Answer:
2- this scale rates an earthquake according to how much damage it causes
Mercalli scale rates an earthquake according to how much damage it causes. So, the correct option is B.
What is Mercalli scale?The Mercalli scale was invented by Giuseppe Mercalli in 1902, is not regarded as a scientific method for measuring the strength of an earthquake.
The Mercalli scale is used in the observations of people who experienced an earthquake to estimate the intensity, which is measured based on the degree of impact or damage to humans, objects, buildings, and other man-made things.
The scale typically measures the intensity of an earthquake using data such as effects on the Earth, the environment and humans that help predict whether an earthquake was fatal.
Thus, Mercalli scale rates an earthquake according to how much damage it causes. So, the correct option is B.
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Oncologists are doctors which specialize in diagnosing and treating cancer. Certain cancers have markers on the surface of affected cells. Which microscope would be the best choice for viewing these cell markersq
Answer:
I'm pretty sure it is scanning electron microscope
Explanation:
Oncologists are doctors which specialize in diagnosing and treating cancer. Certain cancers have markers on the surface of affected cells. Scanning electron microscope is used for viewing these cells.
what is scanning electron microscope ?Microscopes can be used to view minute specimens and different types of microscopes are used for various purposes which include compound microscope, transmission electron microscope, dissection microscope, scanning electron microscope etc.
Scanning Electron Microscope (SEM) is an electron microscope which scans surfaces of microorganisms and uses a low energy based beam of electrons.
The Principle behind the working of the Scanning Electron Microscope include the transmission Electron Microscope and it uses transmitted electrons and emitted electrons.
This microscope produce three-dimensional images of a specimen by using focused beam of electrons, generate different signals and it is used for three-dimensional image surfaces at the atomic level where the good resolution is to be 0.01 nm depth resolution and 0.1 nm lateral resolution.
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2. Which 2 organelles are found in BOTH plants and animals? *
Answer:
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.
Explanation:
Why do planets close to the sun have thin atmospheres and the planets far away from the sun have thick atmospheres. Use what you know about the nebular theory.
Answer:
There are two primary factors: size and distance from the Sun. Gravity helps planets and moons to hold on to their atmospheres, so small planets/moons such as Mars and the Moon have thin atmospheres. The reason why the outer planets are larger is probably down to two major factors. The first is simply the amount of material available which may be accreted to a planet. Clearly, the further away from the Sun, the longer the orbit (twice as far means an orbit twice the physical length).
Explanation:
Hydrogen bonds form _______
A. to hold one molecule of water together, bonding one hydrogen atom and two oxygen atoms.
B. between the positively charged oxygen of one water molecule and the negatively charged hydrogen of another water molecule.
C. between the negatively charged oxygen of one water molecule and a positively charged hydrogen of another water molecule.
D. to hold one molecule of water together, bonding one oxygen atom and two hydrogen atoms
Answer:
C. between the negatively charged oxygen of one water molecule and a positively charged hydrogen of another water molecule.
Explanation:
The swallowing phase where the velopharynx closes forcefully and larynx completely closes at 3 levels is the...
a. Tongue preparatory phase
b. Pharyngeal transport phase
c. Oral transport phase
d. Laryngeal transport phase
Answer:
b. Pharyngeal transport phase
Explanation:
During the pharyngeal phase, the vocal folds close to keep food and liquids from entering the airway.
Swallowing the velopharynx closes forcefully and the larynx completely close at the level of the pharyngeal transport phase this action seal the airway passage, hence option b is correct.
What is swallowing ?According to where the bolus is located, the swallowing process is often split into oral, pharyngeal, and esophageal phases. When consuming solid food vs drinking liquid, the food moves differently through the oral cavity and into the oropharynx.
The tongue closes the oropharynx while it is in the pharyngeal phase. The proximal pharyngeal wall and soft palate serve as a barrier to the nasopharynx.
The laryngeal entrance is sealed off by the vocal cords and arytenoids, and the epiglottis swings down to cover the laryngeal vestibule. These acts close up the pharyngeal cavity's airway.
Therefore at 3 levels, the velopharynx closes forcefully and the larynx completely closes in the pharyngeal transport phase action to seal the airway passage, hence option b is correct.
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By their experimentation using the Neurospora fungus, Beadle and Tatum were able to propose the far-reaching hypothesis that ________
Answer:
one gene produces a specific enzyme
Explanation:
The one gene-one enzyme hypothesis states that one gene specifies the production of a specific enzyme. This concept is based on Beadle and Tatum's experiment. Beadle and Tatum irradiated Neurospora spores with X-ray in order to induce mutations, then they crossed mutant strains with non-irradiated Neurospora strains. Finally, Beadle and Tatum observed that some mutant spores would not grow without addition of arginine (Arg) residues to the culture, thereby suggesting that each gene is responsible for the synthesis of one enzyme.
