Jack has a condition where mucus builds up in his lungs. This makes it more difficult for gas exchange to take place. Which two organ systems are primarily affected by this?
The two organ systems primarily affected by the condition where mucus builds up in Jack's lungs are the respiratory system and the immune system.
What is the role of a respiratory system ?The respiratory system is responsible for gas exchange, where oxygen is taken in and carbon dioxide is eliminated from the body. In Jack's case, the mucus buildup in his lungs can make it more difficult for this gas exchange to occur, as it can block the airways and reduce the surface area available for gas exchange to take place.
The immune system is also affected, as mucus buildup in the lungs can lead to an increased risk of respiratory infections. The mucus can trap bacteria and other pathogens, which can then cause infections in the respiratory system. This can lead to inflammation and further narrowing of the airways, making it even more difficult for Jack to breathe.
To add further detail, the mucus buildup in Jack's lungs can lead to a condition known as cystic fibrosis (CF). CF is a genetic disorder that affects the respiratory, digestive, and reproductive systems.
In CF, the body produces thick, sticky mucus that can clog the airways in the lungs, making it difficult to breathe. This mucus can also block the ducts in the pancreas, preventing digestive enzymes from reaching the small intestine and leading to malnutrition.
Therefore, the respiratory and immune systems are the two organ systems primarily affected by Jack's condition.
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If fission takes place every 20 minutes in some bacteria, then starting with one bacterial, how many bacterial cells would be produced in three cell divisions or one hour
Sickle cell disease results from an amino acid change from Valentine to glutamic acid. The result of this amino acid change is a deformed hemoglobin protein that does not carry oxygen well. What type of genetic mutation caused the amino acid change in a person with sickle cell anemia?
a. frameshift mutation
b. silent mutation
c. nonsense mutation
d. missense mutation
Chains of nucleic acids have directionality and are read in a certain way just like languages are read from "left to right" or "right to left."
DNA is always read in the_______direction, 3' to 5' or 5' to 3'
whereas RNA is read in the_______direction, 3' to 5' or 5' to 3'
Ans.
During DNA replication, DNA polymerase synthesizes new daughter strand in 5' to 3' direction as it can add new nucleotide molecules at 3'-OH group of growing strand only. During transcription, RNA polymerase also synthesizes RNA molecules in 5' to 3' direction. Thus, the template DNA is always read by DNA polymerase or RNA polymerase in 3' to 5' direction.
During translation, a long polypeptide chain is made by reading information from mRNA molecule. The RNA molecule during protein synthesis is always read in 5' to 3' direction, from start codon to stop codon.
Thus, the correct answer to fill in first blank is 3' to 5' and in second blank is 5' to 3'.
Does anybody know the phylum and class of the horseshoe crab?
One way of balancing the concentration of ions and molecules within a cell is to use all but ______________ . ATP transfers one of its phosphate groups (becoming ADP) to a transfer protein. This protein changes its conformation so it can bring needed ions into the cell and get rid of unnecessary ions.
A) cellular energy
B) active transport
C) membrane protein
D) phospholipid channels
its d phospholipid channels i just took it on usatestprep
Which statement best summarizes Gregor Mendel's contribution to science? Question options:
Mendel invented the green pea by cross-breeding thousands of pea plants. Mendel coined the word genes to describe inherited traits.
Mendel determined that garden pea plants can produce flowers in a variety of colors.
Mendel found evidence that factors for some traits are inherited from parents.
Answer:
Its the last one
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Explanation:
The lymph system is a network of small vessels and organs that includes _____.
a. the thyroid, the thymus, and the lymph nodes
b. the spleen, the thyroid, and the lymph nodes
c. the spleen, the thymus, and the adrenal glands
d. the spleen, the thymus, and the lymph nodes
Maddy, Carole, and Maria are enjoying a day at the beach. They are body surfing and playing on their boards. Imagine that wave A catches up with wave B. Describe the change, if any, in wave amplitude
Answer: A new, larger wave C, knocks down the girls.
