A radula is a specialized feeding organ used to scrape material off of food for ingestion, much like a cheese grater scrapes shreds off of a block of cheese. Snails, which have this structure, are thus which kind of feeder?.
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A radula is a specialized feeding organ used to scrape material off of food for ingestion, much like a cheese grater scrapes shreds off of a block of cheese. Snails have a radula, which is a chitinous band with rows of tiny, sharp teeth, this is kind of scraping feeder.
The radula's teeth are used to scrape food into the snail's mouth, a snail, as a result, is classified as a scraping feeder. Scraper feeders use their mouth parts to scrape and grind away at their food, rather than biting or piercing it. They're usually herbivorous, and they use their radula to scrape algae or other plant material off rocks, leaves, or other surfaces.
Scraping feeders can be found in a variety of environments, including freshwater, saltwater, and terrestrial habitats. In conclusion, snails are scraping feeders because of the structure they possess, called radula. They are herbivorous and scrape off plant materials from various surfaces. These feeders can be found in freshwater, saltwater, and terrestrial habitats.
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Related Questions
All of the following statements describe ammonium thioglycolate relaxers EXCEPT: a) for wavy to curly hair b) for tightly curled or resistant hair c) not as strong or harsh as sodium hydroxide relaxers d) do not require base cream to be applied to the scalp
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The correct answer is d) do not require base cream to be applied to the scalp. Ammonium thioglycolate relaxers are commonly used for wavy to curly hair and tightly curled or resistant hair. They are not as strong or harsh as sodium hydroxide relaxers, but they still require proper application and caution. Unlike some other relaxers, they do require the use of a base cream to protect the scalp during the relaxing process.
Many hair care treatments, including lotions for straightening hair, perms, and hair relaxers, include the active component ammonium thioglycollate. The disulfide bonds in the hair are broken down by the reducing agent, making it simpler to obtain the desired hair texture, whether straight or curly.
The fact that ammonium thioglycollate is gentler on hair than other chemical treatments, lowering the risk of breakage and damage, is one of the key advantages of using it. It is also renowned for its capacity to produce stunning, long-lasting curls or straight hair.
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The statement that is incorrect is 'ammonium thioglycolate relaxers do not require a base cream to be applied on the scalp'. They actually do require a base cream to protect the scalp from potential irritations.
Explanation:All of the statements given describe ammonium thioglycolate relaxers except the one stating that these relaxers do not require a base cream to be applied to the scalp. In fact, they do require a protective base cream to be applied to the scalp before the relaxer is used in order to prevent irritation or burning. This is because ammonium thioglycolate relaxers are meant for wavy to curly hair or tightly curled or resistant hair, and are indeed not as strong or harsh as sodium hydroxide relaxers, but even a less harsh relaxer can cause damage if applied directly to scalp without a protective base.
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what is function of endosperm
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Answer:
its function it to store starch
Answer:
The function of endosperm is to support embryonic growth by supplying nutrients, protecting the embryo and controlling embryo growth by acting as a mechanical barrier during seed development and germination.
_____ is a process in which plants take energy from the sun or other light source and convert it into sugar, which can be converted to other food molecules.
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Plants use a process called photosynthesis to transform the energy either the sun or another light source into sugar, which can then be transformed into other food molecules.
How does photosynthesis work?The process whereby the plants convert carbon dioxide, water, and sunshine into oxygen and sugar-based energy is known as photosynthesis. The sustainability of the vast bulk of life on this planet depends on photosynthesis.
How is photosynthesis so crucial to our survival?On a frequent basis, photosynthesis provides humans with the energy to generate heat, light, & electricity as well as the food they eat. Moreover, as autotrophs contribute to practically all food chains as manufacturers, this mechanism is also crucial for humans.
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A substitution mutation occurred and changed the 5th base in the DNA from a C to a T. Write the sequence of RNA codons that would result from this kind of mutation. **Separate each codon with a space. TACACGCAATTACCAGGGTAGCCATTGATT
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The sequence of RNA codons resulting from the substitution mutation that changed the 5th base in the DNA from a C to a T is AUGUGCGUUAUCCAGGGUAGCCAAUUGA.