PLEASE HELP GENETIC INFORMATION
Answer:
No-1st
No-2nd
No-3rd
Yes-4th
No-5th
Explanation:
No to 1st one
No to 2nd one
No to 3rd one
Yes to 4th one
No to 5th one
No means DON'T PICK THAT ONE
Yes means pick that one
2. What does "gibbous" mean? •increasing in apparent size •decreasing in apparent size •larger than half, smaller than full •smaller than half larger than new •about half
Answer:
larger than half
increasing and decreasing in apparent size
Explanation:
Having the observable illuminated part greater than a semicircle and less than a circle. It always wax and wane
gibbous=3/4
When you sweat a lot the amount of water in your blood can drop. Your cells have to maintain a certain level of water and salt in order to function properly. Which systems work together to help maintain homeostasis when you are dehydrated?
Group of answer choices
The nervous system sends a message to the musculoskeletal system to increase the amount of sweat produced.
The nervous system sends a signal to the digestive system to reduce the absorption of water from the digested food.
The respiratory system breathes faster sending a message to the nervous system to reduce heat.
The circulatory system’s lack of water causes the nervous system to signal the excretory system to reduce the amount of water it takes from the body to produce urine.
Answer:
The circulatory system’s lack of water causes the nervous system to signal the excretory system to reduce the amount of water it takes from the body to produce urine.
Explanation:
endocrine, nervous, and muscular systems work together and maintain temperature homeostasis.
Small cells have a higher _______ to volume ratio. That means for a given Small cells have a higher volume, there is a lot more cell membrane.
When the concentration of molecules is the same throughout the space the molecules
occupy, the molecules are in
Explanation:
Diffusion will eventually cause the concentration of molecules to be the same throughout the space the molecules occupy, when they will be in equilibrium.
What do the dotted lines, indicated with the arrow, represent in the DNA model above?
The junctions of codons between individual strands
The bond between deoxyribose molecules and phosphates
The monomers that make up a polymer
The hydrogen bond between complimentary nucleotides
Answer:
The hydrogen bond between complimentary nucleotides
Explanation:
I took the test
In the DNA model, the dotted line represents the hydrogen bonds between the nucleotides.
What is DNA?
DNA is a hereditary material which is present in human beings as well as all other living organisms. Every cell which is present in an organism's body has DNA which is the same. Most of the DNA is situated in the cell's nucleus and small amount of it can be found in the cell's mitochondria as well.
Information which is stored in DNA is stored as codes made up of four chemical bases namely, adenine, thymine , cytosine and guanine.Human DNA consists of 3 billion bases .The order of the bases determines information which is required for building and maintaining an organism.
DNA bases are capable of pairing up with each other. Adenine pairs with thymine and guanine pairs up with cytosine .Each base is also attached to a sugar molecule and a phosphate group. A base, phosphate sugar are together called as nucleotides.
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Ice wedging into the rock and breaking and crAcking the rock and soil
Answer:
Ice wedging is a process that happens when water gets into the cracks of concrete, stones, other forms of the Earth, and freezes. When the water freezes, it expands and pushes the rock from the crack which either separates and turns it into two rocks, or the rock might form together again and just be a larger rock. This process happens in Winter and usually finished in Spring when the ice between the rocks melt. I have described the process of ice wedging for you.
What is the relationship between snails and Elodia
Answer:
The relationship between snails and elodea is symbiotic in that the snail eats algae and produces carbon dioxide. The elodea takes in the carbon dioxide and, through photosynthesis, creates oxygen, which the snail and every living thing in the tank uses to breathe.
Explanation:
hope it helps you!!
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Rachal Corporation produces and sells a single product whose selling price is $150.00 per unit and whose variable expense is $57.00 per unit. The company's monthly fixed expense is $381,300.
Required:
a. Assume the company's monthly target profit is $9,300. Determine the unit sales to attain that target profit. Show your work!
b. Assume the company's monthly target profit is $18,600. Determine the dollar sales to attain that target profit. Show your work!
Answer:a) if the company's monthly target profit is $9,300, 4,200 units sales is needed
b) if the company's monthly target profit is $18,600, 4,300 units sales is needed
Explanation:
Using The Contribution Margin Approach:
Contribution Margin = Sales expense - variable expense
=$150.00 - $57.00
=$93
Contribution Margin Ratio= Contribution Margin/ sales expense x 100
=93/150 x 100
= 62%
Assume the company's monthly target profit is $9,300.
