Answer: I am not totally sure but I would say the answer would be (D)
Explanation: Exposure to Diborane will not kill you or anything like that but it will most likely cause you to have a cough, shortness of breath (but not to bad), and eye/skin irritation.
The process in which the cultures of the world slowly become more and more alike, merging into
one global culture is called
Answer: Acculturation.
Explanation: Acculturation is a process of social, psychological, and cultural change that stems from the balancing of two cultures while adapting to the prevailing culture of the society.
Which type of DNA mutation is harmful?
The right side of the diagram represents the change in a hypothetical
population of Colorado potato beetles over several generations under
agricultural practices that include the use of a pest-management
refuge.
Drag the following terms into the paragraph below to describe the
scenario.
dominant
resistance gene
recessive
adaptation
wildtype gene
advantage
disadvantage
evolution
In genetic terms, this kind of change in frequency of alleles in a
population over time is known as
On areas of this
farm where pesticides are applied, presence of the
puts wildtype beetles at a competitive
Yet wildtype
beetles breed normally in the refuge area. Because the refuge area
directly adjoins the treated field, there will continue to be cross-
breeding between wild and resistant beetles in the next generation. For
this cross-breeding to be an advantage to the farmer, the resistance
gene must be
and the wildtype gene must be
Answer:
In genetic terms, this kind of change in frequency of alleles in a population over time is known as EVOLUTION. On areas of this farm where pesticides are applied, the presence of the RESISTANCE GENE puts wildtype beetles at a competitive DISADVANTAGE. Yet wildtype beetles breed normally in the refuge area. Because the refuge area directly adjoins the treated field, there will continue to be cross- breeding between wild and resistant beetles in the next generation. For this cross-breeding to be an advantage to the farmer, the resistance gene must be RECESSIVE. and the wildtype gene must be DOMINANT.
Explanation:
Let us analyze each sentence separately.
In genetic terms, this kind of change in frequency of alleles in a population over time is known as EVOLUTION.
Adaptive evolution refers to changes in the organism that lead to the evolution of the species and are adaptive to determine conditions of the environment. Natural selection produces adaptive evolution.
The term resistance refers to an inheritable change in the population sensitivity, reflected through the consecutive failure of the chemical effects, correctly used to reach an effect on the insect population.
In the exposed example, insecticides might produce a genetic modification in the insects, leading them to survive under the effects of the chemical. Insects evolve with the capability of tolerating the poison dose that is usually used to destroy a normal population of plagues.
On areas of this farm where pesticides are applied, the presence of the RESISTANCE GENE puts wild-type beetles at a competitive DISADVANTAGE.
Chemicals act as a selective pressure on areas where pesticides are applied. Some of the insects mutate and develop a resistance gene, becoming capable of surviving the pesticide. Natural selection benefits these mutations. So insects carrying the mutated gene are resistant, while the insects with the wild-type genotype are not. So in the parcel treated with pesticide, wild-type individuals can not survive. They are at a disadvantage concerning the mutated type.
For this cross-breeding to be an advantage to the farmer, the resistance gene must be RECESSIVE. and the wildtype gene must be DOMINANT.
The farmer needs to keep the number of potato beetles low, to protect the crop from the attack of the insects. To keep under control the number of insects, they have to be vulnerable to the chemical. And to be vulnerable to the chemical, insects should carry the wild-type genotype. So to increase the number of susceptible individuals carrying the wild-type gene, it must be dominant over the mutated form, which should be recessive.
How did Hershey and Chase know that DNA carries the information that
viruses transfer into bacteria?
OA. They found that the radioactive sulfur disappeared in the
centrifuge.
B. Radioactive phosphorus was found in the fluid.
C. Radioactive sulfur was found in both the pellet and the fluid.
OD. Radioactive phosphorus was found in the bacterial pellet.
A) Due to the lesser weight of the protein coat, it was discovered in the supernatant, whereas the infected bacteria settled at the bottom of the centrifuge tube.
