The scientific method is fundamental in health care professionals because all procedures and knowledge in this field are based on the application of this method.
What is the scientific method?The scientific method is a series of steps used to collect empirical evidence associated with all scientific disciplines.
Healthcare is a scientific field and therefore all hypotheses in this area should be tested (either rejected or confirmed) by using the scientific method.
In conclusion, the scientific method is fundamental in health care professionals because all procedures and knowledge in this field are based on the application of this method.
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In a phase diagram,which of the following is the term used for a substance held at a temperature and pressure where the solid ,liquid and gaseous states of substance exist simultaneously? A. triple point. B. critical point. C.absolute zero. D. critical temperature
Which of the following substances is responsible for donating H+ ions to act as a buffer when blood PH rises? A. oxygen b.carbon dioxide. C.carbonic acid .d.Carbon monoxide
In a certain plant red flowers are dominant over whote flowers. A plant heterozygous for red and a plant white flower are created. Which of the following is the expected proportion of phenotypes in the next generation? A. 3 red 1 white. B. 1 red 3 white. C. 2 red 2 white d. 4 red 0 white.
If a portion of a strand of DNA bases reads AGCTAGCGT3, what would the sequence of bases on the complementary strand read?,.
Which of the following are specific immune responses (select all that apply.) a. The formation of memory B cells. B. complement proteins binding to and destroying bacteria. C. antibody production. D. endocytosis of a virus by a phagocyte lymphocyte. E. T lymphocyte activation and clonal expansion
Which of the following is a mass within the ovary that secrets hormones to maintain the uterine lining during pregnancy. A. ovidcut. B.oocyte. C. umbilical cord. D corpus luteum
A myocardial infarction affects which of the following blood vessesls of the heart? A. pulmonary. B vena cava. C.coronary d. Aorta
The correct answers are triple point, Carbonic acid, Antibody production, endocytosis of a virus by a phagocyte lymphocyte. E. T lymphocyte activation and clonal expansion, Corpus luteum and Aorta.
What is triple point?In a phase diagram, triple point is the term used for a substance held at a temperature and pressure where the solid ,liquid and gaseous states of substance exist simultaneously.
Carbonic acid is a substance that is responsible for donating H+ ions to act as a buffer when blood pH rises.
Antibody production, endocytosis of a virus by a phagocyte lymphocyte. E. T lymphocyte activation and clonal expansion are specific immune responses.
Corpus luteum is a mass within the ovary that secrets hormones to maintain the uterine lining during pregnancy.
A myocardial infarction affects Aorta blood vessels of the heart.
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Which organelle is labeled H?
Answer: H labeled the cell membrane
The amino acid chain breaks away from the ribosome and folds into a protein.
The ribosome moves along the mRNA. tRNA molecules bring the amino acids coded for by the RNA from the cytoplasm and begin to assemble them.
The RNA strand leaves the nucleus and travels to a ribosome.
The amino acid chain grows as more amino acids are brought from the cytoplasm.
Select the correct order of steps in the process of translation:
A.
1, 2, 3, 4
B.
2, 3, 4, 1
C.
3, 2, 4, 1
D.
4, 3, 2, 1
The correct order of steps is 3, 2, 4, and 1.
What is translation?It is a process whereby the genetic codes in transcribed mRNA molecules are translated into their respective amino acids.
The steps involved in translation are:
Transcribed mRNA leaves the nucleus and travels to the cytoplasm where it gets attached to the ribosometRNA molecules bring the amino acids coded for by the RNA from the cytoplasm and begin to assemble themThe amino acid chain grows as the mRNA molecules are read by the translation machinery (the ribosome) and more amino acids are brought from the cytoplasm.The amino acid chain breaks away from the ribosome and folds into a protein.Thus, the step is 3,2,4, and 1.
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Identifying Conditions for Natural Selection Complete the sentences to identify the conditions that are necessary for natural selection. The environment needs to change. In this lab, the of the light was the change to the environment. Populations must have some Organisms must have a specific the majority of the survivors were light red. variation. In the bean population, the color of the beans varies. in order to survive and reproduce. During the period of red light pollution, ✓ Done Identifying Conditions for Natural Selection Complete the sentences to identify the conditions that are necessary for natural selection . The environment needs to change . In this lab , the of the light was the change to the environment . Populations must have some Organisms must have a specific the majority of the survivors were light red . variation . In the bean population , the color of the beans varies . in order to survive and reproduce . During the period of red light pollution , ✓ Done
Color, Genetic & Trait is the correct answer.
Complete the sentences to identify the conditions that are necessary for natural selection?The environment needs to change. In this lab, the color of light was the change to the environment.
Populations must have some genetic variation. In the bean population, the color of the beans varies.
Organisms must have a specific trait in order to survive and reproduce. During the period of red light pollution, the majority of the survivors were light red.
Thus, Color, Genetic & Trait is the correct answer.
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Answer:
color genetic and trait
Explanation:
i read the book
What happens at the end of translation?
Answer:
Explanation:
Translation ends in a process that called ( termination) .
Termination happens when a stop codon in the mRNA (UAA , UAG , UGA ) enters the A site.
Stop codons are recognized by proteins called release factors,
which fit neatly into the P site (Though they aren't tRNAs ) .
Answer:
Termination
Explanation:
The process of transcription involves creating RNA from a DNA template.
In the last stage of transcription, known as termination, the DNA-RNA hybrid separates from the original strand of RNA. Recognizing the point at which no more bases should be added is necessary for terminating transcription. The DNA sequence needed for termination is known as the terminator and consists primarily of the poly U region. At this point, the enzyme stops adding nucleotides to the developing RNA strand and separates from the DNA template.
This process is used by bacteria in two different ways.
1. Initial termination ( Rho - independent )
In this instance, the transcript strand creates a hairpin shape by creating G-C rich inverted repetitions, which permits the creation of a hair-pin structure at this position. However, the transcription bubble is insufficient to support the DNA-RNA hybrid, and the RNA polymerase is then knocked off.
2. Rho — DEPENDENT
Rho is a protein that is involved in this kind of termination process. The RNA-stimulated helicase Rho factor, which disrupts RNA-DNA hybrids, is ATP dependent. At the rut location, this Rho protein binds to RNA ( Rho utilization site ). Rut has to be free of the ribosome in order to bind Rho. When RNA polymerase stops moving at the rut site, Rho protein catches the polymerase and uses helicase activity to separate the DNA-RNA hybrid.
Whats the correct answer answer ASAP for brainlist
what is the significance of test cross
Answer:
The test cross is performed to determine the genotype of a dominant parent if it is a heterozygous or homozygous dominant. On the basis of the results obtained in the ratio of the offspring, it can be predicted that the parent is having which genotype.
Need help with this please
Answer: movement is always voluntary
Explanation:
Muscles are contractile:
- Contractility is the ability of muscle cells to forcefully shorten. Think of having the ability to flex a muscle.
Muscles are excitable:
- Excitable tissue can conduct or transmit electrical impulses. Basically, it can react to stimulus, which may be delivered from a motor neuron or a hormone. For example, the hormone epinephrine helps muscles to produce force.
Muscles respond to stimulus:
- well since muscles are an excitable tissue, they can react to stimulus. (see answer above)
————————
Muscle movement is NOT always voluntary:
- Some muscle movement is voluntary, which means it is under conscious control. For example, a person decides to open a book and read. Other movements are involuntary, meaning they are not under conscious control, such as the contraction of your pupil in bright light, breathing, blinking, your heart beating, etc.
- Therefore, the correct answer is:
movement is always voluntary
hope this helps :)
How is a phoshpodiester bond formed?
Explanation:
A phosphodiester bond occurs when two of the hydroxyl groups in phosphoric acid react with hydroxyl groups on other molecules to form two ester bonds
Explanation:
A phosphodiester bond forms when two of the hydroxyl groups in phosphoric acid react with hydroxyl groups on other molecules to form two ester bonds. Phosphodiester bonds are central to all life on Earth,[fn 1] as they make up the backbone of the strands of nucleic acid
.
Put the steps of DNA replication in the correct order.
1.
Complementary bases come in
2.
DNA unzips
3.
The backbone bonds to bases and bases bond to each other
4.
The sugar-phosphate backbone is constructed
5.
The bases are proofread
a.
Step 2
b.
Step 5
c.
Step 4
d.
Step 1
e.
Step 3
Answer:
The five steps of DNA replication are (1) DNA unzips, (2) complementary bases come in, (3) the sugar-phosphate backbone is constructed, (4) the backbone bonds to bases and bases bond to each other, and (5) the bases are proofread.
The process of DNA replication.You may thus remember that your cells produce enzymes as catalysts to carry out activities. Your cells turn on an enzyme called DNA helicase for DNA replication. Your DNA is grabbed by the helicase molecule, which then gently unravels and unwinds the entire DNA molecule. Another group of enzymes known as DNA polymerase follow behind it as it moves.
There are also free-floating nucleotides present in your cell. Normally, your cell utilizes them to build RNA for communications, but now the DNA polymerase enzymes take them up and assemble them into new DNA. If the polymerase tries to insert the incorrect nucleotide, it won't fit since each nucleotide can only ever link to its matching nucleotide (A->T, G->C), which stops the process. Another nucleotide is taken after discarding the erroneous one. The leading edge is created in this manner.
Another enzyme, which should be mentioned, primes the nucleotides with phosphate groups that the polymerases grasp onto and then discard when the nucleotides are integrated into at the DNA strand.
It becomes a little trickier with the lagging strand. The polymerase will move in the same direction as the helicase on one side because the polymerases can only move in one way (5'-3'), but it cannot move in the opposite direction on the other. The open DNA on that side is instead read by a different enzyme known as DNA primase (there are many of them), which then synthesizes RNA segments that are identical. A different polymerase converts the RNA primer to DNA, followed by a third enzyme (DNA ligase) that joins the ends of those DNA segments to create the new whole DNA from the lagging strand. This process starts with one polymerase using the primer to attach and build DNA in the opposite direction of the helicase.
The two new complete sets of DNA are therefore formed from the leading and lagging strands. The other half is composed of the old DNA that was divided in half, while the first half is entirely new and formed of free nucleotides.
The process by which your cells divide then involves bundling up the DNA, dividing, and a whole bunch of other things.
Little more info that might answer some extra questions:The primase is not what puts the extra phosphate groups onto the loose nucleotides. As far as I'm aware, that's part of their construction. Those phosphate groups are what provides the energy for the polymerase to attach them to the DNA strand, after which they're discarded to be picked up and reused later to build more nucleotides. The nucleotides themselves are made with a different series of enzymes. Suffice it to say, enzymes are like tiny molecular robots in a factory using chemical reactions to build what your cell needs, each enzyme responsible for one of the often many reactions needed. The process for constructing nucleotides is over my head, but it boils down to a series of enzymes putting molecules together and changing their shape.
What primase does is construct the RNA primers that the polymerase fuses to the DNA strand to become the other half of that side of the DNA.
The lagging strand isn't smaller, it's just being constructed in the opposite direction from the way the DNA is being unzipped by the helicase. Typically, you picture DNA like a twisted ladder, but that's not quite right. The reason it has the twist has to do with the structure of the base pairs. The two chains of the DNA run opposite from each other. If you're looking at it like a ladder, one side is "upside down". The helicase starts unzipping from either end of the DNA strand, but for one side of the DNA it's unzipping 3'-5', and for the other side it's unzipping 5'-3'.
The polymerase only constructs DNA going from the 5' end to the 3' end. For half the DNA, this works perfectly fine - it follows merrily along behind the helicase as it unzips the DNA strand. As each base pair separates, the polymerase just pops a new base onto the half it's attached to. For the other half, though, from its perspective the DNA is getting unzipped 3'-5', which is opposite the direction the polymerase can go. It can't follow behind the helicase. Instead, primase comes in and builds RNA segments in the 5'-3', "backwards" from the helicase, giving the polymerase something to grab and go the direction it wants to go.
Consider the following genotype: Yy Ss Hh How many different gamete combinations can be produced?
In this case, the number of possible gamete combinations that can be produced is equal to six (6).
What is gamete combinations?Gamete combination refers to the possible alleles in different gametes produced by an individual.
In the case of unlinked alleles, there are 6 gamete combinations for these three heterozygous loci (YSH, YSh and Ysh, ySH, ySh and ysh).
In conclusion, the number of possible gamete combinations that can be produced is equal to six (6).
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Two students were having a discussion about viruses. Student A believes viruses are
not living organisms. Student B believes viruses are living organisms. Which student
is correct and why?
roduce on their own.
Answer:
Student A is correct.
Explanation:
Viruses are not alive. Living things are defined as having cells, and viruses only have a protein coat to protect their genetic material. They are not made out of cells, therefore, they are not alive.
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What does a food web show?
A. how much energy gets transferred between trophic levels
B. the complex interactions and feeding relationships between organisms within an ecosystem
C. the cycle of organic materials in an ecosystem
PLEASE HELP
Answer:
B
Explanation:
The answer is B because A is an energy pyramid, and it cannot be C because a food web is not a cycle as it doesn't restart.
give the result of this study why can't the researcher draw a causal connection between behavior disorder and temperament
Answer:
El DSM- V lo define como un patrón repetitivo y persistente de comportamientos en los que no se respetan los derechos básicos de los otros, las normas, reglas sociales o leyes
Part E: Write Your Paper
Write your research using your outline and the research you've collected. Be sure to proofread andrevise your writing to catch any errors in grammar, spelling , logic, or cohesion e. Remember that
you must add a works cited page at the end of your paper to give credit to your sources.
When you have completed your paper, submit it to your teacher along with this activity.
A good sample to use to write your essay about the cure for cancer is:
Define what cancer isMention the harmful things which cancer has causedMention the cure you have for cancerUse supporting details from reputable sourcesMake use of supporting evidenceState how this cure would help to ease the suffering of cancer patients.What is an Essay?This refers to the academic writing that is meant to inform, educate, entertain, or persuade a reader about a particular point of view.
Hence, we can see that based on the fact that you are writing an essay about the cure for cancer, it is important that you follow the above-mentioned tips to write a good essay.
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Calculate the 12-hour output for this
patient: 645 mL urine, 50 mL
drainage from JP drain #1, 66 mL
drainage from JP drain #2
The Urine output of the patient for the 12-hour period is 63.4 mL/hour.
What is urine output?Urine output is the amount of urine per hour produced by a patient.
To determine the urine output of a patient, the following formula is used:
Urine output = volume of urine produced/time elapsedTotal urine output = 645 + 50 + 66 = 761 mL
Total time = 12 hours
Urine output = 761 mL/12 hr
Urine output = 63.4 mL/hour
In conclusion, the urine output of the patient is determined from the ratio of the total urine output and time taken.
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What is special about animals that allows them to be mobile in some way?
They are multicellular.
Their brains are bigger, so they can move.
Their cells lack a rigid cell wall.
They have fur which helps them to run.
The lack of a rigid cell wall is an animal feature that allows them to be mobile in some way.
What is the cell wall?The cell wall is a cellular structure (organelle) that provides support to plant and fungi cells.
Animals are mobile because they do not have this rigid structure that otherwise will hamper their motion.
In conclusion, animals cells do not have cell walls which helps them to be mobile.
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If a population doubles in the course of 100 years, its growth rate would be approximately ________%.
Answer:
The population increases at a rate of approx. 0.70% per year.
Explanation:
The population (P) as a function of time (t) is as follows:
[tex]P = P_0(1 + i)^t.[/tex]
Given that the population doubles in 100 years, let's calculate [tex]i[/tex]:
[tex]2P_0 = P_0(1+i)^{100}\\\\(1+i)^{100} = 2\\\\1 + i = 2^{\frac{1}{100}}\\\\1 + i = 1.0069556\\\\i = 0.0069556[/tex]≅ [tex]0.70[/tex]%
Genetic modification is used to develop plant and animal species that have new traits. If genetically modified plants are introduced in a natural habitat, they may act in a manner similar to an invasive species. What could be the best solution to prevent them from becoming an invasive species?
a.
Use pest control
b.
Plant more native trees.
c.
Develop plants that are unable to reproduce.
d.
Use more fertilizer to promote the growth of genetically modified plants.
The best solution to prevent them from becoming an invasive species is to develop plants that are unable to reproduce. Thus, the correct option is C.
What are Invasive species?Invasive species may be defined as the group of organisms that are not indigenous, or native, to a particular area.
If such genetically modified plants have the characteristics of reproduction, then they produce offspring which are extremely different from the native population. This in the future leads to the process of speciation if can not be regulated in a limited manner.
Therefore, the correct option for this question is C.
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Phenylthiocarbamide (PTC), also known as phenylthiourea (PTU), has the unusual property that it either tastes very bitter or is virtually tasteless, depending on the genetic makeup of the taster. There is a single gene which codes for a protein found in our tongues. PTC will bind with the protein if it present and a person will taste it. If the protein is not present, PTC will not bind and a person cannot taste it. The ability to taste PTC is often treated as a dominant genetic trait. The dominant allele, T, causes a person to be able to taste PTC, and the recessive allele is represented as t. Assume that a population is in Hardy-Weinberg equilibrium and 16 individuals out of 100 are unable to taste PTC.
What are the allele frequencies of T and t in this population?
A. The allele frequency of T is 0.80, and the allele frequency of t is 0.20
B. The allele frequency of T is 0.84, and the allele frequency of tis 0.16.
C. The allele frequency of T is 0.00, and the allele frequency of t is 0.40
D. The allele frequency of T is 0.50, and the allele frequency of t is 0.50.
Answer:
B. The allele frequency of T is 0.84, and the allele frequency of t is 0.16.
Explanation:
The Hardy-Weinberg equation is:
p2 + 2pq + q2 = 1
Where:
p = the frequency of the dominant allele
q = the frequency of the recessive allele
1 = the total number of alleles
Given that 16 individuals out of 100 are unable to taste PTC, we can calculate that the frequency of the recessive allele, q, is 0.16. We can then use the Hardy-Weinberg equation to solve for the frequency of the dominant allele, p:
p2 + 2pq + q2 = 1
p2 + 2p(0.16) + (0.16)2 = 1
p2 + 0.32p + 0.0256 = 1
p2 + 0.32p - 0.9144 = 0
(p + 0.32)(p - 2.84) = 0
p = -0.32 or p = 2.84
Since the allele frequencies must add up to 1, we know that p cannot equal -0.32. This leaves us with p = 2.84. Therefore, the allele frequency of the dominant allele is 2.84, and the allele frequency of the recessive allele is 0.16.
Craters on the Moon were created by:
equipment from human explorations.
satellites.
meteorites.
comets.
5x5 the endmonwf fee I'd done lost wvnssjssi
What percentage of the body’s blood is made up by water?
83%
22%
73%
25%
Answer:
The human male's body is made of around 60% water, while human females are made of 55%. The closest answer you have here is 73.
Answer:
this is the liquid portion of blood plasma is 90% water makes up the more than half total blood volume other 10% is protein molecules included analyse clothing agents is hum system compounds plus other body institutional such as vitamins and hormones
Which of these statements describes Earth's atmosphere?
It includes all living and once-living things.
It is a mixture of nickel and iron, below the mantle.
It is all the salt and fresh liquid water on Earth's surface.
It is the mixture of gases that surrounds Earth’s Atmosphere 
Hello!
The statement which best describes Earth's atmosphere :
It includes all living and once-living things.
These include everything from humans to trees.
which statement describes two organ system working together to make an aimal run away from danger
Answer:
The nervous system sends signals that cause the adrenal glands to release hormones. This statement describes two organ systems working together to make an animal run away from danger
How do adrenal glands and nervous system work together?
The pituitary and adrenal glands create hormones that govern growth, stress, sexual function, and chemical equilibrium in the body.
The hormones adrenaline and norepinephrine, which are responsible for human stress reactions, are produced by the adrenal glands.
Catecholamines are adrenal medulla hormones that also act as traditional neurotransmitters in the autonomic nervous system.
The adrenal medulla is neural tissue that has been changed, and its activity is controlled by a direct neural input.
As a result, the medulla works similarly to a sympathetic ganglion.
Explanation:
pls give brainliest
Some hormones bind to ion channels on neurons and cause them to open. This would be an example of a:
a. ligand-gated channel
b. mechanically gated channel
c. voltage-gated channel
d. none of the above are correct
The hormones that bind to ion channels on neurons and cause them to open represent an example of ligand-gated channels (Option a).
What are ligand-gated channels?Ligand-gated channels are specific receptors on the cell membrane that bind to different molecules.
This binding can cause a concomitant cellular response such as activating a phosphorylation-associated signaling pathway.
In conclusion, hormones and their receptors are an example of ligand-gated channels (Option a).
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Which sentence best explains a possible result of climate change on earth
A. In the northern hemisphere, ideal conditions for farming will shift
north.
OB. Extreme heat, flooding, and drought will each increase crop yields.
C. Cold regions will become less appealing to tourism.
D. Invasive plant species will likely lose habitat.
Identify three ways humans contribute to extinction
1. Habitat destruction, harvesting, and pollution
2. Habitat destruction, reclamation, reproduction
3. Captive breeding programs, game preserves, zoos
4. All of the above
Answer: Human activities that influence the extinction and endangerment of wild species fall into a number of categories: (1) unsustainable hunting and harvesting that cause mortality at rates that exceed recruitment of new individuals, (2) land use practices like deforestation, urban and suburban development, agricultural cultivation, and water management projects that encroach upon and/or destroy natural habitat, (3) intentional or unintentional introduction of destructive diseases
Explanation:
Write a letter to congressman about climate change
Answer:
I don't know this sorry
I read in class 8
I think this question is from class 6
Ling made a study chart for science class.
Which organelle accurately completes the chart?
lysosome
cell wall
chloroplasts
endoplasmic reticulum
Lysosomes have lytic enzymes, the cell wall gives support, chloroplasts act in photosynthesis, and the endoplasmic reticulum act during protein and lipid synthesis.
What is the lysosome?The lysosome is an organelle that contains hydrolytic enzymes used to break proteins, whereas the cell wall is a structure that provides physical support to plant cells.
Chloroplasts are plant organelles used during photosynthesis and the endoplasmic reticulum acts during the production of proteins and lipids.
In conclusion, lysosomes, chloroplasts (plant and algae) and endoplasmic reticulum are eukaryotic organelles with diverse functions, whereas the cell wall provides structural support to plant and fungi cells.
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Answer:
lysome
Explanation:
am big smart, trust
what sugar is found in an atp molecule
The base of an adenine molecule is made of ribose sugar molecules