ecosystem C. the ecological term applied to plants and other photosynthetic organisms that produce glucose D. organisms that eat other organisms
What are three possible problems that could have caused farley's symptoms?
Water striders are common insects that can skip across the surface of ponds and streams. this lifestyle is enabled by water's _____
Final answer:
Water striders are able to stand and skip across water due to water's surface tension, which is caused by cohesive forces between water molecules that create a 'skin' on the water's surface strong enough to support their weight.
Explanation:
Water striders are common insects that can skip across the surface of ponds and streams. This lifestyle is enabled by water's surface tension.
Surface tension results from cohesion or the attraction between water molecules at the surface of a body of water. This cohesive force creates a sort of 'skin' on the water's surface, which is able to support small insects like water striders, pond skaters, and water skaters. These insects are heavier than water, but because the force they exert downward is less than the force exerted among the water molecules at the surface, they do not sink.
Surface tension is a remarkable property that allows these small insects to effectively walk on water, making it seem as if they are floating. The legs of a water strider have adaptations that distribute their weight over a larger area, which helps to prevent breaking through the water surface.
Which step of the scientific method involves making an inference?
Answer:
draw a conclusion
Explanation:
Inference is an information-based deduction or reasoning that uses available data to reach a conclusion. To infer is to deduce a result, logically, based on the interpretation of other information. Inferencing can also mean reaching a conclusion from other perceptions or from analyzing one or more arguments.
According to this conceptualization, we can say that the only step in the scientific method where a scientist can make an inferences is the conclusion stage.
please choose the answer that describes the the scientific notation rotation for 5,098,000
Answer:
5.098 *10^6
Explanation:
While examining a specimen under the microscope, Janet discovers a structure that has some genetic material that has RNA but not DNA. What is the specimen?
Answer:
The correct answer will be virus.
Explanation:
The virus is the infectious agents which cannot replicate themselves. these viruses contain a protein capsid surrounding the genetic material.
The genetic material in the virus could be DNA or RNA but do not have both as single-stranded or double-stranded forms.
A virus with RNA are common in nature and an only a limited amount of RNA or DNA can fit a capsid and the capsid along with genetic material is known as the nucleocapsid.
Since the specimens show RNA but not DNA it is a virus-like Ebola, polio, measles, therefore, the specimen is virus and is the correct answer.
Answer:
Janet is watching an RNA virus.
Explanation:
Viruses are microorganisms classified according to their DNA or RNA nucleic acids. They are formed by a protein capsule, the capsids and, inside this, there is only DNA or RNA. Accordingly, we can say that Janet is observing an RNA virus under the microscope.
Some viruses are called enveloped because they have the capsid formed by a lipid membrane resulting from the invaded cell plasma membrane. The capsule is also responsible for the specificity of the virus to adhere to certain cells, this is only possible because they have membrane proteins (receptors) that can fit into their proteins.
List 3 ways that living creatures use carbohydrates
Suppose concordance data were collected from a cohort study of twins to study the genetic contribution to the onset of type 1 diabetes, also called juvenile diabetes. both monozygotic (identical) twins and dizygotic (fraternal) twins who grew up together in the same household were included. the concordance rate was found to be 73% among monozygotic twin pairs and 11% in dizygotic twin pairs. what general conclusion about type 1 diabetes can be drawn from these results?
how does chemical weathering make it easy for mechanical weathering to occur
Answer:
Chemical weathering can make mechanical weathering easy by changing the chemical composition of the rock.
The mechanical weathering of hard rocks is tough and takes time and the mechanical weathering of soft rocks takes less time.
The softness and hardness of the rocks depends on the chemical composition of the rocks. The chemical weathering changes the chemical nature of rocks and hence makes it easier to break down into smaller portions.
The magma chamber is found beneath volcanoes. true or false
Answer: True
Explanation:
A magma chamber is a large collection of liquified rock found beneath the volcanoes.The magma present in this chamber is under a lot of pressure and in order to release this pressure, it has to break through the rocks and reach the surface, thus resulting in a volcanic eruption.Therefore, the given statement is true.What are the abbreviations for a teragram, a nanosecond, and a kiloliter, respectively? enter the abbreviations, separated by commas?
The abbreviations for a teragram, a nanosecond, and a kiloliter, respectively, are Tg, ns, and kL.
One trillion grammes are equal to one teragram (Tg), a unit of mass. Large amounts of mass are frequently measured using it in geological and environmental situations.
A nanosecond (ns), which is one billionth of a second, is a measure of time. It is frequently used to quantify extremely brief durations in scientific and technological domains, such as high-speed computing or electronic transmission.
One thousand litres of volume are equivalent to one kiloliter (kL). In situations when litres might not be a useful unit of measurement, such as in industrial or agricultural settings, it is used to measure bigger amounts.
Thus, Teragram, nanosecond, and kiloliter are all denoted by the acronyms Tg, ns, and kL, respectively.
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Which of the following are part of the scientific method? Select all that apply
1.defining a problem
2.interpreting results
3.researching
4.subjective reasoning.
The one that is a part of the scientific method is researching. The correct option is 3.
What are scientific methods?The empirical approach to learning through observation of a specific phenomenon is referred to as the scientific method. Science is a methodical procedure that starts with a question.
It should be mentioned that a hypothesis is tested by an experiment according to the scientific process. The scientific process is based on meticulous study and experimentation, not on subjective judgment.
The scientific method, which involves comparing conclusions to observations of nature, is how scientists advance their knowledge. A scientist tries to clarify what conclusions can be derived after seeing a condition.
Therefore, the correct option is 3. Research.
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Explain the relationship between the observed gram reaction and bacterial cell wall structure
The relationship between the observed gram reaction and bacterial cell wall structure is crucial in distinguishing betweenGram-positive bacteria and Gram-negative bacteria.Gram-positive bacteria possess a thick cell wall with multiple layers of peptidoglycan, while Gram-negative bacteria have a thinner cell wall with fewer layers of peptidoglycan and an outer membrane.This difference in cell wall structure directly impacts how bacteria react to the Gram staining procedure, resulting in purple staining for Gram-positive bacteria and pink staining for Gram-negative bacteria.
what organelle encloses and supports the cell in plants