Hepatitis A affects the liver. The incubation period of hepatitis A is around 28 days.
What is an incubation period?An incubation time is a period between the infection and the actual appearance of the symptom. It can be said that the time taken for the hepatitis A virus to show its symptoms like nausea, fever, and abdominal pain after infection is incubation time.
Hepatitis A virus spreads through contaminated food and water and is preventable by vaccines. It takes approximately 28 days for the virus to cause the symptoms of the disease from the time of its infection period.
Therefore, the incubation time of the virus is 28 days.
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List the angles in order from smallest to largest. Note image in not drawn to scale
Using sine rule and cosine rule, the angles from smallest to largest is A,B,C.
Using the cosine rule;
a^2 = b^2 + c^2 - 2bc cos A
When;
a = 9 cm
b = 16 cm
c = 18 cm
9^2 = 16^2 + 18^2 - (2 × 16 × 18) cos A
81 = 256 + 324 - (576) cos A
81 = 580 - 576 cos A
81 - 580 = - 576 cos A
cos A = (81 - 580)/ - 576
A = cos-1[(81 - 580)/ - 576]
A = 30°
Using the sine rule;
a/sin A = b/sinB
asinB = bsinA
sinB = bsinA/a
B = sin-1(bsinA/a)
B = sin-1[(16 × sin30)/9]
B = 63°
Now;
A + B + C = 180(Sum of angles in a triangle)
C = 180 - ( A + B)
C = 180 - ( 30 + 63)
C = 87°
The angles are A, B, C.
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Calculate the percent change of a population of geese that started with 40 individuals.
12 were born and 8 died. 6 geese immigrated into the population.
Ansew heheheheheheh
Explanation:
if the dna sequence is TAC CCC AAG CTC GGT ATC. what is mRNA
tRNA
AA?
The mRNA sequence would be:
AUG GGG UUC GAG CCA UAG
The mRNA sequence is complementary to the DNA sequence, in other words would just basically mean you do the opposite of the bases to the DNA sequence such that:
Cytosine with Guanine
Thymine (uracil for RNA) with Adenine
However, mRNA has Uracil instead of Thymine, so instead the uracil in mRNA binds with adenine.
Urcacil with Adenine
For tRNA, they have anticodons, meaning they have bases complementary to the mRNA strand, so the tRNA with the complementary anticodon sequence would be:
UAC CCC AAG CUC GGU AUC (DNA sequence but replace thymine with uracil)
For the amino acids, they would bond to the specific tRNA molecules with the specific bases on the anticodons.
This is my teacher/daughter
thats nice :)
also hi hru
How do ionic compounds dissolve?
Is cloning of endangered species a reliable and acceptable way to repopulate those ecosystems that suffer the loss of important species? Why or why not. (2 paragraph
minimum).
Cloning an extinct species is a possible answer for a suffering ecosystem. The only drawback is that scientists have not yet mastered cloning. When attempting to clone animals often they are deformed and therefore not able to reproduce let alone survive. Even when scientists do manage to clone animals without killing them, it takes many generations of selective breeding to get the species you are trying to revive which takes time, making the ecosystem even more damaged.
The study of a living being is called biology.
The correct answer is not reliable.
The duplication of the genes in the laboratory is called cloning.
The first clone species was the sheep whose name was a dolly.
Those species which are on the verge of extinction is called endangered species and they need extra protection to carry their gene to the next generation.
The cloning will be able to multiply the gene in the in-vitro culture but they will have a direct impact on the natural genes and the combination of the gene present in nature.
The natural species have all the desired genes which help them to survive in nature, whereas the clone species will not have the desired gene which is required to adapt to nature and they will extinct eventually. If these genes pass on to the next generation then the endangered species will also have less chance to survive in nature.
Hence, in my opinion, they cloning is not a suitable way to save endangered species.
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what is do scientists look for when classifying organism
Answer:
they look at characteristics, such as their appearance, reproduction, and movement, to name a few.
Explanation:
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Deana applies the data in the table to calculate the rate of population increase or decrease of each country. Which assumption is necessary for Deana’s calculations to be accurate?
It should be noted that population is simply used for the determination of the economic activity of an area or country.
Your information is incomplete. Therefore, an overview of population will be given. Population simply means the inhabitants of a particular place or the number of organisms living in an area.
The increase or decrease in the rate of population is calculated by the formula:
= (New population - Old population) / Old population × 100
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What is one of the results of an increase in the amount of greenhouse gases in the atmosphere?
А
increased overall ocean salinity
B
decreased global polar ice melting
с
increased overall atmospheric humidity
D
decreased global surface temperatures
Answer:
C) Increased overall atmospheric humidityIncreasing overall atmospheric humidity is the result of an increase in the amount of greenhouse gases in the atmosphere. Therefore, option C is correct.