A) Sales to attain the target profit = [(Fixed expenses + Target profit) ÷ Contribution Margin ratio]
= ($381,300. + $9,300) ÷ 0.62
$390,600 ÷ 0.62
= $630,000
No. of units to be sold =Sales to attain the target profit/ selling price
$630,000/$150.00
=4,200 units
Assume the company's monthly target profit is $18,600
B) Sales to attain the target profit = [(Fixed expenses + Target profit) ÷ Contribution Margin ratio]
= ($381,300. + $18,600 )÷ 0.62
$399,900 ÷ 0.62
= $645,000
No. of units to be sold =Sales to attain the target profit/ selling price
$645,000/$150.00
=4,300 units
During which period is the substance changing state?
A. During the time labeled C, when the temperature increases
sharply.
B. During the time labeled E, when the temperature increases for a
third time.
C. During the time labeled A, when the temperature first starts to
increase.
D. During the time labeled D, when the temperature stays the same.
SIDANT
Answer:
[tex]\boxed {\boxed {\sf D. \ During \ the \ time \ labeled \ D, \ when \ the \ temperature \ stays \ the \ same}}[/tex]
Explanation:
Phase changes have to happen at a specific temperature. During a phase change, the energy is used to make the change happen, instead of raising the temperature.
On a graph, a constant slope, or in this case temperature, is a flat line. On this graph, the flat lines are at B and D.
There is no answer including B, but there is for D.
Choice D: During the time labeled D, when the temperature stays the same is correct.
Which of the following is NOT a statement from the cell theory?
O All cells come from pre-existing cells.
•All cells require water for survival.
•All living things are composed of cells.
•Cells are the basic unit of structure and function of living things.
Answer:
The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.
Therefore, B is the answer.
"All living cells require water for survival" is NOT a statement from the cell theory.
All cells require water for survival is not a statement from the cell theory.
What is cell theory?The cell theory is a fundamental principle in biology that states that all living organisms are composed of one or more cells and that the cell is the basic unit of life. The theory was first proposed by German scientists Matthias Schleiden and Theodor Schwann in 1839, and later refined by Rudolf Virchow in 1855. The three main principles of the cell theory are:
All living organisms are composed of one or more cells.The cell is the basic unit of life and structure for all living organisms.All cells come from pre-existing cells through the process of cell division.The cell theory is considered one of the most important and enduring concepts in biology, and it forms the foundation for understanding the structure and function of cells and the organization of life on Earth.
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The soft parts of animals which have become fossils are usually destroyed by
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#teamtrees
Please support the cause. If we all plant a tree, just 1 each, even 1 per family, it will save us from the future that global warming will bring us without these trees. plant a tree today and say to yourself, "wow i just planted a tree for a very important cause, and i saved someone's life today!"
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Answer:
ok
Explanation:
Answer:
Well said m8. POGCHAMP
Explanation:
#teamtrees #WAP (Water And Plant) #ELM (Every Life Matters)
What is the atomic number of this atom?a,b,c
08
13
09
o 5
4,
Answer:
oxygen has the atomic number 8
13 is aluminum
09 is fluorine
05 is boron
4 beryllium
if tanA= x/y find the value of xsinA+ycisB
Answer:
If tan A = 3 / 5, then sin A = 3√34 / 34 and cos A = 5√34 / 34 .
Assuming x = 5 and y = 3 (The problem is deficient in this regard)
5(3√34 / 34) + 3(5√34 / 34)
30√34 / 34
15√34 / 17
Explanation:
I hope this helps!
When sleeping overnight, a person doesn't eat for many hours and blood sugar decreases. How does negative feedback work to affect this physiological value in a healthy person?
A. Insulin is released to cause cells to release glucose into the bloodstream.
B. Glucagon is released to cause cells to absorb glucose from the bloodstream.
C. Glucagon is released to cause cells to release glucose into the bloodstream.
D. Insulin is released to cause cells to absorb glucose from the bloodstream.
Answer:
It is c
Explanation:
C is the answer ur looking for my guy
The number of waves passing the observer per second is:
- the wavelength
- the amplitude
-the frequency
- the period
Answer:
frequency
Explanation:
comment if im wrong
The number of waves passing the observer per second is the frequency. Hence, the correct option is C.
What is frequency?Frequency refers to the number of waves that pass from a fixed point in unit time. It is a measure of the rate of repetition of a periodic phenomenon such as vibration or a wave.
