Answer:
C. the effects of an earthquake on blood pressure
Explanation:
Natural experiments are observational studies in which participants are randomly assigned to groups that allow the researcher to draw causal relationships between an event and a factor. These experiments are used in studies where it would be unethical and unacceptable to subject human participants to such conditions. It is most times applied in epidemiological studies.
Since the researcher cannot control an earthquake which is a natural occurrence, this can be rightly described as a natural experiment. Controls are not used in this type of experiment.
Proteins are composed of repeating units (monomers) called ____.
Answer:
Amino Acids make up proteins
The flora (plants) and fauna (animals) found on the bottom of any body of water are called what?
Answer:
the answer to the question is Epifauna also called epibenthos
Explanation:
any organism plant or animal that lives in the bottom of a body of water is classified as Epifauna
Choose the answer that best completes the blanks of this sentence in order. The two major groups of parasitic helminths include the ____ with a thin, segmented body and the ____ with a cylindrical, unsegmented body.
Answer:
The correct answer is - flatworms and roundworms.
Explanation:
Helminths are the group of free living and some are parastic organisms present in aquatic, terrestrial environment or in animals or plants respectively. parasitic helminths are the group of worms or organisms that lives inside the GI tract or other parts of the body of host and makes them weak. The two major groups of parasitic helminths are -
Flatworms (platyhelminths) is a parasitic helminths, have leaf like body which is thin and segmented while roundworms or nematode have cylindrical and unsegmented body.
Thus, the correct answer is - flatworms and roundworms.
Cigarette smoke contains a chemical that specifically mutates p53 and inactivates it. As a result of this mutation, what would happen in the affected cells? A.DNA damage would accumulate B. Cell death would not be activated C.The cell cycle would continue in spite of DNA damage D.All of the above
Answer:
The correct answer is - option D. all of the above.
Explanation:
Smoking cigarettes or consumption of tobacco contains chemical that is responsible for the mutating p53 gene specifically which inactivates the action of p53.
TP53 mutation changes the amino acid in the p53 protein which produces the altered or modified version of protein that is incapable of performing its action of repairing damaged DNA during cell cycle for genome stability. DNA damage would be accumulate as it is not able to control the cell division by apoptosis and cell death would not be activated.
Thus, the correct answer is - option D.
Zoologist: Horseflies are attracted to horizontally polarized light, which reflects off large, dark animals that they bite. This may explain why zebras evolved vertical stripes—the stripes cancel the horizontal polarization of light and thus make zebras less attractive to horseflies.
In order to assess the plausibility of the zoologist's hypothesis, it would be most helpful to know whether
A. any insects other than horseflies are attracted to horizontally polarized light.
B. the vertical stripes on zebras make it easier for any insects other than horseflies to see them.
C. animals that horseflies commonly bite have evolved other means of reducing the impact an frequency of those bites.
D. any biting insects other than horseflies are strongly attracted to zebras.
E. zebras' vertical stripes provide camouflage protection against certain large predators potentially very dangerous to zebras.
Answer:
D. any biting insects other than horseflies are strongly attracted to zebras.
Explanation:
In order to assess the plausibility of the zoologist's hypothesis, it would be most helpful to know whether if any other insects other than the horseflies are strongly attracted to the Zebra. If other insects are attracted to the zebra, we can then try to research and see if these other insects also show tendencies to be attracted to horizontally polarized light before we can conclude on this hypothesis. The hypotheses will hold more strongly if the same phenomenon applies to other biting insects attracted to the Zebra.
brain, nervous system, neuron, and a collection of neurons, what is their order from simplest to most complex?
Answer:
yes
Explanation:
A version of a gene is called a(n)
O allele.
O autosome.
O karyotype
O phenotype.
Answer:
allele
Explanation:
An allele can be defined as a variant of a gene localized at the same locus or chromosome position. These gene variants may encode the same protein (when different alleles encode the same protein sequence) or different protein variants (when nucleotidic differences encode distinct protein sequences). It is important to note that the diploid organisms (like humans) have two alleles for each gene, which are localized on homologous chromosomes.