Explanation: Maddy, Carole, and Maria are enjoying a day at the beach. They are body surfing and playing on their boards. Imagine as the girls play, wave A catches up with wave B. What might be the result of this interact? A) A new, larger wave, wave C, knocks the girls down. B) A new wave, wave C, is much smaller than either wave. C) Wave A cancels out wave B and the girls cannot body surf. D) Wave A and wave B cannot interact as they are too far apart.
HURRY!!!! The image shows a group of birds flying in a V-shaped pattern.
Which statement is best supported by the image?
A.The birds are close together so they have a better chance of finding mates and increasing their reproductive success.
B.The birds are part of a eusocial society so they have a better chance of finding mates and increasing their reproductive success.
C.The birds are aerodynamically efficient so they can use the air around them to reduce the energy used to fly.
D.The birds are part of a eusocial society so they can use the air around them to reduce the energy used to fly.
Answer: Option C
Animals moving in packs or flocks, try to utilize the energy efficiently. The same case is with birds moving in V shape. They use the energy of the air around them, so that air pressure could help them fly with less input of energy. V shape pattern is more aerodynamically energy efficient.
Also, while flying there are no chances of finding mates for reproduction, so option A and B are incorrect.
Answer: Option C
Animals moving in packs or flocks, try to utilize the energy efficiently. The same case is with birds moving in V shape. They use the energy of the air around them, so that air pressure could help them fly with less input of energy. V shape pattern is more aerodynamically energy efficient.
Also, while flying there are no chances of finding mates for reproduction, so option A and B are incorrect.
Why do you need both muscles and bones to move your body?
Both muscles and bones are necessary for movement because the muscles act as the force to move the levers of the bones, which provide the rigid structure necessary for movement. Muscles attach to bones via tendons and contract to pull on the bones. This partnership of muscle contractions and bone levers is what enables the wide range of movements in the human body.
To understand why muscles and bones are both necessary to move your body, it's key to know about the musculoskeletal system. This system is composed of the muscular system and the skeletal system working together to facilitate movement. The bones provide a sturdy framework and act as levers, while the muscles provide the force to move these levers. Muscles are attached to bones via strong connective tissues known as tendons. When muscles contract, they pull on the bones to which they are attached, causing movement.
The system operates because muscles can only contract (shorten) and cannot actively extend, they do so against the rigid framework provided by the skeletal system. Muscles are often organized in antagonistic pairs, meaning that one muscle contracts to move a bone in one direction, while another muscle contracts to move it back. Furthermore, the skeletal system offers points of attachment for the muscles and transmits forces that muscles generate during contraction.
Overall, muscles cannot effectuate motion without a rigid structure to work upon, which is why bones are critical. Conversely, bones cannot move on their own without the contractions generated by the muscles. This interplay of muscles and bones allows us to perform activities as diverse as standing, walking, running, and picking up objects.
Why is cancer so difficult to treat ?
Compare and contrast between scientific theory,scientific law and scientific hypothesis
What starts an involuntary swallowing action when it senses food
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To what body system does this belong to? Circulatory System.
How might what is happening in this image affect the nervous system? The fatty deposit might clog your blood circulation, so you might not breath if it is clogged.
What is the process of developing a cultivated group of domesticated animal??
Animal husbandry is the process of developing a cultivated group of domesticated animals. It involves steps like selection based on desired traits and artificial selection to ensure these traits are passed down through generations. Over time, this creates a new breed of animal that is more beneficial for human use.
Explanation:The process of developing a cultivated group of domesticated animals, or animal husbandry, involves controlled breeding to highlight desirable characteristics and diminish undesirable ones. The initial step is selection, where specific animals showcasing traits such as productivity, hardiness, or gentle temperament are chosen to reproduce. Artificial selection is then applied, where humans influence the breeding and survival rates of animals based on these traits.
Over generations, these traits become common within the group, effectively creating a new line or breed of the animal that is more beneficial for human use. Examples of this process can be seen in the various breeds of dogs, cattle, and poultry that have been developed for different uses.
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What are two substances that are useful because of their viscosity ?
Oil and liquid soap are the two substances that are useful because of their viscosity.
