Answers
Answer:
Some adaptations that dolphin may develop to capture food are:
Since to capture fish its hard ,they may develop a big mouth to capture a fish quickly and easily.By the help of echolocation they can find their food easily as there body may modified as needed.
Related Questions
if you were looking for a plants chloroplasts where would you find them
1. in its fruit
2. in its xylem
3. in its roots
4. in its palisades and spongy cells
Answers
principles/ general, organic biological chemistry.. below
information explain the lab10 work
__________________________________________________________________________________________
Here is star
How much PROTEIN is in my milk? Making cheese is fast, easy and full of science. You will learn about the sources of proteins and their uses in the food industry by using at least one of three differe
Answers
Lab 10 work involves determining protein content in milk using Biuret, Kjeldahl, and Spectrophotometric methods.
Lab 10 work is a lab experiment that focuses on determining protein content in milk using Biuret, Kjeldahl, and Spectrophotometric methods. The three methods used are general principles of protein analysis, while the spectrophotometric method is based on specific chemical or biological reactions. The Biuret and Kjeldahl methods involve measuring the amount of nitrogen present in the milk sample, and the results are used to calculate the amount of protein in the sample. The spectrophotometric method is used to determine the protein concentration by measuring the absorbance of a colored solution with a spectrophotometer. The difference in the absorbance readings between the test sample and the blank is then used to determine the amount of protein in the milk.
In conclusion, lab 10 work is a comprehensive experiment that involves the use of three different methods to determine the protein content in milk. The results obtained from each method are used to calculate the amount of protein in the sample. The experiment helps students to understand the principles of protein analysis and the importance of protein in the food industry.
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measurements of the amount of dna per nucleus were taken on a large number of cells from a growing fungus. the measured dna levels ranged from 3 to 6 picograms (pg) per nucleus. during the entirety of which stage of the cell cycle did the nucleus contain 6 pg of dna?
Answers
Measurements of the amount of DNA per nucleus were taken on a large number of cells from a growing fungus measured DNA levels ranged from 3 to 6 picograms per nucleus.
Slight fungal skin infections can appear like a rash and are very not unusual. as an instance, ringworm is a pore and skin infection because of a fungus—no longer a trojan horse. Fungal infections over-the-counter the counter lungs can be more serious and frequently purpose signs and symptoms that are similar to different ailments, including bacterial pneumonia or tuberculosis.
Antifungal drugs can kill a fungus. Or the counter stops it from multiplying or developing. There are several classes of antifungal medicinal drugs and one-of-a-kind forms of drug treatments. Your healthcare provider will choose over-the-counter first-rate prescription medicine.
For over-the-counter, over-the-counter fungus ought to go away easily, and also you are probably capable of self-dealing with it, says Sundling. “I inform patients to buy over-the-counter cream because it's cheaper and it really works simply as well.
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Florida orange growers often have hundreds of trees in their orchard, similar to those shown here. Florida temperatures can be
mostly tropical or temperate. However, even areas of southern Florida can be exposed to freezing temperatures in the winter.
Suppose that an extreme frost affected an area where the orange orchard is growing. Predict the impacts of this event on the
orange trees. Select ALL that apply.
A)
The trees will undergo mutations that enable them to survive harsher and
colder winters in the future.
B)
This could result in a population bottleneck, where few trees survive,
resulting in lowered genetic diversity
C)
The trees will undergo artificial selection which results in only trees that
are better adapted to freezing temperatures
D)
Trees with the ability to survive the freezing temperatures will reproduce
and create offspring with similar genetic makeup.
E)
The trees in the orchard may all be of similar genetic origin, resulting in a
common tolerance or susceptibility to the freezing weather.
Answers
Answer:B,D,E
Explanation: ur welcome
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The possible impacts include common tolerance or susceptibility, population bottleneck and similar genetic makeup (Options B, D and E).