A version of a gene is called an allele. Genes are sections of DNA that hold the instructions needed to make certain proteins or useful RNA molecules. Hence the correct option is A.
Alleles are distinct versions or variants of a gene that can cause changes in the trait or feature the gene controls.
Alleles are found at specific locations on chromosomes known as loci. Each gene is present in two copies in humans, one from each parent.
As a result, a person might be heterozygous (having two copies of the same allele for a given gene) or homozygous (having two copies of two distinct alleles).
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Which of the qualities listed below explain why certain organisms are classified as indicator species
Answer:
Indicator species, organism—often a microorganism or a plant—that serves as a measure of the environmental conditions that exist in a given locale. ... For example, greasewood indicates saline soil; mosses often indicate acid soil. Tubifex worms indicate oxygen-poor and stagnant water unfit to drink.
What is the controversy behind banning oxo-biodegradables?
Answer:
Oxo-biodegradables do not meet international biodegradation requirements, which has caused the authorities to prohibit their use, contrary to their formulators who defend their benefits in the environment.
Explanation:
Oxo-biodegradables are a type of plastic that can be broken up into tiny pieces, but that is not biodegraded by the action of nature. In this case, this type of plastic does not meet international biodegradation requirements, in addition, it can cause pollution, as its mini particles can affect rivers, soils, crops, in addition to being dispersed in the air and being eaten by animals.
The great controversy is that the creators of this type of plastic defend their benefit in the environment, however the authorities, considering the polluting potential of oxo-biodegradables, prohibited its use.
What information did you include in your answer? Check all that apply. uranium-lead (U-Pb) dating relative chronology expected effect of additional similar results on mass-extinction hypothesis connection between the use of new technology and a possible revision in the mass-extinction hypothesis identification of the use of the new technology as a new experimental method
Answer: D connection between the use of new technology and a possible revision in the mass extinction hypothesis
E identification of the use of new technology as a new experimental method
Explanation:
The connection between the use of new technology and a possible revision in the mass extinction hypothesis and identification of the use of new technology as a new experimental method is the information to include in an answer. So the correct options are D and E.
What is a hypothesis?
Repeated experimentation and observation have been used to devise scientific theories. These theories have been further referred to by peer reviews before they have been generally accepted by the scientific community.
Science involves methods and data that make sense of the world. The methods of principles are internally-consistent and well described. The progression from a hypothesis to a theory can only be through testable, scientific laws. There are only a few scientific facts that are natural laws as well but there are many hypotheses that can be tested to generate a theory.
Therefore, the correct options are D and E.
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TRUE or FALSE. Tofu or other soy protein substitutes are TCS foods.
Answer:
FALSE!!
Explanation:
2. Give an example of a question someone might ask to start a descriptive investigation.
Answer:
Classification of trees in a forest is an example of a descriptive investigation
Explanation:
A descriptive investigation is aimed at describing/quantifying the characteristics of a given population or natural system. In descriptive research, the characteristics of the system are classified into descriptive categories. This type of investigation does not involve causal associations where a variable is tested to see if it will affect other variables. Examples of descriptive research include the classification of chemical elements in a periodic table, observing human social behavior under extreme conditions, etc.
which cellular structure helps to maintain homeostasis by controlling the transportation substances into out of the cell
Answer:
Cell membrane
Explanation:
It forms an outer cover between the cell cytoplasm and it's outside environment.
Which is not a source of carbon dioxide?
O Forest fires
O Volcanoes
O Glaciers
OThe use of fossil fuels
Hi there! :)
Answer:
Glaciers.
Explanation:
Forest fires, Volcanoes and the use of fossil fuels all are sites of combustion. Carbon dioxide, or [tex]CO_{2}[/tex] is a byproduct of this reaction, which makes them sources of this gas.