What is viscosity?Viscosity is the ability of a fluid, liquid, or gas to resist changing its shape or moving nearby areas in relation to one another. Viscosity is a sign of flow resistance. Fluidity, metric indicating ease of flow, is the reciprocal of viscosity. For instance, molasses is more viscous than water.
Viscosity may be considered as internal friction between both the molecules; this friction prevents the formation of velocity disparities within a fluid since a section of a fluid that is compelled to move carries along nearby parts to some extent. When fluids are employed as lubricants and carried in pipes, viscosity has a significant role in defining the forces that must be overcome. In procedures like spraying, injection molding, and surface coating, it regulates the liquid flow.
Therefore, the two substances that are useful because of their viscosity are oil and liquid soap.
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Sickle cell anemia is known to run in a family.
What best describes offspring 4?
A) female carrier of the disease
B) female having the disease
C) male carrier of the disease
D) male having the disease
From the given pedigree analysis, the offspring 4 depicts male having the disease. Thus, the correct option is D.
What is pedigree analysis?Pedigree analysis is a figurative description of the inheritance of a particular gene in a family from parents to their offspring in a scientific manner. It is a family tree and shows the genotype of the individuals for that trait.
Symbols used in the pedigree chart:
1. Circle - for depicting female
2. Square - for depicting male
3. Unshaded shape - for unaffected individuals
4. Fully shaded shape - for affected individuals, those having the disease
5. Half-shaded shape - for heterozygous individuals, those who are carriers of the trait
From the given diagram, it is observed that both the parents are heterozygous dominant, meaning they are carriers of sickle cell anaemia. As a result, the trait for the disease has been transmitted to the offspring.
Out of the 4 offspring, the first is unaffected and does not have the allele for the disease, offspring 2 and 3 are carriers and offspring 4 is affected with the disease as he is homozygous recessive for the trait.
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In nature, individuals with successful traits pass on these trails to the next generation but unsuccessful traits are eliminated.
What is this process called?
A.
artificial breeding
B.
natural selection
C.
sexual reproduction
D.
genetic engineering
Whenever successful traits get passed on next-generation while unsuccessful traits are eliminated, this process is called natural selection. So, the correct option is B.
What do you mean by Traits?Traits may be defined as the appearance or manifestation of a character. In genetics, traits are also known as Phenotypes.
Natural selection always carries their successful or most favorable traits into the next generation and eliminates the unsuccessful or least favorable traits. Or in other words, natural selection states the occurrence of the most favorable variations.
Therefore, whenever successful traits get passed on next-generation while unsuccessful traits are eliminated, this process is called natural selection.
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The weather patterns seen on earth are influenced greatly by a. Constant motion of the tech tonic plates b. Strength and direction of earths magnetic field c. Amount of oxygen in the troposphere d. Cycling of water in and out of the atmosphere
Help fast, please!
The human activities in two locations are described below:
Location A: Oil drilled from several mines
Location B: Unregulated harvesting of trees
Which statement is most likely true?
Bird population will increase in Location A because of improved habitat.
Air quality will improve in Location A because drilling does not cause pollution.
The water will be contaminated in Location B because of increase in oxygen gas.
There will be mass migration of humans from Location B because of food scarcity.
ANSWER : Option D) There will be mass migration of humans from Location B because of food scarcity.
Explanation : As in the Location B there is unregulated harvesting of trees is going on, the forest resources would get reduced which will decrease the amount of products that were many peripheral mass were dependent on; So in search on new place and better food options the mass population will migrate.
Answer:
Option D, I got it correct :D
Explanation:
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What is the estimated age of Earth? 10 billion years 6.4 billion years 2.6 billion years 4.6 billion years
Answer:
4.6 billion years
Explanation:
I just finished this test with a 100% lol
Which of the following is an example of internal regulation during the cell cycle?
A: a gap outside of the cell (caused by skateboarding accident) triggers cell
division.
B: a cell receives a signal from the cell's own nucleus to divide.
C. Tumor cells continue to divide without receiving a signal.
D: Hormones in the blood cause cell growth in a growing teenager.
The option that gives an example of internal regulation during the cell cycle would be a cell receiving a signal from the cell's own nucleus to divide. The correct option would be B.