In DNA, the base C (cytosine) pairs with G (guanine), while in RNA, the base C pairs with G. However, due to the substitution mutation, the original C is replaced by a T (thymine) in the DNA sequence.
In RNA, thymine is replaced by uracil (U). Therefore, the RNA codons corresponding to the mutated DNA sequence can be derived by replacing each T with U and maintaining the sequence order.
The original DNA sequence TACACGCAATTACCAGGGTAGCCATTGATT would have the corresponding RNA codons AUGUGCGUUAUCCAGGGUAGCCAAUUGA. Each codon consists of three bases and represents a specific amino acid or a start or stop signal in the translation process of protein synthesis.
It's important to note that the given DNA sequence is provided as a single continuous string, and without additional information about the reading frame or specific gene sequence, it is not possible to determine the precise protein sequence or the functional implications of the mutation.
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A given skull has flaring zygomatics, shovel-shaped incisors, round orbits, and moderate nasal aperture width. The ancestry of this individual is likely ________________
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Answer:
Asian or Native American
would this have a positive or negative effect on the body?
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Please Help ASAP !!!!!!!!
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Answer:
what do you need help with
Explanation:
I can help youu
.Classify the labels as relating to cell-mediated immunity or humoral immunity. Some labels may be used more than once.
B cells
Helper T cells
Antigens
Memory B cells
Plasma cells
Antibodies
Kills bacterial invaders
Cytotoxic T cells
Helper T cells
Antigens
Memory T cells
Kills cancer cells
Kills bacterial invaders
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Classifying the labels as relating to cell-mediated immunity or humoral immunity, B cells, Memory B cells, Plasma cells, and Antibodies are related to humoral immunity.
They play a crucial role in the production of antibodies against foreign substances, including antigens. B cells recognize the antigens and differentiate into plasma cells that produce antibodies. Memory B cells are also produced, which help in the rapid production of antibodies during future encounters with the same antigen.
On the other hand, Cytotoxic T cells, Helper T cells, and Memory T cells are related to cell-mediated immunity. Cytotoxic T cells play a crucial role in killing cancer cells and bacterial invaders by releasing cytotoxic substances. Helper T cells recognize the antigens and activate both B cells and T cells, thus playing a critical role in the adaptive immune response. Memory T cells are also produced, which helps in the rapid production of cytotoxic T cells during future encounters with the same antigen.
In summary, while humoral immunity involves the production of antibodies against foreign substances, cell-mediated immunity involves the activation and response of T cells to fight off cancer cells and bacterial invaders. Both these immunity types work together to protect the body against harmful pathogens.
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what physical traits (adaptations do all mammals have in common that relate to living on land? (select all that apply)
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Answer:
Mammals have several traits in common, including the presence of hair or fur, sweat glands, and mammary glands. Some mammals, such as dolphins and whales, evolved to live back in the ocean by adapting from land-dwelling creatures
the following is/are drivers of regional climate a. choices ocean currents large bodies of water b. earth's rotation on its axis c. differential heating of earth's surface
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The following is/are drivers of regional climate c. differential heating of the earth's surface
Climate changeThere are several factors that cause climate change, including The greenhouse gas effect, global warming, and damage to the ozone layer.
Warming of the earth's surface or global warming is the increase in the concentration of carbon dioxide gas (CO2) and other gases in the earth's atmosphere, causing the earth's atmosphere to retain more heat from the sun.
This causes an increase in the earth's temperature. Resulting in an imbalance of ecosystems on earth due to the process of increasing the average temperature of the atmosphere, sea, and land on earth.
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Which theory can best explain why people respond differently to the same stimuli? a. signal detection theory b. frequency theory c. opponent-process theory d. the Young-Helmholtz theory e. bottom-up theory
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Signal detection theory can best explain why people respond differently to the same stimuli.
What is a theory?