Because DNA was passed from virus to bacterium, it was demonstrated that DNA is the genetic material.
How did Hershey and Chase conclude that the genetic information was carried by DNA rather than proteins?Hershey and Chase were able to demonstrate that DNA is the sole substance directly transported from bacteriophages into bacteria when the bacteria are infected by these viruses by employing radioactive labels that would specifically integrate into either DNA or protein, but not both.
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Which of the following statements correctly describes each new molecule of DNA produced after DNA replicates?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Each new molecule contains one strand from the parent molecule and one newly synthesized strand.
(Choice B)
B
Each strand of DNA is combined with a strand of RNA.
(Choice C)
C
Each new molecule retains the A, C, and G bases in the DNA sequence, but replaces the T base with U.
(Choice D)
D
Each new molecule is half the length of the original molecule.
which choice describes the flow of energy in a food chain?
a. grass - rabbit - wolf - sun
b. wolf - sun- grass- rabbit
c. sun- grass-rabbit-wolf
d. rabbit - wolf -sun - grass
Answer:
C.
Explanation:
c. sun- grass-rabbit-wolf
Answer:
C
Explanation:
sun- grass-rabbit-wolf
Sun makes grass grow, rabbits eat grass, and finally wolves eat rabbits.
A female rabbit had eight babies. Four of the babies were black and four we 4 points re white. In rabbits, the allele for black fur
(B) is dominant to the allele for white fur (b).
What genotype in the mother and father rabbits could produce this outcome in the phenotypes of their offspring? Write a scientific explanation that expla ins the genotype of the female and male rabbits.
In this case, the father would have either a BB or perhaps a Bb genotype, while the mother had a bb genotype. Their white babies would be bb, and their black babies would be Bb.
What is the primary source of each rabbit baby's genes?Every child who receives one gene from it's own mother and the other from its uncle. The above white babies may have inherited one b genotype from their mom and one from their father, whereas the black babies may have inherited a b allele from there own mother and a B from there own father.
The color here between two copies A of the genes is identical, but the color here between heterozygote B of the genomes is separate, the one that a high makes it appear darker but also the one with below did appear clearer, so they are genotype. An polymorphism refers to one of the various forms of the same gene. Alleles are homologous chromosomes that share the same position (locus).
As a result, in this case, the father would have either a BB or perhaps a Bb genotype, while the mother had a bb genotype. Their white babies would be bb, and their black babies would be Bb.
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Identify mineral resources and how they are used.
Fats, sugars, and proteins are important food molecules. Which statement about these types of molecules is true?
The statement "There are all macronutrients" is true about these types of molecules
What are macronutrients?Macronutrients, essential components required by the body in substantial quantities, furnish energy, foster tissue growth and mending, and govern physiological processes. The trio of primary macronutrients encompasses carbohydrates, protein, and fat.
The precise magnitude of macronutrient requisites relies on factors such as age, gender, physical exertion, and overall well-being of an individual.
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Complete question:
Fats, sugars, and proteins are important food molecules. Which statement about these types of molecules is true?
a. There are all macronutrients
b. Sugar makes one fat
c. Sugar is the only thing that makes you fat
what is the function of guard cells?
Answer:
Guard cells are adapted to their function by allowing gas exchange and controlling water loss within the leaf. The size of the stomatal opening is used by the plant to control the rate of transpiration and therefore limit the levels of water loss from the leaf. This helps to stop the plant from wilting .
Explanation:
Explanation:
regulates the entry of materials needed for the process of photosynthesis. can contain chloroplast which can also make them a site of photosynthesis
The populations of predators and prey tend to stabilize over time. What will
most likely happen if the population of a prey species decreases?
OA. The prey population will increase quickly.
OB. The predator population will increase.
OC. The predator population will maintain its original size.
OD. The predator population will decrease.
SUBMIT
Answer:
D. The predator population will decrease.
Explanation:
If there is less prey, the food source for predators decreases therefore shortening the lifespan of some predators.