Common tolerance is due to the selection of trees that are tolerant to these environmental conditions.Population bottleneck is a consequence of the decrease in genetic variability as a consequence of selection.Similar genetic makeup is due to the reduction in genetic variation of the original population.In conclusion, the possible impacts include common tolerance or susceptibility, population bottleneck and similar genetic makeup (Options B, D and E).
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Why are recessive x-linked phenotypes more commonly seen in males?.
Answers
In humans, the X and Y chromosomes determine an individual's sex. Females have two X chromosomes while males have one X and one Y chromosome.
Many genes responsible for various traits are located on the X chromosome. When a male inherits a recessive allele on the X chromosome, he will express the phenotype because he only has one copy of the X chromosome.
In contrast, females have two copies of the X chromosome, so they can be carriers of the recessive allele without expressing the phenotype. However, in rare cases, females can express X-linked recessive traits if they inherit two copies of the recessive allele or if they have a mutation that inactivates one of their X chromosomes.
Therefore, recessive X-linked phenotypes are more commonly seen in males because they only have one X chromosome, and thus, are more likely to express the phenotype.
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1. Research has shown that in general noncoding DNA in tumors becomes ____________________ as the tumor progresses.
hypermethylated
hypomethylated
silenced
acetylated
2. In fusion experiments, when tumor and non-tumor cells were fused the resulting cells lost the ability to form tumors. This suggests…
Cancer is a dominant phenotype while the wild-type phenotype is recessive.
Cancer is more reliant on epigenetic mechanisms than genetic ones.
The wild-type phenotype is dominant while cancer is a recessive phenotype.
cell fusion disrupts too many genetic mechanisms to be an effective experiment.
Answers
1. Research has shown that in general noncoding DNA in tumors becomes hypermethylated as the tumor progresses.
Hypermethylation refers to the addition of methyl groups to the DNA molecule, particularly in regions that do not code for genes (noncoding DNA). This abnormal increase in DNA methylation is commonly observed in cancer cells and is associated with the silencing of tumor suppressor genes and other regulatory elements. Hypermethylation of noncoding DNA is believed to contribute to the development and progression of tumors.
2. In fusion experiments, when tumor and non-tumor cells were fused, the resulting cells lost the ability to form tumors. This suggests that cancer is more reliant on epigenetic mechanisms than genetic ones.
Cell fusion experiments involve the fusion of tumor cells with non-tumor cells, combining their genetic material and cellular components. The loss of tumorigenicity (ability to form tumors) in the fused cells indicates that the non-tumor cells contribute factors or mechanisms that suppress or counteract the oncogenic properties of the tumor cells. This observation suggests that cancer cells may rely more on epigenetic modifications (changes in gene expression patterns without alterations in the underlying DNA sequence) rather than genetic mutations alone for their transformed phenotype.
The experiments do not directly provide information about the dominance or recessiveness of cancer or the wild-type phenotype, or about the disruption of genetic mechanisms. Instead, they suggest a role for epigenetic factors in tumor suppression and imply that the fusion of tumor and non-tumor cells leads to the restoration of normal cellular regulation and inhibition of tumorigenicity.
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How would the carbon cycle be affected if no bacteria were present?
Answers
Answer:
Without decomposers, the carbon would remain locked in dead organisms and could only be released through combustion. However, humans are having a huge impact on the carbon cycle by the combustion of buried fossil fuels, which is increasing carbon in the atmosphere rapidly.
Which contains alleles A and B in the same genotype what is this phenomenon called
Answers
Answer:
Codominance, in genetics, phenomenon in which two alleles (different versions of the same gene) are expressed to an equal degree within an organism. As a result, traits associated with each allele are displayed simultaneously. An example of codominance is seen in the MN blood group system of humans.
Explanation:
In Mendel's F2 generation of the purple and white flower crossing, the dominant to recessive ratio was
1:3:1
3:1
1:1
9:7
9:3:3:1
Answers
In Mendel's F2 generation of the purple and white flower crossing, the dominant to recessive ratio was b. 3:1. therefore, option b. 3:1 is correct.
