Cell-mediated immunity involves the activation of different specialized cells present in the immune system.
What is cell-mediated immunity?Cell-mediated immunity is a type of adaptive immune response that involves the activation of different specialized cells present in the immune system.
These cells include, among others, phagocytes (macrophages), cytotoxic T-lymphocytes, etc.
Cell-mediated immunity also involves the release of chemical messengers such as cytokines that activate immune responses (e.g. inflammation).
These immune responses act in a concerted mode to recognize and attack antigens present in the flu virus.
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Four different people are using sound wave technology. a 2-column table with 4 rows. the first column labeled person has entries ali, megan, kristoff, jenna. the second column labeled sound wave technology has entries cancelling out sound waves to generate a quiet atmosphere, converting electrical signals into radio waves, changing sounds waves into electrical signals, converting radio waves into sound waves. which describes the form of technology most likely being used by each person? ali is using specialized headphones, megan is using a microphone, kristoff is using a transmitter, and jenna is using a radio. ali is using a radio, megan is using a microphone, kristoff is using a transmitter, and jenna is using specialized headphones. ali is using a radio, megan is using a transmitter, kristoff is using a microphone, and jenna is using specialized headphones. ali is using specialized headphones, megan is using a transmitter, kristoff is using a microphone, and jenna is using a radio.
Answer:
The correct answer is option D
Ali is using a specialized headphone that cancels the extra noise in the atmosphere. Megan is using a transmitter to convert electrical signals into radio waves. Kristoff is using a microphone to convert sound waves into the electrical signals. Jenna is using the radio to convert radio waves into sound waves.
Air pressure is lowest in the lungs during which of the following points during inspiration or expiration? (2 points)
A) End of inspiration, when lung volume is lowest
B) End of inspiration, when lung volume is highest
C) End of expiration, when lung volume is lowest
D) End of expiration, when lung volume is highest
Answer:
a) end of inspiration when lung volume is lowest
Explanation:
Question 10 of 10
What is the name of the planet next to the label A?
Solar System
EARTH
SUN
A Neptune
ООО
B. Mercury
C. Jupiter
D. Venus
I
Answer:
Venus
Explanation:
The order is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto
Planet A is in the second ring which correlates with Venus
the respiratory tract is blank to the intestines.
1.) superior
2. inferior
3. lateral
4. deep
Answer:
1.) superior
Explanation:
the respiratory tract is above the intestines
The correct answer is superior.
What is the respiratory tract's anatomy?The respiratory tract is the component of the human respiratory system that is engaged in the process of breathing. Respiratory mucosa or respiratory epithelium lines the respiratory tract. The air is inhaled through the nose or mouth.Learn more about the respiratory tract here:-
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What is one difference between renewable and nonrenewable resources?
Provide one example of a renewable energy source, and one example of a nonrenewable energy source.
Use these sentence starters to help you:
One difference between renewable and nonrenewable energy sources is _______________.
One example of a renewable energy source is ___________.
Answer:
Explanation:
1. a renewable resource can be repeatedly and replace naturally. but a non renewable resource cannot be repeatedly and replaced shortly.
2. Renewable Resources Nonrenewable resources
--> Solar Energy --> Oil
3. One example of a renewable energy source is _solar energy_
Answer:
One difference between renewable and nonrenewable energy sources is that renewable sources of energy can be renewed naturally overtime while nonrenewable sources of energy are not replaceable and have a limited quantity.
One example of a renewable energy source solar energy.
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If the 46 chromosomes are duplicated during interphase, why are there
still 46 chromosomes and not 92?
Before I talk about why there are still 46 chromosomes, I'll just review the basic chromosome structure. Each chromosome has a chromatid, with one centromere in the middle.
Chromosomes aren't counted by how many chromatids there are, but rather how many centromeres. When DNA duplicates, the chromatids replicate themselves, so each chromosome ends up having two sister chromatids joined at the same centromere.
There is the same number of centromeres in the cell, so there are still technically 46 chromosomes. However, there are 92 chromatids.
This used to be confusing for me too :) hope it helps!
Which fossil would be most useful for evidence of a continental drift?
a fossil turning up on a continent that is the same as one on another
continent
a fossil that is small, hard, abundant, resistant to temperature change,
and easily preserved
a fossil that is large and difficult to find, but sensitive to temperature
change
a fossil that is found deep in the ground on one continent
What is one difference between renewable and nonrenewable resources?
Provide one example of a renewable energy source, and one example of a nonrenewable energy source.
The difference between these two types of resources is that renewable resources can naturally replenish themselves while nonrenewable resources cannot. This means that nonrenewable resources are limited in supply and cannot be used sustainably.
Is the "Kingdom" level more specific or less specific then the "Domain" level?