Theories are the products of rational, abstract thought about a phenomenon. Observational study or research are two procedures that are frequently linked to contemplative and logical thought. Theories could be based on science, come from a non-scientific field, or be unrelated to any field at all. Depending on the situation, a theory's statements might, for instance, offer generalised explanations of how nature functions. Despite having Greek roots, the word has evolved to include a number of related meanings in modern usage.The term "theory" in science refers to scientific theories, a sort of explanation of nature that is supported by evidence and that follows the scientific method as well as other requirements of modern science.To know more about theory, click the link given below:
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Identify each of the following as an example of a scientific theory, a model, or a hypothesis. - In order to determine how muscles work, a biophysicist imagines that certain muscle proteins are tiny springs and measures how "stretchy" they are. This is a - A medical doctor sees some improvements in cancer patients when they are given a new drug, so the doctor thinks that the new drug may be helpful to treat cancer. This is a - Einstein developed a series of ideas and equations to explain gravity as a curvature in space and time; numerous experiments and observations have given results consistent with his ideas and equations. This is a - The flow of blood through a blood vessel is treated as the flow of a liquid through a long, straight pipe. This is a Why is it important for biologists and people in biology-related fields to learn physics? Select all that are correct. To learn how to solve complex problems To learn how to communicate scientific ideas To learn how to apply fundamental principles with logic and reasoning To learn how to plug numbers into equations and calculate answers To learn how to use math in science and make estimates To learn how to interpret and apply different representations of information To learn how to interpret quantitative measurements
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- In order to determine how muscles work, a biophysicist imagines that certain muscle proteins are tiny springs and measures how "stretchy" they are. This is a model.
- A medical doctor sees some improvements in cancer patients when they are given a new drug, so the doctor thinks that the new drug may be helpful to treat cancer. This is a hypothesis.
- Einstein developed a series of ideas and equations to explain gravity as a curvature in space and time; numerous experiments and observations have given results consistent with his ideas and equations. This is a scientific theory.
- The flow of blood through a blood vessel is treated as the flow of a liquid through a long, straight pipe. This is a model.
It is important for biologists and people in biology-related fields to learn physics because:
- To learn how to solve complex problems
- To learn how to communicate scientific ideas
- To learn how to apply fundamental principles with logic and reasoning
- To learn how to interpret and apply different representations of information
- To learn how to interpret quantitative measurements
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Identify the following situations as a hypothesis, a theory, or a model.
i. In order to determine how muscles work, a biophysicist imagines that certain muscle proteins are tiny springs and measures how "stretchy" they are.
ii. Einstein developed a series of ideas and equations to explain gravity as a curvature in space and time; numerous experiments and observations have given results consistent with his ideas and equations.
iii. A medical doctor sees some improvements in cancer patients when they are given a new drug, so the doctor thinks that the new drug may be helpful to treat cancer.
A) i. - hypothesis; ii. - theory; iii. - model
B) i. - model; ii. - theory; iii. - hypothesis
C) i. - theory; ii. - hypothesis; iii. - model
D) i. - model; ii. - hypothesis; iii. - theory
E) i. - theory; ii. - model; iii. - hypothesis
HELP ME PLEASE
What does “logos” mean?
A. The largest of
B. The study if
C. The inside of
(Please no links just a b or c will work thank you!)
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1. The flu is caused by a virus. Which BEST explains why doctors recommend that people get a flu shot every year?
A flu shot kills the virus if you are already infected.
A flu shot stops the virus from reproducing.
A flu shot can resist bacterial antibiotics.
A flu shot can protect against virus variants.
A flu shot kills the virus if you are already infected.
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Answer:
A flu shot can protect against virus variants.
Explanation: It basically prepares your body in case you get the virus like any other shot.
You've discovered a new type of RNA. What experimental results could you collect that would demonstrate this RNA to be microRNA (miRNA)?
a) Evidence that the subject RNA is capable of binding to mRNA through the pairing of codons and anticodons, but not at the 3' untranslated end b) Evidence that the subject RNA associates with ribosomal proteins, and facilitates the translation of mRNA into proteins
c) Evidence that the subject RNA contains definitive start and stop codons (one of each)
d) Evidence that the subject RNA is derived from a double-stranded precursor molecule resembling a "hairpin," and functions in the regulation of gene expression
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To demonstrate that a newly discovered RNA is a microRNA (miRNA), the most convincing experimental result would be evidence that the subject RNA is derived from a double-stranded precursor molecule resembling a "hairpin," and functions in the regulation of gene expression (option d).