On the other hand, glaciers are large, frozen reservoirs of water [tex](H_{2}O)[/tex] , which makes them not sources of carbon dioxide.
Fluoxitine is given to a client at a dosage of 500 mg every 6 hours. Assuming that the half-life of this drug is 3 hours, at what point would the drug level in the body be 62.5 mg of the original dose?
Answer:
The correct answer would be - 9 hours.
Explanation:
The half life of a drug is the time that is required to decrease or reduced to one half of the its original achieved level or the highest amount previously taken. The half life of drug is also known as the time a drug take to complete its action.
At a dose of 500 mg the Fluoxitine drug would be 250 mg in 3 hour as it is given that half life of this drug is 3 hours, 125 mg in 6 hours, and in the end 62.5 mg in 9 hours.
Thus, the correct answer is : 9 hours.
An arid region with few plants describes which climate or biome? Options: chaparral tundra desert rainforest
the answer is dessert
Students of different ages were given the same jigsaw puzzle to put together. They were timed to see how long it took to finish the puzzle. List the Independant, Dependant and Control variable (constant
Answer:
independent- the students
dependent- the time
constant- the jigsaw puzzle
Explanation:
4. What kind of bond is created by a weak electrical attraction between polar molecules?
ionic bond
hydrogen bond
nuclear bond
covalent bond
Answer:
hydrogen bond
Explanation:
by weak electrical attraction between two polar molecule hydrogen bond is developed between them
the example is water molecule in case of water two water molecules are attracted toward each other by strong hydrogen bond which is developed between highly electronegative oxygen of one water and electropositive hydrogen of another water molecule
"How many bubbles would both plants produce at the following depths: - 13 meters, 20 meters, 28 meters"
Answer:
39, 45
27, 42
6, 7
Explanation:
In 13 meters depth, there are 39 bubbles produced per plant in one minute and 45 bubbles are formed per plant in one minute. In the depth of 20 meters, there are 27 bubbles produced per plant in one minute and 42 bubbles are formed per plant in one minute. In 28 meters depth, there are 6 bubbles produced per plant in one minute and 7 bubbles are formed per plant in one minute.
Which of the following is a characteristic of electromagnetic waves?
Answer:
A
Explanation:
they are invisible yeah
Answer:
B
Explanation:
Which step is shown?
transpiration
translocation
transcription
translation
The given question is incomplete, and as there is two steps present in protein synthesis, attaching the the image related the question to answer.
Answer:
The correct answer is : translation.
Explanation:
Translation is the second essential step of the central dogma or the protein synthesis process that is takes place in the ribosomes of the cell, Ribosome reads decode the codon, a sequence of 3 sequence. tRNA comes with the anticodon to the codons that are present on ribosome in order to bind the amino acids to it.
The amino acid that was brought by the tRNA is detaches itself as it bind to the polypeptide chain forming on ribosome to create polypeptide chain, this process repeats itself up-to the stop codon.
Thus, the correct answer is : translation.
Answer:
translation
Explanation:
Question 9(10 points)
You are heating a piece of glass and now want to pick it up. You should
a
Ob
pick up the end that looks cooler.
use a rag or paper towels.
pour cold water on it.
ос
od
use tongs.
Question 10 (10 points)
Answer:
i think urse a
Explanation:
betbe
Determine the correct sequence of events during the creation of recombinant DNA. I. Plasmid is cut open with enzymes II. Target gene is cut out with enzymes III. Plasmid is inserted into the bacterium IV. Target gene is bonded to the plasmid with Ligase
A. IV, III, I, II
B. II, I, IV, III
C. IV, I, II, III
D. I, II, III, IV
Answer:
The correct answer should be choice B if I'm going about this the right way.
The correct sequence is as follows:
II. Target gene is cut out with enzymes
I. Plasmid is cut open with enzymes
IV. Target gene is bonded to the plasmid with Ligase
III. Plasmid is inserted into the bacterium
Genetic engineering, also known as genetic manipulation, is the use of recombinant DNA to change the genetic makeup of organisms. In the creation of a recombinant DNA, which is usually a plasmid + desired gene, the following processes are employed:1. The target or desired gene is initially cut out using enzymes called restriction enzymes.
2. The plasmid (extrachromosomal DNA) from a bacterium is then cut open.
3. Ligase enzyme is used to bond the target gene or gene of interest with the plasmid.
4. After bonding, the plasmid is inserted into a bacterium to multiply.
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answer fastttt!!!!!Start with argon in a gaseous state. Manipulate the heat variable to change it to a
liquid, then a solid. Explain what you did to make this happen:
Answer:
By lowering the temperature.
Explanation:
Argon is a gas at room temperature. By changing its state from gas into liquid, we have to lower the temperature up to -185.7 degree Celsius while to change its state from liquid to solid, we have to lower the temperature up to -189.2 degree Celsius. There are two process occurs such as condensation and solidification, in condensation, argon gas is converted into liquid while in solidification, liquid argon is converted into solid.
Define negative feedback of homeostasis
Answer:
A negative feedback loop is a reaction that causes a decrease in function. It occurs in response to some kind of stimulus. Often, it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostasis, as in biology, or equilibrium, as in mechanics.
plz give brainlist
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Megan hypothesized that type AB+ is the most common blood type in the United States. After conducting a literature search, she discovered the graph at right. Based on the information in the graph, which blood type is most likely to be in shortest supply during an emergency? ✔ AB- Which statement is most likely Megan’s conclusion? The hypothesis is supported because the most common blood type in the United States is AB+. The hypothesis is not supported because the most common blood type in the United States is O+.
Answer:
Explanation:
The answer: AB-
second one : The hypothesis is not supported because the most common blood type in the United States is O+.
Answer:
c b
Explanation:
2 Describe why it would be an advantage for the seeds
to be able to grow at any angle
Answer:
If plants could grow at any angle, resources could be better used, less labor would be spent, and crop production would increase.
Explanation:
By growing at different angles, crops could be generated in different locations that would not normally be beneficial or feasible for plant growth.
For this reason, land use would be higher for farmers as harvests would increase by making better use of the land and generating ideas to make better use of resources.
They could be better used, for example, a scale cultivation on a sloping terrain, no time would have to be spent flattening the ground and only the crops would have to be cared for.
Bees and Fungicides - CER i have 70 points Watch the HHMI Video: Effects of Fungicides on Bumble Bee Colonies CLAIM EVIDENCE REASONING Opinion: What should be done based on this information? Extension: Develop at least one new question related to bee colonies that could be tested. i have 70 points
Answer:
Use a connects app.
Explanation:
You’ve isolated a mutant defective in meiosis that displays unpaired homologous chromosomes in meiosis I. For this mutant, what do you predict the wild type gene encodes?
Nutrition experts recommend that most people eat less than 2,300 milligrams of sodium a day for good heart health. What percentage of this limit did you consume by eating these three foods? Are you surprised by this total? Explain your response. Plato
Explanation:
Sodium intake is important to health and most importantly, it is important to the heart. But excess sodium can lead to serious health issues. Therefore, the intake of sodium should be limited.
As per American Heart Association, an average American consumes more than 3400 mg sodium per day in their food. But the consumption must be limited to 2300 mg.
I am very much surprised to know that I consumed a lot more than this limit of sodium in my daily diet. I take up nearly 200 % of sodium intake. I am surprised by this and very much worried. If I continue to take sodium like this, it will have ill affects on my heart. So, I need to reduce my intake to less than 2300 mg of sodium a day. And also I need to do some cardiovascular exercise regularly.
Answer:
I ate 54% of the daily recommendation just from the pizza. I’m surprised, because even though pizza is a little salty, I didn’t realize it contained that much sodium.
Explanation:
Awnser form PLATO sample