The natural services that support life and human
economies at no monetary cost, such as pollination
and the purification of air and water
Chapter 1 page 40 the environment and sustainability
Answer:
Have you everything with the last day
Brandon was walking along one day and came across a rock. He noticed a fossil in it. What type of rock did he have?
Answer
Sedimentary rock
when a cell grows and develops
O A. cytokinesis
B.
mitosis
c. interphase
Answer:
cytokinesis
Explanation:
Some information about bacteria and viruses is arranged in this table.
Which argument about bacteria and viruses is supported by this information?
A.Bacteria are larger than viruses but are still small enough to enter cells.
B.Both bacteria and viruses are surrounded by protective coverings, through the composition of each covering may be different.
C. Only bacteria can acquire new characteristics, which makes them more difficult to treat.
D.Bacterial infections such as diphtheria and tetanus cannot be prevented by vaccines.
Answer: B
Explanation: Bacteria are larger than viruses but are still small enough to enter cells.
the upstairs in a house is usually warmer than downstairs.this is due to what type of heat transfer
Heat transfer is the term used to describe the movement of heat (thermal energy) caused by temperature differences and the subsequent distribution and variations in temperature.
The generation, utilization, conversion, and exchange of thermal energy (heat) across physical systems is the subject of the thermal engineering field known as heat transfer.
Different heat transmission techniques, including thermal conduction, thermal convection, thermal radiation, and energy transfer by phase changes, are categorized.
To achieve heat transmission, engineers also take into account the advection of material containing various chemical species, whether hot or cold.
Thus, Heat transfer is the term used to describe the movement of heat (thermal energy) caused by temperature differences and the subsequent distribution and variations in temperature.
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PLZ HELP!!! PLEASEEEE ITS DUE
Answer: a wet climate in which temperatures alternate from above freezing to below freezing
Explanation:u need a wet climate because there needs to be available water that can wedge itself into cracks. And the climate needs to fluctuate from below freezing to above freezing so the water can continue to maneuver itself into the cracks, and then continue to freeze.
Hummingbirds share a mutualistic relationship with the flowers they feed on. Which of
these statements about the relationship between the flower and the hummingbird is true?
Answer:
yes
Explanation:
Transcription of the developmental gene M is influenced by two different proteins: B and H. Studies of single and double mutants generated the following information:
In mutants lacking B, transcription of M does occur
In mutants lacking H, transcription of M does not occur.
In double mutants lacking B and H, transcription of M does occur.
Based on this information, put these genes in order in a developmental pathway. Use arrows and t-bars between the genes as appropriate. Choose the correct identity of each below.
Gene 1 1st Symbol Gene 2 2nd Symbol Outcome
Answer:
B --I H >> M transcribed
Explanation:
Reverse genetics is a classical approach used in molecular genetics to elucidate gene function in a signaling gene network. This technique consists of producing loss of function mutations in genes of interest in order to analyze their phenotypic effects in the downstream signaling pathway.
In this case, the mutation in B didn't affect the expression of the developmental gene M, together with the other mutant lines, this experiment indicates that B is a downstream suppressor of H (since further experiments show that B plays a role in the signaling pathway). Moreover, the mutation in the gene H affects the expression of M, thereby showing that H acts as a downstream activator of M. Finally, B-H double mutants did neither affect the expression of M, thereby showing that M transcription is dependent of the interaction between B and H.
Knowing that proteins B and H interact with each other, and they influence the expression of the M gene, we can propose the following developmental pathway B gene --| H gene >> M gene
------------------------------
Gene pathways refer to the regulation of genes expression by turning them on and off. Many genes and proteins might be involved in this process, each of them playing significant roles in the signaling pathway.
