In the respiratory system, the proper order starting as you inhale air through the nose down to the lungs is: Nasal cavity > Pharynx > Larynx > Trachea > Main bronchi > Segmental bronchi > Bronchiole > Terminal bronchiole > Respiratory bronchiole > Alveolus. Hence, option B is correct.
The respiratory system is the system responsible for breathing. It has various components and organs that work together to enable breathing. The respiratory system comprises the nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, respiratory bronchioles, and alveoli.
Nasal cavity: This is the first stage in the respiratory system where air enters. It is also known as the nose.
Pharynx: It is a muscular tube located between the mouth and the larynx. It helps in the passage of food and air.
Larynx: It is a part of the respiratory system that connects the pharynx to the trachea. It has vocal cords and is responsible for sound production.
Trachea: This is a tube that connects the larynx to the bronchi. It is also known as the windpipe.
Main bronchi: The trachea divides into two main bronchi. Each bronchus leads to one lung.
Segmental bronchi: Each main bronchus is further divided into smaller segments called segmental bronchi.
Bronchiole: The segmental bronchi are further divided into bronchioles.
Terminal bronchiole: The bronchioles further divide into terminal bronchioles.
Respiratory bronchiole: They are thin-walled tubes that are responsible for gas exchange.
Alveolus: The respiratory bronchiole leads to the alveoli, which are small air sacs that are responsible for gaseous exchange.
Therefore in the respiratory system, the proper order starting as you inhale air through the nose down to the lungs is: Nasal cavity > Pharynx > Larynx > Trachea > Main bronchi > Segmental bronchi > Bronchiole > Terminal bronchiole > Respiratory bronchiole > Alveolus.
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the cells that deposit new bone tissue are the ______.
The cells that deposit new bone tissue are called osteoblasts.
A cell is the basic unit of life. It is the smallest structural and functional unit of an organism, capable of performing all the functions necessary for life. All living organisms are made up of one or more cells, and they can either be prokaryotic or eukaryotic. Cells carry out various functions, including energy production, protein synthesis, and DNA replication. They also maintain homeostasis and respond to changes in their environment.
Prokaryotic cells are found in bacteria and archaea and are characterized by lacking a membrane-bound nucleus and other organelles. Eukaryotic cells, on the other hand, are found in animals, plants, fungi, and protists and are characterized by having a membrane-bound nucleus and various organelles that carry out specific functions within the cell.
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Sort the following events according to whether they occur in replicative transposition, nonreplicative transposition, or both:Donor DNA retains a copy of insertion sequence., Recombination separates donor and target DNAs. Hairpin structures form on each end of insertion sequence., Insertion sequence "jumps" into recipient DNA., Donor DNA loses insertion sequence. DNA polymerase fills in gaps, Transposase is required., Target sequence gets duplicated., DNA ligase seals nicks.- Replicative:- Nonreplicative:- Both:
In replicative transposition, the donor DNA retains a copy of insertion sequence, whereas in nonreplicative transposition, the donor DNA loses the insertion sequence. Hairpin structures form at each end of the insertion sequence in both nonreplicative and replicative transposition.
The insertion sequence jumps into the recipient DNA in both replicative and nonreplicative transposition. DNA polymerase fills in gaps in replicative transposition, while transposase is required in both replicative and nonreplicative transposition. The target sequence is duplicated in both replicative and nonreplicative transposition, while DNA ligase seals nicks in replicative transposition.
The following list shows how the events are sorted according to whether they occur in replicative transposition, nonreplicative transposition, or both:
Replicative transposition :
1. DNA polymerase fills in gaps.
2. DNA ligase seals nicks.
Nonreplicative transposition:
1. Donor DNA loses insertion sequence.
2. Transposase is required.
Both:
1. Donor DNA retains a copy of insertion sequence.
2. Recombination separates donor and target DNAs.
3. Hairpin structures form on each end of the insertion sequence.
4.Insertion sequence "jumps" into recipient DNA.
5. Target sequence gets duplicated.
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Explain how resting potential is maintained along an axon, the events that lead to an action potential, and the events of an action potential itself
The depolarizing current causes a burst of electrical activity called an action potential. This indicates that due to an action (stimulus), the resting potential becomes 0 mV.
The sodium/potassium pump uses ATP to transport 3 sodium ions out of the cell and 2 potassium ions into the cell, thus maintaining the resting membrane potential at the axon. This keeps the apparent negative charge of the neuron in place. The sodium-potassium pump sequentially removes three sodium ions from the cell for every two potassium ions introduced.