This means that out of every four plants in the F2 generation, three had the dominant trait (purple flowers) and one had the recessive trait (white flowers).
This ratio is the result of Mendel's law of segregation, which states that the two alleles of a gene (in this case, the P and p alleles for flower color) separate from each other during the formation of gametes (pollen and eggs) so that each gamete receives only one allele.
The 3:1 ratio is expected when both parents are heterozygous for the trait, meaning they each carry one dominant allele and one recessive allele.
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irf4 transcription factor- dependent cd11b dendritic cells in human and mouse control mucosal il-17 cytokine responses.
Answers
The correct answer it will aid in the transcription of mouse in vivo findings to advance DC-based clinical therapies.
Although mouse and human dendritic cells (DCs) are made up of functionally distinct subsets, precise interspecies correlation is currently lacking. In this study, we discovered that murine lung and gut lamina propria CD11b+ DC populations were divided into two subsets: FLT3- and IRF4-dependent CD24+CD64 DCs and contaminating CSF-1R-dependent CD24CD64+ macrophages. CD24+CD11b+ DC loss inhibited CD4+ T cell-mediated interleukin-17 (IL-17) production in the steady state and after Aspergillus fumigatus challenge. Human CD1c+ DCs, which are the equivalent of murine CD24+CD11b+ DCs, expressed IRF4, secreted IL-23, and induced T helper 17 cell responses. Our findings revealed heterogeneity in the mouse CD11b+ DC compartment and identified IRF4-expressing DCs in mucosal tissues that are specialised in instructing IL-17 responses in both mice and humans.
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researchers have determined that host cells possess several different surface proteins that can serve as virus receptors for zikv. if you were to repeat the experiment described in the figure below using zikv instead of hiv, how would you expect the results to be different? a model of an experiment that answered the question whether cd4 is the protein hiv uses to enter a host t cell. the hypothesis is that cd4 is the membrane protein hiv uses to enter cells. the null hypothesis is that cd4 is not the membrane protein hiv uses to enter cells. in the first step of the experiment, 160 identical samples of helper t cells are taken from a large population of t cells growing in culture. in the second step, antibodies to cd4 and to protein other than cd4 were added to each sample of cells. each antibody will block a specific membrane protein. in the third step, a constant number of hiv virions were added to all samples. in the fourth step, cells infected by hiv were identified using microscopy. many cells with other proteins are infected, and no cells with cd4 are infected. hiv uses cd4 as a receptor to enter helper t cells. thus, only cells with free, unbound cd4 on their surface can be infected by hiv.
Answers
If researchers were to repeat the experiment using zikv instead of HIV, they would need to identify the surface proteins that serve as receptors for zikv in host cells.
Once those proteins are identified, they could perform a similar experiment as described in the model experiment. The hypothesis would be that the identified surface protein(s) are the ones that zikv uses to enter host cells, while the null hypothesis would be that the identified surface protein(s) are not the ones that zikv uses to enter host cells. They would then take identical samples of host cells and add antibodies to block the identified surface protein(s) and any other surface proteins that may be potential receptors for zikv. A constant number of zikv virions would be added to all samples, and then infected cells would be identified using microscopy. If the identified surface protein(s) is a receptor for zikv, then only cells without the blocked surface protein(s) would be infected with zikv, while cells with the blocked surface protein(s) would not be infected. The results would be different from the HIV experiment, where only cells with free, unbound CD4 were infected by HIV.
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Why are proteins so small but so important to living organisms .
Answers
Explanation: because carry out all the functions in the human body necessary for living. Proteins make up hormones that are required for living. Insulin - responsible for stabilising blood sugar. Haemoglobin - responsible for carrying oxygen around the body. Melatonin - responsible for helping us get to sleep. Adrenalin - responsible for the flight-fight-freeze response. There are many more but here are just a few.