Available data:
The transcription of gene M depends on proteins H and BIf protein B is lacking, gene M is transcriptedIf protein H is lackin, gene M is not transcriptedIf B and H are lackin, gene M is transcriptedAccording to this information, we can assume that,
The mutation in protein B did not influence the transcription of the gene M because even when B is lacking, the gene is transcripted anyway.
However, we can see that H affected M transcription. The mutation in the H protein influenced the gene transcription.
Mutations in proteins H and B did not influence the transcription of the M gene because, in the absence of both proteins, the gene was expressed.
Probably proteins B and H interact with each other, and this interaction influences the M gene transcription.
The developmental pathway is then as follows,
B gene --| H gene >> M gene
------------------------------------
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What is the process of oxidation-reduction?
An oxidation-reduction (redox) is a form of chemical reaction during which electrons are swapped among three varieties. Any chemical process when the oxidation state of a molecule, atom, or ion shifts by transferring or losing an electron is an oxidation-reduction reaction.
Any formed from the reaction under which the oxidation percentage of an able to participate chemical species variations is known to as an oxidation-reduction reaction. Oxidation is a chemical process. It is viewed as the technique through which particles or atom groups end up losing electrons. Another meaning of oxidation is that when a substance absorbs or releases hydrogen. Whenever these events happen, oxidation occurs. A substance gains one or more electrons during the reduction process. An oxygen atom or electronegative atoms are lost. A hydrogen atom or electrophilic atoms are obtained.
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2. Explain why glucose continues to enter a cell, even when the concentration inside the cell might be higher than outside.
Answer:
Both diffusion and facilitated diffusion are driven by the potential energy differences of a concentration gradient. Glucose enters most cells by facilitated diffusion. ... Na+ is maintained at low concentrations inside the cell and K+ is at higher concentrations. The reverse is the case on the outside of the cell
Glucose continues to enter a cell, even when the concentration inside the
cell might be higher than outside as a result of the process known as active
transport.
Active transport involves the movement of molecules through a
cell membrane against the concentration gradient. Examples include:
Antiport Pumps.Symport Pumps.This type of transport requires the use of energy such as ATP to move the
glucose molecules into the cell.
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ATP can be produced via two cellular respiration pathways. one that occurs in the presence of oxygen and one that occurs in its absence. Name and explain how these two mechanisms differ.
Aerobic and anaerobic respiration are the two different types of cellular respiration processes that are used to produce ATP.
ATP (adenosine triphosphate) is a molecule used by cells for energy storage and transfer. Two types of cellular respiration pathways are present for ATP production: aerobic respiration and anaerobic respiration. The primary difference between these two is the presence of oxygen.ATP production during aerobic respiration occurs in the presence of oxygen. This process occurs in three stages: glycolysis, the Krebs cycle, and oxidative phosphorylation. In the first stage, glucose is broken down into pyruvate, which is then moved to the mitochondria in the second stage, the Krebs cycle, where it is further processed. The last stage is oxidative phosphorylation, in which the electron transport chain and chemiosmosis use the energy generated to create ATP.Anaerobic respiration occurs in the absence of oxygen, and it is a less efficient method of ATP production. Anaerobic respiration begins with glycolysis, the same as aerobic respiration. Instead of moving to the Krebs cycle, pyruvate is transformed into lactate or ethanol. These pathways are not as effective at producing ATP, but they can supply ATP during periods of low oxygen. In summary, the main difference between these two pathways is the presence or absence of oxygen during the process.For more questions on adenosine triphosphate
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a Bryophyta is called amphibian plant .
Answer:Bryophytes are called amphibians of the plant kingdom because these plants though live in soil but they need water for sexual reproduction.
Explanation:
Which correctly lists three planets that have rings?
O Jupiter, Mars, Saturn
O Mars, Jupiter, Mercury
Mercury, Mars, Venus
O Neptune, Uranus, Jupiter
The minor Deimos Ring, as mentioned earlier, but it is not comparable to the extensive ring systems of Saturn or Jupiter Mercury does not have any known rings the correct combination is "Jupiter, Mars, Saturn" when referring to planets that have rings.
