10. In a cruel display of osmosis, a slug will perish if someone were to sprinkle salt all over its body. How does covering a slug in salt cause its body to shut down?
Answers
Covering a slug in salt causes its body to shut down through a process called osmosis.
What is meant by osmosis?Movement of water molecules from a solution with high concentration of water molecules to a solution with lower concentration of water molecules, through a cell's partially permeable membrane is called osmosis.
Covering a slug in salt causes its body to shut down through a process called osmosis. In the case of a slug covered in salt, the salt creates highly concentrated solution around slug's body, so water from slug's body moves out to the area of high concentration of salt.
As water moves out of slug's body, it causes slug to dehydrate and lose essential fluids. This dehydration can cause slug's cells to shrink and eventually die, leading to the death of slug.
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Related Questions
1. What is the approximate dewpoint temperature if the dry bulb temperature is 10° C and the wet-bulb temperature is 8 °C? [Refer to the Earth Science Reference Tables.]
Answers
If the dry bulb temperature is 10°C and the wet bulb temperature is 8°C with a relative humidity of 100%, the approximate dew point temperature would be 8°C.
What is the ratio of the wet bulb temperature to the dew point?Wet bulb temperature is the temperature we obtain from a moistened thermometer bulb that is exposed to air flow, as opposed to dewpoint temperature, which is the temperature to which we need cool the air to saturate the air with water vapour.
As an alternative, we can apply the following equation:
Dew point temperature = ((243.04*(ln(RH/100)+((17.625T)/(243.04+T))))/(17.625-ln(RH/100)-((17.625T)/(243.04+T))))
Dew point temperature = (wet bulb temperature - ((100 - relative humidity)/5))
Using this formula, if the dry bulb temperature is 10°C and the wet-bulb temperature is 8°C
If we assume a relative humidity of 100%, the dew point temperature would be:
Dew point temperature = (8°C - ((100-100)/5))
= 8°C
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You are to draw a cell as it goes through meiosis on a piece of paper with
6 chromosomes. You will have a series of drawings, one for each stage.
Label the spindle fibers (SF), nuclear envelop (NE), chromosomes (CHR's)
and centrioles. Use color like we did in class, at least 2 colors
Labeling is 10 points
original cell correct 5 points
each phase correct 5 points (total)
correct number of cell and chromosomes in daughter cells 5 pts
totalling 25 points
Below, answer true
True
False
Answers
snake,grass hopper,grab,spider from the above organisms formulate a dichotomous key
Answers
Does it have legs? (Yes/No)
Yes: Go to 2
No: Go to 3
Does it have more than 4 legs? (Yes/No)
Yes: Grasshopper
No: Snake
Does it have eight legs? (Yes/No)
Yes: Spider
No: Grab
To formulate a dichotomous key using the given organisms (snake, grasshopper, crab, spider), we can follow this structure:
Does the organism have legs?
Yes: Go to question 2.
No: It's a snake.
Does the organism have more than four legs?
Yes: Go to question 3.
No: It's a grasshopper.
Does the organism have a hard exoskeleton?
Yes: It's a crab.
No: It's a spider.
This dichotomous key helps differentiate between the organisms based on their characteristics. By answering the questions sequentially, one can identify the correct organism.
It starts by determining if the organism has legs or not, leading to the snake if it lacks legs. If the organism has legs, the key proceeds to assess the number of legs, identifying the grasshopper if it has four or fewer legs.
Finally, the presence or absence of a hard exoskeleton distinguishes between the crab and spider, with a hard exoskeleton indicating a crab and its absence indicating a spider.
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A type of energy storage molecule made of many glucose molecules connected together is called: ________
Answers
When glucose molecules are bonded together, they form the type of energy storage molecule termed Glycogen.
Animals, fungi, and bacteria all use the multibranched polysaccharide of glucose known as glycogen to store energy. This glycogen is decomposed into fragments to release glucose into the bloodstream when the body requires immediate energy or cannot obtain the necessary glucose from the diet.
A complex carbohydrate that the body may quickly convert into energy is called glycogen. In the human body, glycogen is kept in the liver and skeletal muscles. In adipose tissue, additional glucose can be metabolized to fat.
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How Clark Developed Seizures
The following list is not in the correct order. The first three events are numbered correctly. Drag and drop the
remaining events in the order that led to Clark's seizures.
picture above for the order.