Answer:
Protein is a nutrient your body needs to grow, as well as to support and maintain your life. ... For example, proteins help cells develop and communicate, act as enzymes and hormones, conduct the transport of nutrients throughout your bloodstream and repair damaged tissue. In other words, you can't live without protein.
Explanation:
Why do cells age and die?
No one knows for sure
Radiation
Protein changes
Changes in molecular shape
Answers
The cell age and die because of changes in proteins. The correct option is C.
What are cells?
Cells are living units that together form an organism. They contain cell organelles, and the cell organelle performs the carious function of the body. Cells are made up of macromolecules, like protein, lipids, and carbs.
There are various types of cells that perform different functions of the body. Old cells die and new cells are made from the old cells. The old cells die because of a change in the protein structure of protein denaturation.
Thus, the correct option is C. Protein changes.
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What do sediments increase pollution in an aquifer?
Answers
Answer:
Explanation:
Contamination also can occur from naturally occurring mineral and metallic deposits in rock and soil. For many years, people believed that the soil and sediment layers deposited above an aquifer acted as a natural filter that kept many unnatural pollutants from the surface from infiltrating down to groundwater.
In some individuals, particularly those of Scandinavian extraction, this worm can case a megaloblastic anemia:
Answers
The worm that can cause megaloblastic anemia in some individuals, particularly those of Scandinavian extraction, is Diphyllobothrium latum.
Diphyllobothrium latum is a type of tapeworm that can grow up to 10 meters long and live in the intestines of humans. It is found in freshwater fish, such as salmon, trout, and pike. Ingesting raw or undercooked infected fish can cause Diphyllobothrium latum infection in humans.
The worms consume the host's vitamin B12 and can lead to megaloblastic anemia if left untreated. In some individuals, particularly those of Scandinavian extraction, the risk of megaloblastic anemia is higher due to the Scandinavian's consumption of raw or undercooked fish. The treatment of Diphyllobothrium latum infection involves a course of medication to kill the parasite and vitamin B12 supplementation to restore the host's vitamin levels.
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is an american anti-western film from the 2000s that draws its influences from the tradition of sergio leone's spaghetti westerns in the 1960s.
Answers
Yes, there is an American anti-Western film from the 2000s that draws influences from Sergio Leone's spaghetti westerns of the 1960s. The film you are referring to is "The Assassination of Jesse James by the Coward Robert Ford" (2007), directed by Andrew Dominik.
"The Assassination of Jesse James by the Coward Robert Ford" is known for its deliberate pacing, atmospheric cinematography, and exploration of complex characters. It subverts traditional Western tropes and presents a more introspective and morally ambiguous portrayal of the Old West. The film delves into the psychology of its characters and presents a critical examination of celebrity culture and mythmaking.
Drawing inspiration from Sergio Leone's spaghetti westerns, particularly works like "The Good, the Bad and the Ugly" (1966), "The Assassination of Jesse James" incorporates elements such as wide landscapes, stylized visuals, and moments of intense tension. It also explores themes of betrayal, idolization, and the blurred lines between heroism and villainy, which were characteristic of Leone's films.
By infusing the anti-hero narrative and contemplative approach seen in spaghetti westerns into an American context, "The Assassination of Jesse James by the Coward Robert Ford" stands out as a notable example of an American film drawing influence from the tradition of Sergio Leone's iconic Westerns.
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1. How many stomachs does a crayfish have? What are they called?
Answers
Answer:
It is called "Gastric Mill" They have 3 stomachs
Explanation:
The teeth are part of a system called the “gastric mill.” Through rhythmic movements of these large teeth, of which there are three, their stomachs can actually crush food as a prelude to further digestion.
The trp and lac operons are regulated in various ways. how do bacteria regulate transcription of these operons?
Answers
Operon is not transcribed:
-lac operon: lactose absent
-trp operon: tryptophan present
Positive control transcription of Operon does not speed it up:
Lactose and glucose are present, -lac operon
Tryptophan is lacking in the -trp operon.
