Answers
Answer:
The answer is k = −11
Explanation:
f(−2)= 0
f(−2)= − 8 − 24 − 2 k + 10 = 0
2 k = -22
and finally; k= −11
Related Questions
What is Chlorophyll and why do plants need it?
Answers
Answer:
The role of chlorophyll in photosynthesis is vital.
Chrolophyll, which resides in the chloroplast of plants, it is the pigment that gives plants their green color, and it helps plants to create their own food through photosynthesis.
-TheUnknownScientist 72
1. Alpha-gamma coactivation
A. is critical for preventing contraction of an antagonist muscle when the other muscle is contracting during voluntary
movement
B. is critical for maintaining the appropriate tension on the spindle organ during contraction of extrafusal fibers.
C. is the process by which Ca2+ is released from the sarcolemma when nicotinic acetylcholine receptors are activated
at the neuromuscular junction
none of the above
Answers
The correct option is B.
Alpha gamma coactivation is critical for maintaining the appropriate tension on the spindle organ during contraction of extrafusal fiber.
Alpha‐gamma coactivation is a process that the muscle use to keep or maintains it's length. It works in a way that when the muscle contracts or relaxes , the sensory neuron send the information to the central nervous system about what happen to the muscle. This lead the intrafusal and extrafusal fibers to contract.
Alpha-gamma coactivation enhance the muscle spindles ensure its sensitivity to stretch the muscle lengths.
Therefore, Alpha gamma coactivation is critical for maintaining the appropriate tension on the spindle organ during contraction of extrafusal fiber.
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ASTRONOMY NEED HELP FASTTTT
Which law states that when an object gets smaller, the velocity of its spin increases
proportionally to its size?
Answers
Answer:
casue it's lighter
Explanation:
If proteins contain mutations, the proteins often do not maintain the proper
shape and are unable to perform their functions. Properly functioning
proteins are essential to maintaining healthy organisms.
Which statement describes the overall consequence of proteins containing
mutations like those described in the passage?
OA.
Wastes will build up and will be reassembled to build new proteins.
OB.
Wastes will build up, and Mallory bodies will accumulate in the
liver.
OC.
Wastes will build up in cells and will eventually be excreted from
each cell.
OD.
Wastes will build up in vital organs, and the organism will
experience disease.
Answers
The statement 'wastes will build up in vital organs, and the organism will experience disease' describes the overall consequence of proteins containing mutations. Defective proteins contain mutations.
A mutation is any alteration in the nucleotide (DNA) sequence of the genome of an organism.
A non-silent mutation can produce a change in the amino acids encoded by the nucleotide gene sequence, thereby modifying the tridimensional (3D) structure of the resulting protein.
In consequence, mutated proteins may be defective and accumulate as waste in a given organ/cell where they are expressed to perform specific functions.
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Describe a hypothetical result of the fluctuation test that would have supported the hypothesis that mutations occur in response to an environmental challenge, and explain how this result was different from the observed result described above
Answers
In order to support the hypothesis that mutations occur in response to an environmental challenge, the experiment in question would have to show an increase in mutation rates shortly after the environmental challenge was introduced.
When we test a hypothesis, we perform an experiment and gather data over the course of the testing. In order to obtain evidence that supports a hypothesis, we have to ensure that only one variable is changing and be sure to repeat the experiment to confirm the values measured.
Taking this into account, a hypothetical result of the fluctuation test that would support the hypothesis of mutations in reaction to environmental challenges would be to measure a spike in mutation rates in the generation following an environmental challenge, and then continue to do so with future post-challenge generations.
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Name the three common states of matter on earth.
Which states of matter have a set shape? Explain why this is, based on the animations you observed for the different states of matter.
Which states of matter have a set volume? Explain why this is, based on the animations you observed for the different states of matter.
The boiling point is the temperature at which a liquid substance will turn to vapor, and also the temperature at which vapor will condense to a liquid. The boiling point of ethanol is about 80°C, and the boiling point of water is about 100°C.