Answers
Answer:
4. Low blood sodium concentration
5. Net movement of free water into the matrix
6. Increased matrix pressure
7. Abnormal neuron firing rate
8. Seizures
Explanation:
Seizures are defined as the common complication of drug intoxication.
As per the clinical observations for Clark , normal blood and matrix sodium concentration lose sodium ions due to diarrhea. As given too much water causes sodium levels to decrease. Due to lower sodium concentration, the free water move into the matrix and increased matrix pressure. This pressure causes the abnormal neuron firing rate to increase which causes seizures.
Hence, the correct order is:
4. Low blood sodium concentration
5. Net movement of free water into the matrix
6. Increased matrix pressure
7. Abnormal neuron firing rate
8. Seizures
in part b, which (if any) blood types would prove that a particular male was the father?
Answers
In part b, blood type O would prove that a particular male was the father.
To determine if a particular male could be the father, you need to consider the possible combinations of blood type alleles for the child and parents.
If the child has blood type O, their genotype would be OO.
This means that each parent must have contributed an O allele.
So, if the mother has a blood type A, her genotype would be AO. Therefore, the father must have a genotype of BO or OO to produce a child with blood type O.
In this scenario, if a particular male has blood type O, he could be the father.
Summary: If a child has blood type O, a male with blood type O could be proven as the father, given the right combination of blood type alleles.
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Which is not a type of crystal system?
A. hexagonal
B. monoclinic
C. orthorhombic
D. triangular
Answers
Answer:
D. the answer is triangular
What is the diaphragm and what is its role in respiration?
Answers
Diaphragm is the major muscle of inspiration and expiration.
It is located below the lungs which has a dome shape.
At the time of Inspiration it contracts which increases pulmonary volume and reduces the intrapulmonary pressure to less than the atmospheric pressure so that air moves into the lungs.
At the time of expiration , diaphragm relaxes which reduces the pulmonary volume increasing the intrapulmonary pressure more than the atmospheric pressure which leads to expulsion of air from the lungs.
Please answer the question in the picture
a. Interpret the pattern of bacteria (white dots) in the different color regions
shown above. 1 mark
b. State a hypothesis that might have been proposed for the experiment with
the algae. Explain how the results obtained supported or refuted this
hypothesis. 2 mark
Answers
a) Pattern of bacteria in the different color regions: The highest concentration of bacteria is observed in colors violet-blue and yellow-orange. A low concentration of bacteria is observed in green color. No bacteria is observed in orange-red color.
b) Hypothesis: Algae exposed to wavelengths between 500 and 600 nm will express the greatest photosynthetic rate.
What is a hypothesis?When following the scientific methodology, researchers must formulate a hypothesis.
A hypothesis is a scientific conjecture, not verified, that requires corroboration. It is a possibility, not a fact. It is a claim of how it works a relationship between two or more variables.
The researcher hypothesizes to predict what is going on or what is expected to occur.
A hypothesis
must be clear and comprehensive.must express the direct relationship between the involved variables.must be objective.must be tested and falsifiable
In the exposed example, the involved variables might be, for instance, wavelength and photosynthetic rate.
Wavelength is the independent variable and varies between 300 and 700 nm approximately. Wavelength is represented by lights of different colors.
Photosynthetic rate is the dependent variable. It responds to changes in the independent variable, meaning the photosynthetic rate will vary according to the wavelength to which the algae is exposed.
Hypothesis
Algae exposed to wavelengths between 500 and 600 nm will express the greatest photosynthetic rate.
We know that during photosynthesis, oxygen is released. The more oxygen is released into the environment, the greater the photosynthetic rate is.
So, a simple way to measure oxygen concentration (and hence, the photosynthetic rate) is to observe the pattern distribution of oxygen-seeking bacteria when exposed to algae under different light conditions.
These bacteria will be more concentrated in areas where there is more available oxygen. So bacteria concentration will be an indicator of oxygen release. And the amount of oxygen is an indicator of the photosynthetic rate.
In the diagram, we can see that,
the greatest concentration of bacteria occurs in wavelengths around 400 nm and 675 nm, approximately. These are blue-violet colors, and yellow-orange colors, respectively.
a low concentration of bacteria occurs in wavelengths between 500 and 600 nm. This is green in color.
no bacteria are present in wavelengths greater than 700 nm. This is red in color.