Operon is transcribed quickly through positive control:
-lac operon: lactose present, glucose not
Only negative control is used to regulate the trp operon. The operon genes are not transcribed when tryptophan is present.
Both positive control and negative control are used to control the lac operon.
Negative control: —Transcription is inhibited when lactose is missing due to the activity of the repressor protein.
—The repressor protein is deactivated and transcription is triggered when lactose is present.
Positive control: —In the absence of glucose, another regulatory protein (CAP) attaches to the lac operon's promoter, speeding up transcription in the presence of lactose.
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Can someone help me in this question?
Answers
Which blow over long distances?
Answers
Answer:
The wind
Explanation:
The reason the answer is wind is bc The word "Blow" is the past tense of blew.
meaning The third-person singular indicative form of blow is blows. The present participle of blow is blowing. The past participle of blow is blown.
Hope this helps
Guys this is not the real answer :)
the real answer is trade breezes/wind~~Wdfads~~~
What are three ways a plant's organ systems work together?
A The shoot system delivers food to the root system.
B. The root system delivers materials from the soil to the shoot
system
The ground tissue of the root system protects the vascular tissue
in roots
D. The ground tissue of the root system stores food for later use by
leaves
Answers
Answer: A, B, D
Explanation: credit to the comments on the other. I also did the test
The three ways through which a plant's organ systems work together are as follows:
The shoot system delivers food to the root system.The root system delivers materials from the soil to the shoot system. The ground tissue of the root system stores food for later use by leaves.Thus, the correct options are A, B, and D.
How do plants deliver water and nutrients to other parts?Plants deliver water and other nutrients to other parts with the help of vascular tissues like xylem and phloem.
Xylem transports water, nutrients, and other minerals from the soil to all parts.
Phloem mediates the migration of foods from the leaves to the rest of the plants.
The shoot system delivers food to the root system via the vascular tissue phloem. The root system delivers materials from the soil to the shoot system via the vascular tissue Xylem.
The ground tissue of the vascular plant is responsible for storing the carbohydrates constructed by the plants and utilized by the leaves when required.
Therefore, the correct options are A, B, and D.
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What is biology??And what does it came from??
Answers
Answer:
BIOLOGY IS THE STUDY OF LIFE
Explanation:
Answer:
Biology is studying about life and the human body. The term biology in its modern sense appears to have been introduced independently by Thomas Beddoes (in 1799)
Hope this helps!
Article of plastic in the ocean.
Why or how does the article occur ?
Also provide a brief personal reflection on the article that you have given me
Answers
Earth's last sink for plastic waste, the oceans, receive the majority of it from the land. Major rivers operate as conveyor belts, gathering up debris as they flow downstream and carrying it to the ocean. Many pieces of plastic waste that are floating at sea stay in coastal waters.
Why is plastic in the ocean happening?Plastic garbage is transported through drains, streams, and rivers by wind and rain. Ocean access is via drains! Another significant factor is careless and incorrect garbage disposal; unlawful rubbish dumping significantly contributes to the plastic pollution of our oceans.Being such a persistent contaminant, plastic waste is particularly harmful. Decomposition of plastic products might take hundreds of years. Both people and animals are at risk from this garbage. In the debris, fish become entangled and hurt, and some animals mistakenly eat things like plastic bags thinking they're food.To learn more about : Plastic pollution
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The prostate, seminal glands, and bulbo-urethral glands produce __________, the liquid medium in which sperm leaves the body.
Answers
The prostate, seminal glands, and bulbo-urethral glands produce Seminal fluid, the liquid medium in which sperm leaves the body.