It is measured in hertz (Hz), an international unit of measure where 1 hertz is equal to 1 cycle per second. The more cycles that occur per second, the higher the frequency of the system is.
For example-The human heart beats at a frequency of 68 beats per minute.
In general, frequency is a very important concept in many fields including physics, engineering, music and the natural sciences, and it is used to describe and analyze a wide range of periodic phenomenon.
Therefore, the correct option is C i.e., frequency.
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if a sample contains 20g of an isotope that has a half life of 1000 years how much will be left after 2000 years
After 2000 years, there will be 5g of the isotope remaining.
What is an isotope?If an isotope has a half-life of 1000 years, it means that after 1000 years, half of the original sample will have decayed. After another 1000 years (2000 years total), half of the remaining sample will have decayed, and so on.
To calculate how much of the sample will be left after 2000 years, we can use the following formula:
[tex]N = N_{0} * (1/2)^ (t/T)[/tex]
where:
N = the amount of the isotope remaining after time t
N0 = the initial amount of the isotope
t = the time that has elapsed
T = the half-life of the isotope
Plugging in the values from the problem, we get:
N = 20g * (1/2)^(2000/1000)
N = 20g * (1/2)^2
N = 20g * 1/4
N = 5g
Therefore, after 2000 years, there will be 5g of the isotope remaining.
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If the frequency of the black allele %B allele for the moth coloration gene in the newly founded island population of moths in your genetic drift lab simulation was 78% what was the frequency of the white allele %b allele in the same population at the same time? A. 19.5% B. 22% C. 39% D. 78% or E. Impossible to determine
Answer:A
Explanation:
Under genetic drift effects, the allelic and genotypic frequencies of a population change through generations. In the exposed example, the frequency of the white allele in the same population at the same time is f(b) = 22%.
-------------------------
Available data:
Frequency of the dominant allele, B = 78% = 0.78 Frequency of the recessive allele, b = ??Genetic drift lab simulation ⇒ Founder effectWe need to find out the frequency of the recessive allele is this new population. But before answering the question, let us review what the genetic drift is.
Genetic drift is an evolutionary mechanism. Genetic drift is the random change that occurs in the allelic frequency of a population through generations. The magnitude of this change is inversely related to the size of the original population. Its effects are harder in a small-sized population. These changes produced by genetic drift accumulate in time. Eventually, some alleles get lost, while some others might set. Genetic drift affects a population and reduces its size dramatically due to a disaster or pressure -bottleneck effect- or because of a population split -founder effect-.When the small population increases in size, it will have a genetically different composition from the original one. Genetic variability is reduced, and there exists the possibility of developing a peculiar allelic composition.
According to this information, we know that allelic frequencies vary from generation to generation. So probably, if we need to calculate allelic and genotypic frequencies in the next generation, they will be different from the frequencies in this generation.
However, in this problem, we need to determine the frequency of the recessive allele at the same time, meaning in the present generation.
Since they are frequencies, their addition must equal one. So all we need to do is to clear the following equation,
p + q = 1
being
p the dominant allele frequency, f(B) = 0.78q the recessive allele frequency, f(b) = ??0.78 + q = 1
q = 1 - 0.78
q = 0.22 = 22%
The frequency of the white allele in the same population at the same time is f(b) = 22%.
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Please Help I'll give branliest!!!
Answer:
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( 10 points) (pls help brainliest)
What causes a blind spot in human vision?
A. The retina is located behind the lens.
B. Cones are ineffective in low light.
C. The cornea at the front of the eye is transparent.
D. The retina is interrupted by the optic nerve.
Answer:
The answer is option D. The retina is interrupted by the optic nerve.
Hope it helps........ pls mark as brainliest
Answer:
d
Explanation:
Which part of the plant...
1. Transmits sunlight =
2.Takes in CO2, releases O2 =
3. Uses Sun's energy to make glucose =
4. Chloroplasts are located here =
5. Transports sugars made =
6. Stores sugars =
Answer:
1: Chlorophyll
2: Stomata
3: Leaf Chloroplasts
4: Leaf Mesophyll
5: Phloem
6: Starch
Explanation:
Just did a few quick google searches so there is a small possibility that I'm wrong.
Which of the following statements best describes negative feedback loops?
A. They respond to changes with changes in the same direction, to move a value toward an endpoint.
B. They produce negative outcomes for the organism.
C. They aren't used often in maintaining homeostasis.
D. They respond to changes with changes in the opposite direction, to keep a value in the optimal range.
Answer:
B but if I'm wrong I'm so sorry I'm really tired but I think I'm right
Explanation:
Why do plant cells need chloroplasts?
Answer:
Because chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant.