This pattern of bacteria in the different color regions suggests that
the algae photosynthetic rate is greater when exposed to wavelengths around 400 nm and 675 nm.
Under these light conditions, the algae photosynthesize more, and more oxygen is released, so more bacteria are attracted.
the algae photosynthetic rate is lower when exposed to wavelengths 500 and 600 nm.
Under these light conditions, the algae photosynthesize less and less oxygen is released, so fewer bacteria are attracted.
the algae photosynthetic rate is null when exposed to wavelengths over 700 nm.
Under these light conditions, the algae do not photosynthesize, no oxygen is released, and no bacteria are attracted.
Note: Please notice that other variables might be considered when analyzing this example.
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If there is gene flow between two adjacent populations of the same species, then the two populations will
Answers
If there is gene flow between two adjacent populations of the same species, then the two populations will have similar gene pools.
What is gene flow?Gene flow is the movement of genes within a population or between two or more populations of organisms as a result of mating that occurs between the species.
Gene flow between two populations ensures similarity between the gene pool of the populations.
Therefore, if there is gene flow between two adjacent populations of the same species, then the two populations will have similar gene pools.
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In SDS-PAGE, protein sample is first treated with detergent sodium dodecyl sulfate(SDS), in order to
a. make the protein become negatively charged.
b. make the protein become positively charged.
c. renature the protein
d. adjust the pH of protein
Answers
When a protein sample is treated with SDS in SDS-PAGE, the SDS molecules bind to the protein and coat it with a negatively charged layer (Option A).
What is SDS-PAGE?Sodium dodecyl-sulfate polyacrylamide gel electrophoresis (SDS-PAGE) is commonly used to obtain high resolution separation of complex mixtures of proteins. The method initially denatures the proteins that will undergo electrophoresis. In SDS-PAGE, a protein sample is first treated with detergent sodium dodecyl sulfate (SDS) in order to make the protein become negatively charged. This causes the protein to become uniformly negatively charged, which allows it to be separated based on its size and shape during electrophoresis.
Thus, the correct option is A.
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Morels are commonly found growing on damp forest floors.
True
False
Answers
Answer:
True
Explanation:
They grow best in cool, damp areas, like a forest floor.
Answer:
true
Explanation:
damp forest floors
1. A possible explanation for a set of
observations that must be tested is called a
A. theory.
B. law.
C. fact.
D. hypothesis
2 A well-tested explanation for a broad range of natural events is called a
A. Theory
B. Law
C. Fact
D. Hypothesis
Answers
1) D. hypotheses
2) A. Theory
1. A possible explanation for a set of
observations that must be tested is called a
A. theory.
B. law.
C. fact.
D. hypothesis✅
2. A well-tested explanation for a broad range of natural events is called a
A. Theory✅
B. Law
C. Fact
D. Hypothesis
you take a different mutant mouse who also has a low blood glucose in response to stress. to help find out, you remove their pituitary gland and transplant a normal pituitary gland into this mouse. this time, the mouse's blood glucose goes back to normal. given this data, this mouse might have a mutation ina) crhb) the crh receptorc) acthd) either the crh receptor or acth
Answers
Mutation in ACTH is the reason for mouse return of blood glucose to normal when normal pituitary gland was transplanted. The correct option to this question is C.
Cortisol and androgens are then released by the adrenal glands, specifically the adrenal cortex. Your hypothalamus receives the signal to lower CRH levels from the ensuing rise in cortisol, closing the feedback loop.
Administration of cortisone has intensified glycosuria and raised needs for insulin in patients with diabetes mellitus, while administration of ACTH has been proven to cause a significant rise in blood sugar.
The pituitary produces a hormone called adrenocorticotropic hormone (ACTH). Cortisol generation and release from the cortex (outside part) of the adrenal gland are its primary functions.
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2. Evaluate Claims A student claims that the four types of macromolecules make up all of
important compounds of the human body. Provide evidence and reasoning to support or
refute this claim.
Answers
Answer:
Yes, our body is made up of four Macromolecules.
Explanation:
Yes, the claim of the student is right that Macromolecules such as carbohydrates, lipids, proteins, and nucleic acids makeup the human body because all the cells are made up of carbohydrates, lipids, proteins, and nucleic acids. We know that our body is made up of cells so we can say that our body is made up of four Macromolecules. For example, our muscles are made up of protein, the fats present in our body are the lipids, carbohydrates are stored in the form of glycogen In liver and nucleic acids are present in the form of DNA and RNA.