What is Seminal fluid?The seminal vesicles and prostate gland make a whitish fluid called seminal fluid, which combines with sperm to form semen when a male is sexually stimulated.Fluid from seminal cysts is thick. It contains fructose, citric acid, proteins, potassium, inorganic phosphorus, and prostaglandins. When the fluid incorporates with sperm in the ejaculatory duct, the fructose evolves the direct source of energy for the sperm outside a man's body.semen, also named seminal fluid, is fluid that is ejected from the male reproductive tract and includes sperm cells, which are competent for fertilizing the female's eggs. Semen also prevents liquids that connect to form seminal plasma, which helps keep the sperm cells possible.To learn more about Seminal fluid, refer to:
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Which neural region would influence the biological clock if it were damaged?
a. substantia nigra.
b. lateral hypothalamus.
c. caudate nucleus.
d. suprachiasmatic nucleus.
Answers
Answer:
D. suprachiasmatic nucleus
In science class, lab partners are designing an experiment that shows the important steps of the water cycle. For their experimental design, which of the
following procedures could best be used to demonstrate the difference between condensation and evaporation?
O A. To show condensation, the lab partners must increase the temperature within the cycle; to show evaporation, they must decrease the temperature,
OB. To show condensation, the lab partners must decrease the temperature within the cycle; to show evaporation, they must increase the temperature,
c. To show condensation, the lab partners must maintain a constant temperature within the cycle; to show evaporation, they must increase the
temperature
D. To show condensation, the lab partners must maintain a constant temperature within the cycle; to show evaporation, they must decrease the
temperature
Answers
Answer:
To show condensation, the lab partners must decrease the temperature within the cycle; to show evaporation, they must increase the temperature.
Answer: A :) hope this helps!
Which of the following techniques is used to intentionally introduce changes into the DNA sequence to analyze gene function and gene products?
DNA sequencing
DNA microarray
Mutagenesis
DNA probes
Restriction enzyme analysis
Gene cloning
Answers
The technique used to intentionally introduce changes into the DNA sequence to analyze gene function and gene products is Mutagenesis.
The changes introduced by mutagenesis can be used to analyze the function of specific genes and gene products. For example, mutations that disrupt the function of a particular gene can be introduced to determine the role of that gene in a biological process.
Alternatively, mutations can be introduced to generate proteins with altered functions or properties, allowing the study of protein structure and function.
Mutagenesis has been widely used in the study of model organisms, such as the fruit fly Drosophila melanogaster and the nematode Caenorhabditis elegans, to gain insights into the genetic basis of development and disease.
It has also been used to develop new crop varieties with desirable traits, such as disease resistance or improved yield.
In conclusion, mutagenesis is a powerful technique used in molecular biology to intentionally introduce changes into the DNA sequence of an organism's genome.
This technique is used to analyze gene function and gene products and has broad applications in fields such as genetics, biotechnology, and agriculture.
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What factor that influences diffusion is responsible for the differential flow of starch and iodine through the bag?
Answers
The size of the molecules is a factor that affects diffusion and is in charge of the varying rates at which starch and iodine move through the bag. Because starch molecules are significantly bigger than iodine molecules, they may pass through the bag more slowly.
This is due to the fact that bigger molecules have more difficulty than smaller ones passing through the bag's perforations. A differential flow results from the tiny iodine molecules moving more swiftly than the bigger starch molecules.
The concentration gradient, or difference in concentration between the two sides of the bag, has an impact on the rate of diffusion as well. Iodine molecules are distributed evenly throughout the bag, whereas starch molecules are concentrated on one side of the bag.
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Cumulonimbus clouds are also known as thunderstorm clouds.
Answers
More commonly known as thunderclouds, cumulonimbus is the only cloud type that can produce hail, thunder and lightning. The base of the cloud is often flat, with a very dark wall-like feature hanging underneath, and may only lie a few hundred feet above the Earth's surface.
Answer:
Cumulonimbus or nimbus clouds are the only clouds that produce thunderstorms with hail, lightning, and thunder. They form in warm weather, warm air creates clouds that are 20,000 feet or more in size. Cold and warm air collides, causing rain, thunder, lightning, hail, and sometimes severe storms like tornados.
The diagram below illustrates changes over time in a population of foxes in the
wild.
What process is illustrated in the diagram?
extinction
overproduction
natural selection
artificial selection