Answer:
It is less specific. I know it can be hard to memorize all of the taxa but I just try to use a mnemonic (which I included below)
Explanation:
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
*Remember that in order to give an animal a scientific name we use the genus and species. Scientific names are always italicized and the Genus will be capitalized while the species is lowercase. The genus comes first.
Here is a mnemonic to help memorize the 7 taxa (Taxa is just the fancy word for each group in our classification system) Daring Kings Play Cards On Funny Green Stools.
Tip: The top of the category is the broadest and the further down you go, the more specific your categories get.
I hope this helps! ;)Answer:
Yes. Less specific. Kingdoms are slightly more specific than Domains. Remember that living things are always divided into 5 kingdoms.
AnimalsPlantsFungiProtistMoneraAn easier way to remember this mnemonic sentence, Any popcorn for perfect movies? Try writing it down with the meaning behind it! It will help you a lot. And remember the levels of classification:
DomainKingdomPhylumClassOrderFamilyGenusSpeciesThe higher the list is, the less specific, the lower, the more specific. You may want to write down this mnemonic sentence as well, to help you remember the levels of classification; Did king Philip come over for grape soda?
When charged particles of __________________ pass through the southern or northern
hemispheres of Earth they form Auroras.
A. coronal mass ejections B. solar flares
C. prominence D. solar winds
Explain how leaves are adapted to maximize photosynthesis.
Answer: Yes
Explanation: They are adapted for photosynthesis by having a large surface area, and contain openings, called stomata to allow carbon dioxide into the leaf and oxygen out.
2. Which features are associated with divergent boundaries?
a. folded mountains at ocean trenches
b. mountain chains at ocean ridges
c. non-boundary mountains
d. volcanic island arcs
Answer:
(b) mountain chains at ocean
I guess it is
brainliest if this helps you please
How do vaccines work if the pathogen in them is dead?
Answer:
Inactivated vaccines use the killed version of the germ that causes a disease.
Inactivated vaccines usually don't provide immunity (protection) that's as strong as live vaccines. So you may need several doses over time (booster shots) in order to get ongoing immunity against diseases.
Explanation:
In which form is most carbon dioxide transported in the blood?.
Answer:bicarbonate ions
Explanation:The majority of carbon dioxide is transported as bicarbonate ions. This is because erythrocytes have a high activity of carbonic anhydrase, an enzyme that catalyzes the reaction between carbon dioxide and water.
When would your cells be most likely to use fermentation instead of aerobic respiration?.
When you are exercising.
In everyday life when you aren't doing physical activity, you get enough oxygen to move. However, when you are exercising, you're using more oxygen than how much you're taking in. When the body doesn't have enough oxygen, (when you are exercising) it switches to anaerobic respiration (or fermentation).
Hope this helps!
During exercise, the cells of the body demand more energy so they use fermentation instead of aerobic respiration and lactic acid is produced from glucose.
What is fermentation?It is the process of partial oxidation of glucose, carried out by muscle cells when they run out of oxygen to breathe.
This process generates ATP but produces lactic acid as a by-product, which, when accumulated, produces the painful sensation of muscle fatigue during exercise.
Therefore, we can conclude that during exercise, the cells of the body demand more energy so they use fermentation instead of aerobic respiration and lactic acid is produced from glucose.
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Prostaglandins play a role in ________. A) skeletal muscle contraction B) control of blood volume C) noninflammatory responses D) control of blood pressure
Prostaglandins play a role in control of blood pressure which is denoted as option D.
What are Prostaglandins?They are referred to as natural chemicals in the body with hormone-like qualities and are involved in arterial pressure regulation.
This enables them control blood pressure through sodium excretion, renin release etc.
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Which process copies an organism's DNA?
A mutation
B replication
C transcription
D translation
Answer:
I think it's is B. replication
Answer:
replication is the process copies an organisms DNA
Paragraph 3 describes the diagram at the top of this article. It demonstrates:
A: that energy flows in one direction beginning with light energy
B: the transportation of sugars into mitochondria
C: the Krebs Cycle
D: the Calvin Cycle
Photosynthesis involves a series of reactions including trapping of sunlight energy and the Calvin cycle through which plants make their food in the form of sugars.
What is metabolism?Metabolism refers to the sum of reactions that occur in a living organism which helps obtain energy and remove waste in order to sustain the life of an organism.
Different metabolic reactions take place in plants and animals.
In plants, energy is obtained from the sun and is used to drive photosynthesis.
The sugars made in photosynthesis are stored in roots, stem and tubers as well as in fruits.
The sugars can be broken down to produce energy in th mitochondria.
The Calvin cycle is the process that plants use to convert carbon dioxide and water to sugars
The Krebs cycle is a cycle which produces molecules which are used to produce energy in the mitochondria.
Therefore, since the diagram is not attached, the process shown can be understood from the explanation of each process in photosynthesis and metabolism.
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what are the differences between plant cell and animal cell
Explanation:
Plant cell:
It is found only in plants.
It consists of cell wall.
Animal cell:
It is found only in animals.
It does not consists of cell wall.
Answer:
The main structural differences between plant and animal cells are the additional structures found in plant cells. These structures include: chloroplasts, the cell wall, and vacuoles.
Chloroplasts
In animal cells, the mitochondria produces the majority of the cells energy from food. Plant cells use sunlight as their energy source; the sunlight must be converted into energy in a process called photosynthesis. Chloroplasts are perform this function. The energy conversion in plants is a complex set of reactions similar to those performed by mitochondria in animals
The Cell Wall
Another structural difference between in plant cells is the presence of a rigid cell wall surrounding the cell membrane. The tough wall gives added stability and protection to the plant cell. If you think about it, most animal cells are inside an organism that has either an exoskeleton or an endoskeleton, built in structure. Plants don't have a skeleton of any kind so the cells have to perform this.
Vacuoles
Vacuoles are large, liquid-filled organelles found only in plant cells. Vacuoles can occupy up to 90% of a cell's volume and have a single membrane. Their main function is as a space-filler in the cell, but they can also fill digestive functions and their interiors can be used as storage for nutrients.
Both plant and animal cells comprise membrane-bound organelles, such as endoplasmic reticulum, mitochondria, the nucleus, Golgi apparatus, peroxisomes, lysosomes. They also have similar membranes, such as cytoskeletal elements and cytosol. The plant cell can also be larger than the animal cell. The normal range of the animal cell varies from about 10 – 30 micrometres and that of plant cell range between 10 – 100 micrometres.
Which of the following are examples of negative tropism? (Select all that apply.)
A. a plant’s leaves growing toward the direction of the sun
B. a plant’s stem growing upward out of the ground
C. a plant’s roots growing down into the soil
D. a plant’s leaves growing away from the sunlight. NO LINKS PLEASE would be it would be appreciated also its more than one for the choice
Answer:
D , it's multiple choice, but only one applies because all the other ones are beneficial to the plants life
Multiple origins of replication on the dna molecules of eukaryotic cells serve to.
Answer:
Multiple origins of replication on the DNA molecules of eukaryotic cells serve to create multiple copies of the DNA molecule at the same time.
removal of heavy metals from the soil can be done by trees.justify
Which process can remove carbon from the atmosphere?
Plant respiration, sea, organic cbon in soilExplanation:When plants or ppire they take up the carbon dioxide and let out oxygen:6 CO2 + 6 H2O (+energy) -->6 O2 + C6H12O6 In addition phytoplankton absorbs carbon dioxide using the same process as normal plants. In addition, the sea is able tools carbon dioxide. Lastly, soil retains organic carbon from decaying carcasses.
What are the 5 major Oceans?
Answer:
Simple!
Explanation:
1.) the Pacific Ocean
2.) the Atlantic Ocean
3.) the Indian Ocean
4.) the Arctic Ocean
5.) the Southern Ocean
What is the reaction catalyzed by aminoacyl-trna synthetases that is essential for translation?.
Without heat from the Sun, the water cycle would
A)reverse.
B)not work.
C)slow down
.D)not be affected.
Answer:
not work
Explanation:
Some things in the water cycle relie on the sun to produce things like flowers and the water can't do some stuff all on its own, just like some animal relie on the sun.
Hope this helps you friend :)
ehh I hope -_-
How might it be possible for a child to show a trait that neither of the parents showed?
A person can only show a recessive trait if both of their parents carried at least one copy of each of the recessive allele. The parents do not need to show the trait, as one copy is not enough to reveal it, but they must both carry it.
Hope this helped!
What happens to the number of chromosomes during fertilization?
The original number of body chromosomes are reinstated.
The number of chromosomes drastically decreases.
The number of chromosomes stays the same until birth.
There is an excess number of chromosomes.
Answer: I believe the answer is D.
Explanation:
Deserts are found around the globe, generally around a belt of ______degrees north and south latitude where global wind patterns carry down dry air from the upper atmosphere.
Deserts are found around the globe, generally around a belt of 30 degrees north and south latitude where global wind patterns carry down dry air from the upper atmosphere.
have a great day!
what is the difference between Prophase early and prophase late?
Early prophase - the nuclear membrane becomes more and more indistinct and the chromatin fibers become more and more packaged and condensed. ... late prophase - the nuclear membrane and the nucleolus finally vanishes completely.