The four main macromolecules in the body are; carbohydrates, proteins, nucleic acids and lipids.
Macormolecules are those large biological molecules that play important roles in the body. The human body is filled with these macromolecules and they perform functions such as mechanical support, protection of organs, insulation etc.
There four main types of macromolecules in the body;
carbohydrates. lipids. proteins. nucleic acids.Theses macromolcules are the basis of all the complex molecules found in the human body. For instance, steroids are composed of lipids and they play very important roles in hormones in the body.
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1.(02.04 LC)
What are the main differences between plant and animal cells? (4 points)
Answers
Answer:
animal cells and plant cells share the common components of a nucleus,cytoplasm,mitochondria,and a cell membrane.
Answer:
Explanation:
Plant cells are more rigid due to the cell wall.
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
Answers
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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HELPPPPPP QUICKKKKKK!!!!!!
which trait is not a genetic trait?
a. hazel eyes
b. long hair
c. detached earlobes
d. freckled skin
Answers
Answer:
I think the answer is either b. or d.
Explanation:
I remember this question from other quizzes I'm just not sure which one it is.
Sorry If this didn't help..
Answer:
Long Hair
Explanation:
You choose your own hair length, not genes.
How do silent missense and nonsense mutations differ?
Answers
When a mutation occurs in a protein coding region it may have several effects. Nucleotide substitutions may lead to no change in the protein sequence (known as silent mutations), change the amino acid sequence (known as missense mutations), or create a stop codon (known as a nonsense mutation).
A silent mutation is unnoticeable, whereas a nonsense mutation will produce a protein which is much different than the original. This is because a nonsense mutation introduces a codon which is completely different than the one before, possibly stopping the protein synthesis short.
A change in a single amino acid that results from a point mutation in the DNA sequence. Nonsense codons (nonsense mutations): The conversion of a codon from one that encodes an amino acid to one that acts as a stop codon due to a point mutation in the DNA sequence.
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The movement of waves in the middle of the ocean is normally
static
vertical
circular
horizontal
Answers
Answer:
Vertical
Explanation:
Since we are talking about movement, and the ocean can't be static due to many things happening around and inside it can't be static.
It is not circular and not horizontal. It is vertical. The movement of waves is vertical and this is because waves don't move up and down but vertically since wind is the usual maker of waves in the middle of the ocean.
A key part of the Watson-Crick model came when Watson realized
that adenine could form hydrogen bonds with thymine and guanine
could form hydrogen bonds with cytosine. This explains why A=T
and G C in Chargaff's rules. Also, these two hydrogen-bonded
nucleotide pairs had the exact same width, so they could form the
rungs of the DNA ladder.
The fact that these pairs could match up only in this way meant that
the sequence of bases in one strand could determine the sequence
of bases in a second strand created from the first. The second strand
is said to be complementary to the first strand. Individual bases are
paired so that the identity of any base determines the identity of the
base paired with it; that is, the complementary base.
This table lists the base abbreviations for bases in a sample of single-
stranded DNA. Fill in the second column with the base abbreviations
that are complementary to the given bases.
I
Answers
Answer:
A–T
T–A
T–A
C–G
A–T
G–C
G–C
C–G
T–A
A–T
Explanation:
A always pairs up with T
C always pairs up with G
A - TT - AT - AC - GA - TG - CG-CC - GT - AA - TA usually pairs up with TC usually pairs up with GThese are bases of amino acids called nucleotides sequences. And this helps in the bond of several base pairs to their nucleotide sequence.What is the Watson-Crick model?
In “A Structure of Deoxyribose Nucleic Acid,” Watson and Crick defined DNA as a double helix that contained long, helical strands wound together. In their model, every DNA strand contained personal devices referred to as bases, and the bases alongside one DNA strand matched the bases alongside the opposite DNA strand.
Thus it is clear that the above answer is well explained.
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Which of the following types of mutations does not belong with the others?
Answers
Answer:
options please
Explanation:
Theres nothing to pick from
When bacteria infect an animal, the number of bacteria in the body increases in an exponential fashion (graph A). After infection by a virulent animal virus with a lytic replicative cycle, there is no evidence of infection for a while. Then the number of viruses rises suddenly and subsequently increases in a series of steps (graph B). Explain the difference in the curves
Answers
Graph A demonstrates the exponential growth of bacteria in the animal and graph B shows the rise of a virus in the animal.