This is because miRNAs are known to be derived from double-stranded precursor molecules that form a hairpin structure. They function in regulating gene expression by binding to target mRNA molecules and inhibiting their translation.
Option a, evidence that the subject RNA is capable of binding to mRNA through the pairing of codons and anticodons, but not at the 3' untranslated end, is not a characteristic of miRNAs. This is more characteristic of transfer RNAs (tRNAs), which are involved in protein synthesis.
Option b, evidence that the subject RNA associates with ribosomal proteins, and facilitates the translation of mRNA into proteins, is also not a characteristic of miRNAs. This is more characteristic of ribosomal RNAs (rRNAs), which are a component of the ribosome and facilitate protein synthesis.
Option c, evidence that the subject RNA contains definitive start and stop codons (one of each), is not a characteristic of miRNAs. Start and stop codons are found in mRNA molecules, and are used to initiate and terminate protein synthesis.
Therefore, the best experimental result to demonstrate that a newly discovered RNA is a miRNA would be evidence that it is derived from a double-stranded precursor molecule resembling a "hairpin," and functions in the regulation of gene expression (option d).
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Punnett squares are grids that show:
A. the phenotypes of an offspring
B. All possible results of a genetic cross
C. Actual results of general crossing (mating)
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The wrasse eats parasites off the parrot fish. The parrot fish protects the wrasse from predators.symbiotic relationship
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Commensalism is a long-term biological interaction in which members of one species gain benefits while those of the other species neither benefit nor are harmed.
8. Write down the definition for the term "cross section” ?
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What makes birds and planes similar and different.?
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Answer:
Airplanes have wings, just like birds. They also have a light skeleton (or framework) to decrease their weight, and they have a streamlined shape to decrease drag. The big difference is that airplanes do not flap their wings.
Which resource is renewable?
O A. Diamonds
O B. Coal
O C. Wind
O D. Aluminum
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Answer:
Wind is a renewable energy source.
Explanation: Overall, using wind to produce energy has fewer effects on the environment than many other energy sources.
How are cells interdependent on each other?
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Answer:
Cells interdependent to form organization in multicellular organism to make tissue, organ, organ system and body.
Explanation:
Along the evolution process, living beings are getting particularly advanced in their complexity. The essential creature to show up was a unicellular form.
In multicellular organisms, cells came that together to make tissues, which collected together to shape organs, further into the organ system, at this level cell depends on one another as the complexity increases with organization level.
pepsin hydrolyzes proteins in the stomach. the ph in the stomach is 2, and the optimum ph for pepsin is 2. what do you think would happen to the activity of pepsin when it reaches the small intestine, where the ph is 8? explain why.
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The activity of pepsin would gradually decreases when it is exposed to higher pH in the small intestine. This is because in higher pH the enzyme pepsin denatures.
What is the role of pepsin in the stomach?The role of Pepsin in the stomach is determined by the fact that it serves to digest proteins found in ingested food. The Gastric chief cells typically secrete pepsin as an inactive zymogen called pepsinogen.
Parietal cells within the stomach lining effectively secrete hydrochloric acid that ultimately decreases the pH of the stomach. A low pH (1.5 to 2) activates pepsin.
It is thought that the role of pepsin is better played in the pH lies between 1.5-2. But when pepsin enters the region of the small intestine, the pH gradually increases and reaches 8. At this, the activity of pepsin is inhibited due to its denaturation.
Therefore, the activity of pepsin would gradually decrease when it is exposed to higher pH in the small intestine. This is because in higher pH the enzyme pepsin denatures.