As such, it retains the significant gradient of potassium ions across the membrane that underlies the resting membrane potential.
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how are the antennae chelipeds, other walking legs, and swimmerets related?
They're all just limbs. The long antennae are utilised to physically sense a place, such the crevice's contours.
The tiny antennules are used to detect motion in the water, which may also be a sign of food, a fling, or danger, as well as to aid the creature in smelling for food, mates, or harmful predators. The antennae in crayfish come in two pairs. The brief pair is referred to as an antennule. Food and water are tasted through antennae. The crayfish's long antennae are employed for their touch sense, which aids in helping them locate food and detect vibrations from nearby predators.
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2.
PART B: Which TWO sentences from the article best support the answers to Part A?
"Fingerprints probably represent the best-known example of a feature
useful in biometrics." (Paragraph 5)
A.
B.
C.
D.
E.
F.
"Any feature of the body with a unique shape, size, texture or pattern ...
potentially can be used to identify someone." (Paragraph 5)
"It can be hard to get a good print from people who have worn down the
skin on their fingers after years of working with rough materials, such as
brick or stone." (Paragraph 32)
"Health officials tap into this file, using the fingerprint scanner, to
accurately identify which children still need vaccinating..." (Paragraph 40)
"Using biometrics to keep kids healthy, log onto electronic devices and
catch criminals are important applications." (Paragraph 42)
"We eventually want to use facial recognition in robots that can identify
who you are." (Paragraph 44)
Answer:
The best two sentences that support the answers to Part A are:
"Any feature of the body with a unique shape, size, texture or pattern potentially can be used to identify someone." (Paragraph 5)
This sentence supports the answer to Part A because it indicates that any unique feature of the body can be used for biometric identification, including features like the pattern of veins in the hand.
"It can be hard to get a good print from people who have worn down the skin on their fingers after years of working with rough materials, such as brick or stone." (Paragraph 32)
This sentence supports the answer to Part A because it explains that people who have worked with rough materials for many years may have worn down their fingerprints, making it more difficult to use fingerprints for biometric identification.
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how does gene regulation help conserve energy for an organism?
By selecting expressing genes, expressing genes in the most energy-efficient manner possible, conserving energy during protein synthesis, and responding to feedback mechanisms, gene regulation aids in energy conservation for an organism.
Gene regulationGene regulation enables an organism to only express the genes necessary for a given function, leading to selective gene expression. This prevents the expression of genes that are not necessary, conserving energy that would have been used for their expression.Energy-efficient gene expression: Gene regulation enables an organism to express genes in the way that uses the least amount of energy. For instance, certain genes only express themselves when a certain stimulus, such as a particular dietary or environmental factor, is present. This implies that when the stimulus is not present, the organism does not need to expend energy on expressing these genes.Gene control enables an organism to save energy during protein synthesis, which results in more energy-efficient protein synthesis.learn more about Gene regulation here
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guayule (parthenium argentatum) is a plant originating in mexico that is used to produce rubber. scientists used artificial selection to breed guayule with a relative plant from utah, parthenium ligulatum, and produced a hybrid plant that transferred cold tolerance to guayule. in this example, plant growth habits and leaf shape are components of that enabled cold tolerance, and the transferability of these traits is an example of . guayule (parthenium argentatum) is a plant originating in mexico that is used to produce rubber. scientists used artificial selection to breed guayule with a relative plant from utah, parthenium ligulatum, and produced a hybrid plant that transferred cold tolerance to guayule. in this example, plant growth habits and leaf shape are components of that enabled cold tolerance, and the transferability of these traits is an example of . sexual reproduction; variation variation; heritability genetic drift; taxonomy heritability; overproduction of offspring
In this example, plant growth habits and leaf shape are components that enabled cold tolerance, and the transferability of these traits is an example of genetic heritability.
Artificial selection is the intentional selection and breeding of organisms with desired characteristics that people can benefit from. It is performed by humans to influence the inherited traits of organisms, particularly for food production and the extraction of natural substances like rubber.
Guayule (Parthenium argentatum) is a plant that originated in Mexico and is used to create rubber.
Scientists crossed Guayule with a relative plant from Utah, Parthenium ligulate, using artificial selection, resulting in a hybrid plant that transmitted cold tolerance to Guayule.
The growth habits of plants and leaf shape are traits that contributed to cold tolerance in this case, and the transferability of these characteristics is an example of genetic heritability.
Genetic heritability is the proportion of phenotypic variation in a population that is attributable to genetic variation among individuals. In this case, the genetic variation of the hybrid plant contributed to the cold tolerance of the guayule plant.
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