What is exponential growth?Exponential growth is a type of growth that occurs when the rate of increase is proportionate to the current size or value. This means that the larger the size or value of something increases, the faster the rate of growth. For example, if an organism is growing exponentially, the amount it grows each day will be proportional to its current size.
Graph A demonstrates the exponential growth of bacteria in the animal. This is because bacteria reproduce quickly and exponentially, meaning that each new generation of bacteria can produce many more bacteria than the last one.
Graph B shows the rise of a virus in the animal. This is because viruses do not reproduce on their own and need to infect a host cell in order to replicate. This means that the virus population will not increase until it has had the chance to infect enough host cells to produce a large enough population. Once the virus has infected enough cells, it can then reproduce quickly, leading to a sudden increase in the virus population.
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How many bones we have
Answers
Answer: the adult human body has 206 bones in total
When Anna eats an apple, the sugars in that apple are broken down into the substance called glucose. Glucose is then burned in her body for energy. One of the body parts that needs this energy is the heart, which beats due to electrical impulses. A byproduct of this glucose breakdown is the heat that warms her body and is later released.
Which identifies the energy transformations that take place in Anna’s body as this process takes place?
A.) Mechanical energy is converted to kinetic energy, which is then converted to potential energy.
B.) Chemical energy is converted to thermal energy and electrical energy.
C.) Electrical energy is converted to chemical energy and thermal energy.
D.) Mechanical energy is converted to potential energy which is then converted to kinetic energy.
Answers
Polymyxin is effective against only some Gram-negative bacteria; therefore, it is considered a __________.
Answers
Polymyxin is effective against only some Gram-negative bacteria; therefore, it is considered a Narrow-spectrum antibiotic.
Polymyxin is a type of antibiotic that is effective only against some specific Gram-negative bacteria. It is considered a narrow-spectrum antibiotic, meaning that it targets a specific group of bacteria, rather than a broad range of bacterial types. Because of its specificity, it is often used as a last resort treatment for infections caused by multidrug-resistant Gram-negative bacteria. However, it is not effective against Gram-positive bacteria and is therefore not considered a broad-spectrum antibiotic.
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Corundum is a mineral with a hardness of 9 on the Mohs hardness scale. For which application would corundum most likely be useful?
Answers
Answer:
grinding media, polishing compounds, sand papers, grinding wheels, and other cutting applications
Explanation:
The asnwer is B. Grinding Glass
Carbohydrates that function as structural molecules are extraordinarily resistant to degradation and decay. Which structural feature is most directly responsible?.
Answers
Structural polysaccharides is most directly responsible for it. It is built with β-1,4-glycosidic linkages.
The most prevalent type of carbs in food is a polysaccharide. They are long-chain polymeric carbohydrates made up of glycosidic connections that connect monosaccharide units.
The β-1,4-glycosidic connections that make up structural polysaccharides are extremely resistant to hydrolysis. Structural polysaccharides are particularly resistant to decay because β-1,4-glycosidic bonds are challenging to break.
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Which of the following molecules mediates a major exception to the flow of information outlined in the central dogma (DNA-RNA-protein)? Reverse transcriptase DNA polymerase Ribosomes RNA polymerase
Answers
The Reverse transcriptase mediates a major exception to the flow of information outlined in the central dogma (DNA-RNA-protein).
The central dogma of molecular biology states that information flows from DNA to RNA to protein. However, reverse transcriptase is an enzyme that mediates a major exception to this flow. This enzyme, found in retroviruses, synthesizes DNA from an RNA template.
This process is called reverse transcription, and it contradicts the central dogma because it involves the transfer of genetic information from RNA back to DNA, instead of the traditional flow from DNA to RNA.
Among the options provided, reverse transcriptase is the molecule that mediates a major exception to the central dogma's flow of information (DNA-RNA-protein), as it allows genetic information to flow from RNA back to DNA through reverse transcription.
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WILL GIVE BRAINLIEST!! Please just take time to look! Thank you:) Under the right circumstances, the lysogenic cycle changes to the lytic cycle. Explain whether the lytic cycle can change to the lysogenic cycle.
Answers
Answer:
I don't think that lytic cycle can change to the lysogenic cycle.
Environmental stressors such as starvation or exposure to toxic chemicals may cause the prophage to excise lysogenic cycle and enter the lytic cycle.
Hope it helps.