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what is the answer to this question
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Answer:
(starting with the top left and working anti clockwise)
chloroplast: responsible for photosynthesis
vacuole: stores substances/waste needed for removal
cell membrane: thin semipermeable membrane that controls what enters and exits cell
nucleus: control center of cell
cell wall: provides structure and support for cell
mitochondria: power plant/house of cell
I'm sorry if I'm wrong I couldn't see the words properly.
This transportation process requires the cell to move particles from low concentration to high concentration. active transport facilitated diffusion osmosis diffusion
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Answer:
During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.
Explanation:
This may help you out! :)
active transport...hope this helps!!
Describe how science can have an affect on society
Answers
Answer:
Greeting's
Explanation:
The impact of science on society started to become extremely visible after the industrial Revolution in the 8th century. The most significant impact of science on society is in specific sectors, such as information, communication, physical sciences and energy.
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Under different conditions, stomata can open or close to regulate gas exchange.
carbon dioxide needed
nighttime
daytime
oxygen produced by photosynthesis
hot daytime temperatures
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Answer:
it can open cause when it uses
The most common type of rock by volume in Earth’s crust is
______________:
A. Metamorphic rock
B. Sedimentary rock
C. Divergent rock
D. Igneous rock
E. Convergent rock
Answers
The correct answer is D. Igneous rock.
Igneous rocks are the most common type of rock by volume in Earth's crust. They are formed through the solidification and crystallization of molten magma or lava. Igneous rocks can be classified into two main categories: intrusive igneous rocks and extrusive igneous rocks.
Intrusive igneous rocks form beneath the Earth's surface when molten magma cools and solidifies slowly. Examples of intrusive igneous rocks include granite and diorite. These rocks make up a significant portion of the Earth's crust.
Extrusive igneous rocks, on the other hand, form on the Earth's surface when lava erupts from volcanoes and rapidly cools and solidifies. Examples of extrusive igneous rocks include basalt and rhyolite. While these rocks may cover extensive areas on the Earth's surface, they are less voluminous compared to the intrusive igneous rocks that form beneath the surface.
Metamorphic rocks (A) are formed when existing rocks undergo changes due to high heat, pressure, or chemical processes. Sedimentary rocks (B) are formed from the accumulation and compaction of sediments over time. Divergent rock (C) and convergent rock (E) are not recognized geological terms.
Therefore, the most common type of rock by volume in Earth's crust is igneous rock (D).
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consider a population of cheetahs, inhabiting a protected area in africa. in 2012, there were 112 cheetahs in this population. during that year, 60 of those animals reproduced and 48 new cubs were born. what constitutes the gene pool of the new generation made of those 48 new cubs?
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Answer:
All the alleles of all genes passed from the parents to the offspring.
Explanation:
During the process of reproduction, fertilization, zygote formation etc, the genes of the parents involved are passed down to the 48 new offsprings through the chromosomes.
Thus the gene pool which is defined as the set of all genes in any population, usually of a particular species will constitute all of the alleles of all the genes that were passed from the 60 parents to the 48 new offsprings.
To create yeast that produced vanillin, genetic researchers inserted the genes of fungi, bacteria, and _______ into the yeast genome.A. viruses B. mice C. humans D. pigs E. fruit flies
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To create yeast that produced vanillin, genetic researchers inserted the genes of fungi, bacteria, and humans into the yeast genome.
There are roughly 6,000 genes in yeast overall. About a third of these genes are related to human genes; they have endured relatively little change throughout the one billion years of evolution that separate humans from yeast, indicating that they perform significant fundamental functions in cellular life.
Yeasts are single-celled, eukaryotic microorganisms that are categorized as belonging to the fungal kingdom. There are currently at least 1,500 identified species of yeast, which date back hundreds of millions of years. They are thought to make up 1% of all known fungal species. Yeast is a single-celled, living creature that belongs to the fungal kingdom.
To create yeast that produced vanillin, genetic researchers inserted the genes of fungi, bacteria, and viruses into the yeast genome.
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What is hemoglobin?
A. a protein
B. a carbohydrate
C. a lipid
Answers
A. a protein
hope it is helpful to you
Answer:
A. a protein
Explanation:
Haemoglobin is a globular protein of four subunits.