What can you conclude about the intermolecular forces in water and ethanol?
Do you predict water freezes at a higher temperature or at a lower temperature than ethanol?
Recall how different Van der Waals attractions and how ionic charges changed the movement of atoms in the animation. Do you think that Van der Waals attractions or ionic charges are stronger? Why?
1. solid, liquid and gas
2.Solid can move but gas and liquid is more flexible than solid. Solid has a fixed volume while liquid and gas takes the volume of its container. Solid stays in one place while gas and liquid is flexible.
3.Among the 3 state, solid has a fixed volume while liquid takes the volume of its container. When gas is compressed, it takes the volume of its container likewise.
Answers
the answer is solid, liquid and gas
Answer:
1. Liquid, Solid, Gas
2. Solid has a set shape. Solid can move but gas and liquid is more flexible than solid.
3. Solid has a fixed volume while liquid and gas takes the volume of its container. Solid stays in one place while gas and liquid are flexible.
4. A. The stronger the intermolecular forces in a liquid the higher the boiling point. Therefore, water has a stronger intermolecular force than ethanol.
B. Water molecules are more attracted to each other than ethanol (alcohol) molecules, because water has more hydrogen atoms bonded to oxygen. ... So, that's why alcohol has a much lower freezing point
5. Ionic charges are stronger.
Covalent bonds are known to have the strongest and most stable bonds since they go deep and into the inter-molecular state. A diamond is an example of a compound with this characteristic bond.
Ionic bonds are the next strongest molecular bond following covalent bonds. This is due to the protons and electrons causing an electro-static force which results to the strong bonds. An example would be Sodium Chloride (NaCl), which when separated is Na⁺ and Cl⁻.
Van der Waals forces, also known as Dispersion forces, are the weakest type of molecular bonds. They are only formed through residual molecular attractions when molecules pass by each other. It doesn't even last long due to the uneven electron dispersion. It can be made stronger by adding more electrons in the molecule. This kind of molecular bonds appear in non-polar molecules such as carbon dioxide.
Explanation:
These are the answers based on the reading material provided by James Madison High School
What effect does viscosity have on blood flow?
A.) Low blood viscosity leads to slower blood flow.
B.) High blood viscosity leads to slower blood flow.
C.) Low blood viscosity increases resistance and leads to fast blood flow.
D.) High blood viscosity decreases resistance and leads to fast blood flow.
Answers
Answer:
B
Explanation:
High blood viscosity leads to slower blood flow. Therefore, option B is correct.
What is viscosity?Viscosity is a measure of a fluid's resistance to flow. It describes the internal friction between different layers of fluid as they move relative to one another. In general, fluids with high viscosity flow more slowly than fluids with low viscosity.
Viscosity can affect blood flow by altering the resistance to blood flow in blood vessels. Blood viscosity is influenced by the thickness and stickiness of blood, which is determined by the concentration of various proteins and cells in the blood.
When blood viscosity is high, the blood is thicker and flows more slowly, which can increase the resistance to blood flow in blood vessels. Therefore, option B is correct.
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© 1. What type of cell is this? What characteristics helped you decide the type of cell? (Identify form/structure.) What is this cell's function?
Answers
Answer:
nerve cell
Explanation:
it helps in the nervous parts
it comprises of neuron,dendrides and axons..
The given cell is the nerve cell, as the structure has a single cell body and dendrites that are coming out of the cell body, and it is important for the body as the function is to send information.
What is the work of the nerve cell in the animal body?In animals, nerve cells are the primary cells that carry information throughout the body and are responsible for transmitting information in the form of electrical and chemical signals, and each neuron has three main parts: the cell body, dendrites, and axons, here the cell body contains the cell's nucleus and other organelles; dendrites are branching extensions of the cell body that receive signals from other neurons or sensory cells; and axons are long structure that transmit signals to other neurons.
Hence, the given cell is the nerve cell, as the structure has a single cell body and dendrites that are coming out of the cell body, and it is important for the body as the function is to send information.