What are greenhouse gases?The gases that trap heat in the earth's atmosphere are referred to as greenhouse gases. The earth's surface warms during the day when the light beams through the atmosphere. The earth's surface cools at night, redistributing heat into the atmosphere. However, part of the heat is captured by the atmosphere's greenhouse gases.
Due to minute concentrations of water vapor (H2O), carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) in the atmosphere, the Earth has a natural greenhouse effect.
Increasing overall atmospheric humidity is the result of an increase in the amount of greenhouse gases in the atmosphere. Therefore, option C is correct.
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Discuss the arguments for and against genetic therapy and genetic engineering.
Answer:
Reasons to ban germline gene editing include the profound risks to future children, thin medical justifications, reinforcing existing inequalities and creating new forms of discrimination, eroding public trust in responsible science, and undermining global agreements.
Explanation:
ppbag at it again
Where does carbon dioxide come from during photosynthesis?
Answer:
Plants extract the carbon dioxide from the air and use it in photosynthesis process to feed themselves.
=
Which of the following is a way that minerals are used?
a. industry
b construction
C technology
d. all of the above
Please select the best answer from the choices provided
A
ООО
0 0 0
Answer:
D.
Explanation:
Mosses and trees are both what?
Answer: D. (Mosses and trees are both plants.)
Explanation: Since mosses are non-vascular plants and trees are vascular plants, and mosses and trees are both not seed plants, mosses and trees are both plants. (Hope this helps! :D)
Which organelle is the powerhouse of the cell
Answer:
The mitochondria
Explanation: Mitochondria (sing. Mitochondrion) are known as the powerhouse of the cell because they are responsible for the release of energy from food ,i.e, cellular respiration. This energy is released in the form of ATP (adenosine triphosphate), the energy currency of the cell.
What is the function of the structure labeled C in the diagram to the right? it is where water, dissolved substances, and urea are filtered out of the blood.
Answer:
B. It captures the substances filtered out of the blood.
Explanation:
Edge 2021
Answer: B
It captures the substances filtered out of the blood.
Explanation:edge 2022
The vitreous humor is found in the _________.
A. Anterior chamber of the anterior segment
B. Posterior chamber of the anterior segment
C. Posterior segment
D. Optic canal
Answer:
b the posterior chamber of the eye
The following table provides phenotypic data for a population of mammoths living in cold environments based on fossil and DNA evidence.
Characteristic Percent of Population Showing Trait by Generation
Generation 1 Generation 2 Generation 3
Tusks greater than 2.5 m in length 25 25 25
Tusks less than 2.5 m in length 75 75 75
Mass greater than 4,000 kg 15 15 15
Mass less than 4,000 kg 85 85 85
Fur thickness greater than 6 cm 15 25 35
Fur thickness less than 6 cm 85 75 65
Based on this data and your knowledge of natural selection, which explanation best explains the trends seen in the data?
A. Individuals with thicker fur had a survival advantage in the cold environment, allowing these individuals to reproduce more often and create more offspring.
B.Individuals within this population of mammoths tend to only mate with individuals that have thick fur.
C.This population of mammoths appear to be in Hardy-Weinberg equilibrium since no allele frequencies are changing over time.
D.Individuals with thick fur migrated into the population of mammoths, increasing the proportion of these individuals.
PLEASEEE HELPPP MEEEE!!!!
Answer:
Individuals with thicker fur had a survival advantage in the cold
Explanation:
Natural selection means the process of changing the adapting the new environment. Based on the given data one can conclude that the individual with thicker fur had a survival advantage in the cold environment.
Why natural selection occurs?Natural selection takes place due to 3 underlying reasons:
ReproductionHeredityVariation in fitness of organisms.Due to these reasons, natural selection can leads to speciation.
As the individual are living in cold environment, they need to adapt the change in environment. So, individuals with thicker fur had a survival advantage in the cold environment, allowing these individuals to reproduce more often and create more offsprings.
Thus, option A is correct.
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Ba
Regarding cell walls, which of
these is the MOST accurate?
im
A. Cell walls and cell membranes are the very
same thing
B. Cell walls burst any time the cell takes in too
much water.
C. Cell walls keep a plant, bacteria or fungus cell
from bursting when too much water is absorbed
Answer:
C
Explanation:
cell wall
When water moves into a plant cell, the vacuole gets bigger, pushing the cell membrane against the cell wall. The force of this increases the turgor pressure within the cell making it firm or turgid . The pressure created by the cell wall stops too much water entering and prevents cell lysis.
Which of the following is an example of gene flow?
O The movement of people on Earth steadily increases and alters the course of human evolution
An earthquake results in the formation of a canyon, splitting a population of toads apart
O A fire drastically reduces the size of a white-tailed deer population. The remaining individuals spread out throughout the remaining forest
A small population of grasshoppers gets blown away and isolated during a storm. The gene pool of the new population is different from the original population
An example of gene flow is: A. The migration/movement of people on Earth which gradually increases and alters the course of human evolution.
What is Gene Flow?Gene flow, which can also be referred to as gene migration, is the transfer of genes or genetic material from one population of a species to another.
Migration of humans from one region to another leads to people of one race intermarrying with people of another entire race.
For example, A European migrating to North America, and getting married to a North American thereby giving birth to offspring exhibiting traits of booth a European and a North American. A gene flow has occurred.Therefore, an example of gene flow is: A. The migration/movement of people on Earth which gradually increases and alters the course of human evolution.
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Answer:
A
Explanation:
I took the test
What properties do all liquids share
In the pregnancy time the embryonic cells are developed into different types of cells,tissues,organs How??
Answer:
The embryonic stage plays an important role in the development of the brain. Approximately four weeks after conception, the neural tube forms. This tube will later develop into the central nervous system including the spinal cord and brain. The neural tube begins to form along with an area known as the neural plate.
Explanation:
In your own words explain why the sky is blueI
Answer:
As white light passes through our atmosphere, tiny air molecules cause it to 'scatter'. The scattering caused by these tiny air molecules (known as Rayleigh scattering) increases as the wavelength of light decreases. ... Therefore, blue light is scattered more than red light and the sky appears blue during the day.
Explanation:
Thank You I hope it's helpfull...
How do i do this:
Information about the four organisms can be found on the Internet. Use credible websites to find answers to the questions you developed in part A. Based on this data, draw your own dichotomous key.
Answer:
multicellular animal,plant,fungi,microorganisms
tissue respiration, location in the cell and sequence of reaction
Answer:
The Location of Cellular Respiration
Cellular respiration takes place in both the cytosol and mitochondria of cells. Glycolysis takes place in the cytosol, whereas pyruvate oxidation, the Krebs cycle, and oxidative phosphorylation occur in the mitochondrion.
Tissue respiration occurs internally where the oxygen carried by the blood and RBCs is exchanged with the carbon dioxide produced by the cells of various tissues. ( This answers the location of where tissue respiration occurs
Sequence of tissue respirationThe stages of tissue respiration include:glycolysis - pyruvate oxidation - citric acid or Krebs cycle - oxidative phosphorylation.
Cell tissue respiration
It is the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water
Cellular tissue respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate, and then release waste products.
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In what parts of the body would you expect oxyhaemoglobin to be breaking down to oxygen and haemoglobin ?
Answer:
Haemoglobin binds with oxygen in body locations where the oxygen concentration is high (in the lungs) and forms oxyhaemoglobin. Blood with a high concentration of oxygen is described as oxygenated
In 2018, the average age for first marriage in the United States was 29.8 years for men and 27.8 years for women. These ages for first
marriages are
These ages for first marriages are Average age .
What is the average age of first marriage in the United States?The median age at first marriage for women was 28 years in 2015-2019, up from 26.3 in 2006-2010. The median age at first marriage for men was 29.9 years in 2015-2019, up from 28.1 in 2006-2010.
What is the median age at first marriage for women?In 2019, the median age for the first wedding among women stood at 28.4 years.
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"Eukaryotes are more evolved than prokaryotes."Do you agree the statement?
Answer: Eukaryotes are more evolved than prokaryotes. This is false. Again, no living taxon is more evolved than another.
Granite is an intrusive igneous rock with large crystals because it cools slowly. Where was this rock most likely formed ?
A - in a river
B - deep inside a volcano
C- in a mountain range
D- on the surface of a volcano
Ik the answer is not c
Can someone help me figure this out plz and thank you
Answer: D
Explanation: Because rock cools on the surface of the volcano and I know because I learned about volcanoes and I went through the topic.
Granite is an intrusive igneous rock with large crystals because it cools slowly. this rock most likely formed on the surface of a volcano. thus option D is correct.
What is rock cycle ?
Rocks are naturally occurred on non-living earth which are made by collection of mineral grains held together in a firm, it can be tiny or big as well and can be easily identified with their texture.
The Rock cycle can be defined as a continuous process through which old rocks are transformed into new rock due to cool down of molten magma, when it solidifies become igneous rock.
In a rock cycle, when the break down of these igneous rocks occur small particles that are transported and deposited to form sedimentary rocks, When the igneous and sedimentary rocks heated up and under the pressure they change into metamorphic rocks.
The metamorphic rocks which are subjected under great heat and pressure melt down to form molten magma which again can cool down and solidify into igneous rocks
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help please asap!!!!!!!!!!!!!!!!!!!
Answer:
Basidiomycotes
the second one
Explanation:
A biological factor that is correlated with borderline personality disorder is:
a)
a high level of testosterone.
b)
a low level of serotonin.
c)
a high level of serotonin.
d)
a low level of testosterone.