Internal regulation of cells refers to the reaction of certain parts of cells to a signal given from the control center of cells. In other words, it refers to the control of processes in order to ensure that the required limits are not breached.
There are different checkpoints in a typical cell cycle and cells will not proceed to the subsequent stage of the cycle if there is no go-ahead from the control center once the checkpoints are reached.
The checkpoints ensure that things are in order before moving to the critical stages of the cell cycle. If the checkpoints are breached, the cell could lose control and divide uncontrollably.
Hence, a cell receiving signals from the nucleus to divide is an example of internal regulation.
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Please help me please
How long does it take for the moon to complete one cycle?
Which of the following is the best example of a community?
A.
a warm, humid climate with plenty of rainfall
B.
a nest of mockingbirds, some bullfrogs, a pond, and a sandy shore
C.
bees and wasps around a group of purple cornflowers
D.
a school of sunfish
Option B, a nest of mockingbirds, some bullfrogs, a pond, and a sandy shore, is the best example of a community.
Explanation:The best example of a community is option B, a nest of mockingbirds, some bullfrogs, a pond, and a sandy shore. This option includes multiple species living together in the same habitat and interacting with each other. Mockingbirds, bullfrogs, and other organisms in the ecosystem form a community by sharing resources, competing for food and mates, and potentially depending on each other for survival.
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Option C, bees and wasps around a group of purple cornflowers, is the best example of a community.
Explanation:A community refers to a group of different organisms living together in a particular habitat and interacting with one another. Based on the given options, the best example of a community is option C, which describes bees and wasps around a group of purple cornflowers. In this case, the bees, wasps, and cornflowers form a community where they interact and depend on each other for survival.
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a quick automatic response to something in the environment is called
If Earth was like a hard boiled egg, which part of earth would the egg yolk represent? A) Core, as it makes up the most part of earths diameter. B) Core, as it lies between the crust and the mantle. C) mantle, as it lies between the crust and the core. D) mantle, as steps is less than 100 kilometers.
Answer:
A) Core, as it makes up the most part of earths diameter.
Explanation:
Comparing the earth to a boiled egg, cut in half, we can recognize its parts and its interior:
The earth's crust corresponds to the eggshell; It is the most superficial and hard layer of the earth, formed by rocks. The crust is not formed by just one part, but several others that are the large plates that float over the mantle.The mantle corresponds to the egg white, which is the layer located just below the earth's crust and composed of very hot rocks that move constantly. In the center of the earth there is a large core, which corresponds to the egg yolk. This is the warmest part of the earth. The core is divided into two, the outer, which is liquid, and the inner, which is solid.Most human genetic disorders are caused by the expression of_____
A) recessive alleles
B)two dominant alleles
C)one dominant allele
D) sex-linked heredity
The Michigan forests contain a variety of tree species. What happens to the tree population when a forest losses its diversity; when only one tree species dominates an area? Students in biology class conducted the following simulations to predict the effects oon one tree species due to the presence of an invasive insect species: the hemlock woolly adelgid. Simulation #1 - 1. 28 students were given a card marked with H for hemlock 2. Each student moves around the room to meet three other students and write their names on their card. 3. The teacher represents the hemlock woolly adelgid.. He touches one student who dies and sits down. That student reads the names on his/her card. 4. Each student named, also dies and also reads the names on their cards. 5. Continue to all the students sitting have read the names on their cards. Count the number of students still standing. Simulation #2 1. Students are given cards marked H - hemlock; JP - jack pine; F - balsam fir; A - aspen; B - birch. 2. Repeat steps #2 - #5 from Simulation #1. 3. This time ONLY the students marked H will sit down. The other species of trees do not die. Based on the students' simulations, what conclusion can be drawn?
A)Biodiversity halts the impact of disease and/or insect damage in an ecosystem.
B)Planting hemlocks in stands by themselves will save the other tree species growing throughout Michigan.
C)By planting a variety of tree species, you reduce the impact of specific insect damage on a forest ecosystem.
Answer:
The Correct Answer Is C
Explanation:
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