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The processes by which a molecule can be extracted and processes by which a molecule can be isolated
Answers
Answer:
Extraction is the first step to separate the desired natural products from the raw materials.
solvent extraction, distillation method, pressing and sublimation
Isolation can be achieved from polyherbal formulation but it will be rather difficult and would involve complex purification steps .
Explanation:
Have a great day!
The DNA double helix is antiparallel. This means that the two strands…
Answers
Answer:
d
Explanation:
antiparallel is like one strand starts with 5' prime and ends with 3' prime and it's complimentary strand is the the opposite with 3' prime on top and 5' prime down
PLEASE HELP!!! WILL MARK AS BRAINLIEST!!! D:
A. SICKLE CELL ANEMIA: GENETICS AND EVOLUTION
Circle the mutation in DNA of the sickle-cell beta-globin gene fragment in the table below:
Wild-type beta-globin gene fragment
C A C G T A G A C T G A G G A C T C
Sickle-cell beta-globin gene fragment
C A C G T A G A C T G A G G A C A C
Transcribe beta-globin DNA into mRNA. Note: DNA is already arranged in triplet sets (below).
Translate mRNA codons into amino acids of hemoglobin protein sequence using the chart on page 3.
Wild-type beta-globin gene fragment
C A C G T A G A C T G A G G A C T C
Transcription produces mRNA fragment:
Translation produces wild-type beta-globin polypeptide fragment:
Sickle-cell beta-globin gene fragment
C A C G T A G A C T G A G G A C A C
Transcription produces mRNA fragment:
Translation produces mutant beta-globin polypeptide fragment:
Answers
In this example an adenine replaces a thymine. Wild-type mRNA GUGCAUCUGACUCCUGAG/ Protein Val-His-Leu-Thr-Pro-Glu. Mutated mRNA GUGCAUCUGACUCCUGUG/ Protein Val-His-Leu-Thr-Pro-Val.
--------------------------
Mutations are changes that occur in DNI nucleotide sequences that introduce new variants.
There are different types of mutations. In the exposed example, the last thymine from the Wild-type beta-globin gene fragment is replaced by an adenine in the Sickle-cell beta-globin gene fragment. The other bases remain equal.
Wild-type gene fragment ⇒ C A C G T A G A C T G A G G A C T C
Sickle-cell gene fragment ⇒ C A C G T A G A C T G A G G A C A C
Wild-type beta-globin gene fragment
TranscriptionTranscription occurs in the nucleus. In RNA uracil replaces thymine.
While growing mRNA molecule,
adenine pairs uracil, thymine pairs adenine, and guanine pairs cytosine.DNA ⇒ C A C G T A G A C T G A G G A C T C
mRNA ⇒ G U G C A U C U G A C U C C U G A G
TranslationTranslation occurs in the cytosol. mRNA codons codify for amino acids.
Codons have been separated by a space.
mRNA ⇒ G U G C A U C U G A C U C C U G A G
Protein ⇒ Valine - Histidine - Leucine - Threonine - Proline - Glutamine
Sickle-cell beta-globin gene fragment
TranscriptionDNA ⇒ C A C G T A G A C T G A G G A C A C
mRNA ⇒ G U G C A U C U G A C U C C U G U G
Translation
mRNA ⇒ G U G C A U C U G A C U C C U G U G
Protein ⇒ Valine - Histidine - Leucine - Threonine - Proline - Valine
---------------------------------------
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If you were to hike up Mount Kilimanjaro in Tanzania, you would pass through several habitats, including savanna at the base, forest on the slopes, and alpine tundra near the top. Explain how such diverse habitats can be found at one location near the equator.
Answers
Given our knowledge of ecosystems, we can confirm that the diverse habitats found at one location near the equator are due to the changes in elevation.
The effects that elevation has on the climate are what enable the diversity of habitats on a single mountain. As elevation increases, atmospheric pressure decreases. This decrease in pressure then causes a decrease in temperature.
The base of the mountain is a dry and hot habitat, while as we travel upwards towards higher elevation we see a transition in habitats into a more tropical forest style and then eventually an alpine tundra, further proving the claim that elevation lowers the temperature.