Out of the four options provided, the only combination that consists of three planets with rings is "Jupiter, Mars, Saturn."
Jupiter: Jupiter is the largest planet in our solar system and is well-known for its impressive ring system.
Although not as prominent as Saturn's rings, Jupiter's rings are made up of fine dust particles and are relatively faint compared to those of Saturn.
Mars: Mars is the fourth planet from the Sun and is often referred to as the "Red Planet."
While it doesn't possess a large, visible ring system like Saturn or Jupiter, it does have a thin dust ring called the Deimos Ring.
This ring is composed of dust particles kicked up by the Martian moon Deimos as it orbits the planet.
Saturn: Saturn is renowned for its spectacular and prominent ring system. It is composed of countless icy particles ranging in size from micrometers to meters.
Saturn's rings are one of the most iconic features in our solar system and are visible even from small telescopes.
The other options listed do not accurately represent planets with ring systems:
Mars, Jupiter, Mercury: While Jupiter is included, neither Mars nor Mercury have prominent ring systems.
Mars has the minor Deimos Ring, as mentioned earlier, but it is not comparable to the extensive ring systems of Saturn or Jupiter. Mercury does not have any known rings.
Mercury, Mars, Venus: None of these three planets have significant ring systems.
Mercury and Venus do not possess any rings, and Mars has only the minor Deimos Ring.
Neptune, Uranus, Jupiter: Neptune and Uranus both have ring systems, but Jupiter does not.
Therefore, this option does not accurately list three planets with ring systems.
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The minor Deimos Ring, as mentioned earlier, but it is not comparable to the extensive ring systems of Saturn or Jupiter Mercury does not have any known rings the correct combination is "Jupiter, Mars, Saturn" when referring to planets that have rings.
Out of the four options provided, the only combination that consists of three planets with rings is "Jupiter, Mars, Saturn."
Jupiter: Jupiter is the largest planet in our solar system and is well-known for its impressive ring system.
Although not as prominent as Saturn's rings, Jupiter's rings are made up of fine dust particles and are relatively faint compared to those of Saturn.
Mars: Mars is the fourth planet from the Sun and is often referred to as the "Red Planet."
While it doesn't possess a large, visible ring system like Saturn or Jupiter, it does have a thin dust ring called the Deimos Ring.
This ring is composed of dust particles kicked up by the Martian moon Deimos as it orbits the planet.
Saturn: Saturn is renowned for its spectacular and prominent ring system. It is composed of countless icy particles ranging in size from micrometers to meters.
Saturn's rings are one of the most iconic features in our solar system and are visible even from small telescopes.
The other options listed do not accurately represent planets with ring systems:
Mars, Jupiter, Mercury: While Jupiter is included, neither Mars nor Mercury have prominent ring systems.
Mars has the minor Deimos Ring, as mentioned earlier, but it is not comparable to the extensive ring systems of Saturn or Jupiter. Mercury does not have any known rings.
Mercury, Mars, Venus: None of these three planets have significant ring systems.
Mercury and Venus do not possess any rings, and Mars has only the minor Deimos Ring.
Neptune, Uranus, Jupiter: Neptune and Uranus both have ring systems, but Jupiter does not.
Therefore, this option does not accurately list three planets with ring systems.
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Which term refers to the way light interacts with the surface of a rock or mineral?
A. density
B. luster
C. cleavage
d. hardness
Answer:
Luster
Explanation:
No explanation that is just the answer
C. Did any hominids have a larger cranial capacity than humans? If so, which species?
Answer:
Yes, heidelbergensis species had a larger cranial capacity than humans.
Explanation:
A condition in the environment that can restrict a population's growth is
The region where water is "not allowed" around the fatty acid tails is called:A. polar.B. hydroponic.C. hydrophilic.D. hydrophobic.
Answer:
Effectively, materials are not allowed to pass between two (or more) adjacent cells that have tight junctions within their plasma membranes. Gap junctions.
Explanation:
Answer:hydrophobic:)
Explanation:
Describe the differences and similarities between lecithin and cephalin. Match the words in the left column to the appropriate blanks in the sentences on the right. ResetHelp Lecithins and cephalins are both sphingolipids; they consist of glycerol with fatty acids forming bonds with the first and second groups. The third group of the forms a with phosphoric acid, which forms another bond with an amino alcohol. In lecithins, the amino alcohol is ; in cephalins, the amino alcohol is usually .
Answer:
Here, we have a composition passage and we are required to fill in the with missing words. The missing words are highlighted in bold format and underlined.
Lecithins and cephalins are both glycerophospholipids; they consist of glycerol with fatty acids forming ester bonds with the first and second hydroxyl groups. The third hydroxyl group of the glycerol forms a phosphate bond with phosphoric acid, which forms another phosphate bond with an amino alcohol. In lecithins, the amino alcohol is choline; in cephalins, the amino alcohol is usually ethanolamine.
Explanation:
Lecithin is a chemical complex composed primarily of fatty acids, glycerol, phosphoric acid, and choline. It can be present in egg yolks, soybeans, sunflower seeds, and plant seed cells and is completely normal. Soybean and sunflower lecithins contain much more important fatty acids than rapeseed lecithin, making them nutritionally more useful.
Phosphatidylethanolamine, also known as cephalin, is a phosphoglyceride that, like phosphatidylcholines and lecithins, is a component of biological membranes. A glycerol residue esterified by two fatty acids and a phosphoethanolamine residue gives rise to phosphatidylethanolamines. They're made by combining CDP-ethanolamine with diglycerides and releasing a CMP molecule. Phosphatidylcholines are formed when S-adenosylmethionine methylates the amine in ethanolamines. They're mostly found in the inner layer of plasma membranes' lipid bilayers.
Carlton and Vanessa are lab partners in their biology class. One of their labs was to run the smell test experiment on each other.
When performing the smell test, Vanessa was quite good at noticing a difference between the various intensities of vanilla and also
the various intensities of evergreen. Although Carlton could distinguish what the vanilla and evergreen smells were, he couldn't tell
there was a difference in the intensities in the vanilla or the evergreen. Based on the information presented in this scenario, which
of the following is true?
Vanessa has a more sensitive difference threshold than Carlton.
Carlton has an impaired absolute threshold.
Vanessa has a better absolute threshold than Carlton.
Carlton has the superior performance with respect to the difference threshold.
Vanessa has an impaired absolute threshold.
Vanessa has a better absolute threshold and more sensitive difference threshold than Carlton, and Carlton has an impaired absolute threshold.
Carlton and Vanessa were lab partners for a biology class and were asked to run a smell test experiment on each other.
Vanessa was excellent at noticing the difference between various intensities of vanilla and evergreen.
Carlton, on the other hand, couldn't distinguish the difference in the intensities of both vanilla and evergreen, though he could tell the smells of both.
Hence, based on the information provided in the scenario, it can be inferred that Vanessa has a more sensitive difference threshold than Carlton, and Carlton has an impaired absolute threshold.
The two significant aspects that are involved in the scenario are absolute threshold and difference threshold.
The absolute threshold is the smallest quantity of a stimulus that an individual can detect, whereas the difference threshold is the minimum difference in stimuli that an individual can detect.
Carlton could recognize the stimuli's smell but not the difference in the intensity of vanilla and evergreen.
This shows that Carlton has an impaired absolute threshold.
He could not detect the smallest quantity of a stimulus to differentiate between the smells.
Vanessa was quite good at noticing the difference in the intensities of vanilla and evergreen.
This means that Vanessa has a more sensitive difference threshold than Carlton. She could detect the minimum difference in stimuli required to differentiate between smells.
Vanessa also has a better absolute threshold than Carlton as she could detect the smallest quantity of stimulus required to detect the smells.
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