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Examine the model here showing the Milky Way galaxy. Which statements are accurate regarding the galaxy? Select all THREE that
apply.
Answers
Answer:
lame answer
Explanation:
what is the antilog calculation for a measurement of 3.85cm
Answers
Answer:
bbbbbbbbb
Explanation:
hggggggg
What are the importances of Dissacharides
Answers
Answer:
Dissacharides are very important for many things in the body. They provide fuel for the cells, which ultimately determine our quality of life since their fuel regulates blood glucose levels, erythrocyte membrane stability, erythrocyte osmotic fragility and immunological competence.
An increase in lipid oxidation is seen when glucose intake is increased through high dissacharide consumption and may be helpful to individuals with non-insulin dependent diabetes mellitus (NIDDM) type 2D who have lipid disorders such as hyperlipidemia that use dissacharide consumption change lipid levels and decrease their chances of developing atherosclerosis. This also helps people with NIDDM type 2C get rid of
Explanation:
The carbon dioxide that is used by plants ________
1. Is combined with oxygen to make sugar molecules
2. Is absorbed through the roots of plants
3. Comes from the air
4. Is actually a source of food
Answers
Answer:
3
Explanation:
because carbon dioxide can be found in air
Answer:
The answer is 3.) Comes from the air
Explanation:
Since in this question, were talking about carbon dioxide, there is only one place where the plant can take the carbon dioxide. And that one place is the air.
I hope this helped!
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Have a great day/night/afternoon! :D
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1. Two cats are mated. One of the parent cats is long-haired (recessive allele). The offspring of the two cats are: two short-haired and three long-haired kittens. What does the second parent look like (phenotype), and what is its genotype? Make a punnet square.
Answers
Answer:
2 Hh- short-haired kitten
2hh- long-haired kitten
Explanation:
Parental phenotypes: long-haired short-haired
Parental genotypes: hh × Hh(second parent)
Genotypes of F1 generation: Hh, hh, Hh, hh
2 Hh- short-haired kitten
2hh- long-haired kitten
Why do you need control samples with the known normal, carrier, and sickle cell
alleles to complete the analysis?
Answers
Answer:
Explanation: All experiments must have an controlled group to show the differences
Question 1
Which of the following explains how scientists know that current global warming is related to human activities?
Atmospheric carbon has increased much faster than in the past.
There were no greenhouse gases in the atmosphere in the past.
There was more methane in the atmosphere 6,000 years ago.
There is more water vapor in the atmosphere today than the past.
Question 2
Which of the following is not a future impact of global warming?
Sea level falling
Less freshwater
Human migration
Disrupted ecosystems
Answers
Answer:
First answer it might be the first one I do not know if it is correct .Second answer The last one d
Explanation:
Because if even one part of the ecosystem collapse the hole ecosystem will collapse in generation genius website there is a video about it go check it out
what is Baltimore classification of viruses
Answers
The Baltimore classification of viruses is a system developed by David Baltimore, allowing for the naming and grouping of RNA or DNA viruses according to their modes of replication.
ANSWER BY AN AI
Answer:
jhiuyhtfgkuguftmff
Explanation:
Write the definition of evaporation.
Wrong answer will be reported.
pls Quick!
Answers
Answer:
hope it helps
Explanation:
evaporation is the process of a liquid changing from liquid to gas and can happen in a small and large scale :)
Answer:
The changing of a liquid into vapours or gas is called evaporation. Evaporation is used to obtain a solid substance that has dissolved in water or any other liquid. The dissolved substance is left as a solid residue when all the water has evaporated.
quseion of haramaya university
Answers
Answer:
whay
Explanation:
Label the plant cell diagram below.
1.
2.
3.
4.
5.
6.
7.
Answers
Answer:
Here you go. Plz mark BRAINLIEST
Explanation:
Attached answer below!
The state of Georgia has a yearly energy surplus.
Question 8 options:
a) True
b) False
Answers
Answer: A
Explanation:
True state of Georgia has a yearly energy surplus.
Does Georgia use more energy than it generates?
Georgia is among the top 10 electricity-producing states, the state typically uses more power than it generates.
What energy source does Georgia use?Nearly 75% of Georgia's electricity generation comes from hydro production (75.3% in 2019), with the remainder produced from natural gas and from a 20.7 MW wind power plant .
Hence, correct option is :True
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Which statement describes how basic DNA technology is used to construct recombinant DNA molecules? (10 points)
A. Scientists use a gel-filled electrical chamber during gel electrophoresis to isolate DNA fragments.
B. Scientists use restriction enzymes to cut DNA molecules and ligation to paste DNA fragments together.
C. Scientists use heat and bacterial
transformation to add novel DNA into bacterial cells.
D. Scientists use high temperatures to separate strands of DNA molecules during polymerase chain reaction.
Answers
The statement 'Scientists use restriction enzymes to cut DNA molecules and ligation to paste DNA fragments together' describes the construction of recombinant DNA molecules. This technology is called recombinant DNA.
Recombinant DNA is a genetic engineering approach by which scientists uses specific enzymes to cut and paste nucleotide (DNA) target sequences of interest.
The enzymes that recognize and cut DNA are called restriction enzymes, while enzymes that ligate DNA fragments are called ligase enzymes.
Recombinant nucleotide sequences are placed into specific vectors (e.g., a plasmid) that transport the DNA in a host cell in where this sequence is expressed as protein.
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Can someone help cause i only have 10 mins thank you
Answers
Answer:
All cells come from pre-existing cells
Explanation:
Que is in attachment, ans with Explaination.
Answers
Answer:
The undigested, unabsorbed substances called faeces enters into the caecum of the large intestine through ileo-caecal valve, which prevents the back flow of the faecal matter. It is temporarily stored in the rectum till defaecation.
hope it helps you
btw ur intro pls
Feces generally enters into the caecum of the large intestine through the ileocaecal valve
Digestion
Most of the digested foods are absorbed in the small intestines of humans.
Undigested foods, otherwise known as feces are not absorbed but are instead moved into the caecum of the large intestine through a structure known as ileocaecal valve.
The valve prevents the backflow of the feces into the small intestine and the feces are stored in the rectum pending the time they are defecated.
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Cell researchers are investigating the role of cyclins on mitosis and cell division. They notice that cyclins build up, cause the cell to progress through the cell cycle, then break down, thus ending the different stages of the cell cycle. A failure of the cell to break down which cyclin would most directly lead to increased cell division?
A) Cyclin A
B) Cyclin B
C) Cyclin D
D) Cyclin E
Answers
A) Cyclin A
B) Cyclin B
C) Cyclin D
D) Cyclin E
The answer is: M-phase cyclins form M-CDK complexes and drive the cell's entry into mitosis; G1 cyclins form G1-CDK complexes and guide the cell's progress through the G1 phase; and so on. ... Specific enzymes break down cyclins at defined times in the cell cycle. When cyclin levels decrease, the corresponding CDKs become inactive.
The inability of the cell to break down cyclin D would most directly lead to increased cell division.
What is cell division?Cell division is the process by which cells in the body divide their content and duplication of the chromosomes to produce new daughter cells.
In the cell cycle, proteins known as cyclins are required.
Cyclin D is required at the initiation and termination stage of cell division.
Therefore, based on the cell cycle diagram, inability of the cell to break down cyclin D would most directly lead to increased cell division.
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if the superior colliculi were damaged what function would be impaired
Answers
Answer:Severing the splenium of the corpus callosum, which has to be done to reveal the superior colliculi, had no effect on the movement threshold. But when the superior colliculi were damaged in addition, there was an initial substantial impairment in the detection of movement and a smaller but permanent elevation in the threshold.
Explanation:
If a man with type AB blood conceives a child with a woman with type O blood, what are their chances of producing a type A baby?
Answers
Answer:
A or B
Explanation: