Microscopic folds that extend from the apical surface of certain epithelia to increase the surface area for absorption and secretion are called microvilli.
What is microscopic folds?Microscopic folds are those fold that are found above an epithelial cell of an organ where maximum absorption takes place.
These microscopic folds have increased surface areas and a typical example is the microvilli of the small intestine.
Learn more about absorption here:
https://brainly.com/question/26061959
#SPJ1
Microscopic folds that extend from the apical surface of certain epithelia to increase the surface area for absorption and secretion are called Microvilli.
What is Microvilli?Microvilli are cellular membrane protrusions that improve diffusion surface area while minimizing volume increase than can be seen through a microscope. Plasma membrane covers microvilli, enclosing cytoplasm and microfilaments (the main structure is given by the actin filaments).
In the gastrointestinal system, microvilli serve as the major surface for nutrition absorption. The microvillar membrane is filled with enzymes that help in the breakdown of complicated nutrients into simpler molecules that are more easily absorbed because of its critical role.
Learn more about gastrointestinal absorption here: brainly.com/question/2729062
#SPJ1
which type of study that a student is doing by exploring the external features of an animal
Answer:
ethology
Explanation:
I just looked it up
Cod fry often settle under the bell of some jellyfish species, whose tentacles are poisonous. Name the form of relationship illustrated by this example. Assume the mechanism of formation of this device
Answer:
Explanation:
해파리 (cnidarians) have a worldwide distribution. Despite most being harmless, some species may cause local and also systemic reactions. 처치 of 해파리 envenomation is directed at: alleviating the local effects of venom, preventing further nematocyst discharges and controlling systemic reactions, including shock. In severe cases, the most important step is stabilizing and maintaining vital functions. With some 차이점 between species, there seems to be evidence and consensus on oral/topical analgesics, hot water and ice packs as effective painkillers and on 30 s application of domestic vinegar (4%–6% acetic acid) to prevent further discharge of unfired nematocysts remaining on the skin. Conversely, alcohol, methylated spirits and fresh water should be 조심스럽게 avoided, since they could massively discharge nematocysts; pressure immobilization bandaging should also be avoided, as laboratory studies show that it stimulates additional venom discharge from nematocysts. Most 처치 approaches are presently founded on 상대적으로 weak evidence; therefore, further research (especially randomized clinical trials) is strongly recommended. Dissemination of appropriate 처치 modalities should be deployed to better inform and educate those at risk. Adequate signage should be placed at 바닷가 to notify tourists of the jellyfish risk. Swimmers in risky areas should wear 보호 장비.Which structure is found only in plant cells and
functions in the process of photosynthesis?
a) W
b) X
c) Y
d) Z
Thank you.
Answer:
B) Chloroplast
Explanation:
Chloroplasts are the organelle of photosynthesis. They make and store pigments that give petals and fruit their orange and yellow colours.
I hope this helps and have a good day!
Explain the propagation of electrical impulses along a neuron including the role of myelin
Nerve impulses are signals that are transmitted along nerve fibers of the body.
Nerve impulses are electrical impulses. They are generated in response to stimuli.
These electrical impulses create:
action potentials as waves of depolarization that moves along the axons.The axons contain voltage-gated ion channels that are either opened or closed by depolarization (which is the opening of ion channels leading to changes in membrane potential)
Depolarization further causes other channels to open and close thus spreading across the entire length of the axon and into another nerve cell (neuron).
Myelin sheaths act as buffers and through salt conduction help increase the speed of electrical impulses through the neurons. Not every nerve cell is insulated with a myelin sheath.
To learn more about neurons see: https://brainly.com/question/24217914?referrer=searchResults
#SPJ12
Cartilage is separated from surrounding tissues by a fibrous.
Cartilage is separated from surrounding tissues by a perichondrium.
What separated the cartilage from the tissue?Cartilage is separated from the surrounding tissues by perichondrium. It consist of two layers i.e. Outer Fibrous Layer that provides protection, mechanical support. It also attaches the cartilage to other structures.
So we can conclude that Cartilage is separated from surrounding tissues by a perichondrium.
Learn more about tissue here: https://brainly.com/question/408637
#SPJ1
According to the research, cartilage is separated from surrounding tissues by a fibrous perichondrium.
What is a cartilage?It is a specialized connective tissue that is devoid of nerves, blood vessels and lymphatic vessels.
These tissues allow the joints to move, protect the ends of the bones and act as a support against possible blows.
Therefore, we can conclude that according to the research, cartilage is separated from surrounding tissues by a fibrous perichondrium.
Learn more about a cartilage here: https://brainly.com/question/13710590
#SPJ1
common plants in murree ??
Answer:
i only know this much just Mark me brailinist
Explanation:
Ajuga bracteosa
Aesculus indica
Adiantum capilus - veneris
Acacia modesta Achyranthis aspera
I need help. The four main types of macromolecules found in organisms are carbohydrates, lipids, nucleic acids, and ?
Answer:
Proteins
Explanation:
These are the carbohydrates, lipids (or fats), proteins, and nucleic acids. All of the major macromolecule classes are similar, in that, they are large polymers that are assembled from small repeating monomer subunits.
what kind of characteristic is used innthe key to classify the animals???
Answer:
the animal classification system anatomy morphology evaluational history features of embryological development and genetical makeup this classification stream is constantly deplobin as new information about specialitie hope it's helpful
Answer:
their anatomy, morphology, evolutionary history, features of embryological development, and genetic makeup.
`
Explanation:
for each phenotype, list the genotypes (Remember to use the letter of the dominant trait)
* Straight hair is dominant to curly:
_____Straight
_____Straight
_____Curly
*Tail spikes are dominant to plain tails:
_____pointed
_____pointed
_____round
how is ""maximum"" tension achieved in a whole muscle (assuming optimal length)?
The maximum tension achieved in a whole muscle by stretching a muscle to its optimum length.
What is maximum tension of a muscle?The maximum tension of a muscle is the maximum force that a muscle can generate when contacting.
The maximum tension equates to the maximum work that a contracting muscle can do.
The maximum tension achieved in a whole muscle by stretching a muscle to its optimum length where actin–myosin interactions are maximal.
Learn more about muscle tension at: https://brainly.com/question/4259162
#SPJ11
Which of the following organic compounds is the main fuel supply for cellular work?
a. sugars
b. lipids
c. nucleic acids
d. proteins
I am pretty sure it's sugars but I want to check
What do you observe in the North American Deciduous Forests ?
Answer:
broad-leafed trees that shed their leaves annually
Explanation:
npsgov
What is the advantage of starting with the 4x objective before moving to the 10x and then the 40x objective?.
The advantage of starting with the 4x objective before moving to the 10x and then the 40x objective is that the lower power objective has a larger field of view and is easier to focus.
What are objective lens of a microscope?An objective lens of a microscope are those lens that are used to focus that sample on a slide and they are always the closest lens to the slides.
The four types of objective lens of a microscope include:
× 4 objective×10 objective×40 objective andoil immersionThe advantage of starting with the 4x objective before moving to the 10x and then the 40x objective is that the lower power objective has a larger field of view and is easier to focus.
Learn more about microscope here:
https://brainly.com/question/13691610
#SPJ9
your instructor gives you an unknown organ for you to examine and identify through microscopy. what should you do first with the sample?
When examining an unknown organ and identifying it through microscopy, it is required fix it with preservative.
What is a preservative?A preservative is a specific chemical compound used to conserve a biological sample.
In microscopy, preservatives are very useful to study the anatomy of body parts and their cells.
In conclusion, when examining an unknown organ and identifying it through microscopy, it is required fix it with preservative.
Learn more about preservatives here:
https://brainly.com/question/17229386
#SPJ12
Help please help! Need help
Answer:
option c. 1 is correct.
*For detailed explanation refer to the attachment.
The ____ builds an important barrier against pathogens, but it has to absorb ___ efficiently at the same time.
The small intestine builds an important barrier against pathogens, but it has to absorb nutrients efficiently at the same time for optimum function.
What is a pathogen?A pathogen refers to living microorganisms that are capable of causing diseases and harm to their host. Thus, they include the following:
ProtozoaFungiWormsVirusBacteriaBasically, the small intestine has the ability to build an important barrier against pathogens. However, it has to absorb nutrients efficiently at the same time for optimum function of an organism.
Read more on pathogens here: https://brainly.com/question/27961024
#SPJ12
Submit your air quality report for your area, showing seven days, the air quality color for each day, and each day's major pollutants. This information should have been obtained in the previous lesson. Also, write a one-paragraph explanation of where the pollutants in your area most likely come from. Part 2 Consider the area that you live in. In at least one paragraph, describe how each of the following factors could affect air pollution in your area. If none of them would affect you, explain why. Factors to consider: the presence of urban areas, topography (presence or absence of hills and mountains), summer temperatures, latitude (distance from the equator).
The amount of ozone and particle concentrations in a given area are influenced by a variety of weather-related factors, therefore the weather can have a significant impact on air quality.
What influences the air's quality?The quality of the air is influenced by a variety of climate-related elements, including temperatures, cloud cover, humidity, precipitation frequency and intensity, wind patterns, and others.
In India, more than 90% of people live in areas where the air quality is below WHO limits. The biggest sources of pollution are factories, coal-fired power plants, and automobiles.
Learn more about the quality of the air here:
brainly.com/question/858294
#SPJ1
Indicate the relationship between the two items listed in each situation: (can be used more than once or not at all) - A. Resting neuron's permeability to K B. Resting neuron's permeability to Na - A. Neuron's permeability to Na during the rising phase of an action potential B. Neuron's permeability to K during the rising phase of an action potential - A. Resting neuron's permeability to Na B. Neuron's permeability to Na during the rising phase of an action potential - A. Resting neuron's permeability to K B. Neuron's permeability to K during the falling phase of an action potential - A. Neuron's permeability to Na during the falling phase of an action potential B. Neuron's permeability to K during the falling phase of an action potential a. A and B are equal. b. A is greater than B. c. B is greater than A.
The permeability of the neuron membrane to Na and K differs with the stages of action potential as follows:
A is greater than BA is greater than BB is greater than AWhat is an action potential?An action potential is a sudden change in the voltage across the membrane of a resting neuron resulting in transmission of impulse.
An action potential results in variation of neuronal membrane to sodium and potassium ions.
A. Resting neuron's permeability to K >>> B. Resting neuron's permeability to Na
Thus, A is greater than B.A. Neuron's permeability to Na during the rising phase of an action potential >>> B. Neuron's permeability to K during the rising phase of an action potential.
Thus, A is greater than B.A. Neuron's permeability to Na during the falling phase of an action potential <<< B. Neuron's permeability to K during the falling phase of an action potential.
B is greater than A.Therefore, the permeability of the neuron membrane to Na and K differs with the stages of action potential.
Learn more about action potential at: https://brainly.com/question/26502153
#SPJ1
I need the answer asap
Answer:
Executive
Explanation:
having the power to put plans, actions, or laws into effect.
Which two sentences use coordinate adjectives?
A.The dark, musty cellar was full of mice.
B. We rode down a long dirt road on a sunny morning.
C. The dark-haired, hazel-eyed baby was gurgling happily.
D.Alan is wearing a pale blue sweater.
The two sentences which use coordinate adjectives include:
The dark, musty cellar was full of mice.The dark-haired, hazel-eyed baby was gurgling happily.What are Coordinate adjectives?These are words which describe the features of the same noun and is usually separated by a comma.
Options A and C have coordinate adjectives such as 'dark' and the 'dark-haired' respectively.
Read more about Coordinate adjectives here https://brainly.com/question/14242023
#SPJ1
The scale below shows the pH levels of various liquids. Which of the following substances is a strong acid?
Answer:
Soda
Explanation:
0 is the most acidic and 14 is the most basic /alkaline
Which statement is correct?
O Theories are accepted as true when a single experiment yields similar results to another one.
O When a scientist finds a new way to test a hypothesis, experimental methods do not change.
O Theories may be revised over time as information is discovered or technology is developed.
O When a scientist finds a new way to test a hypothesis, the original theory is made into a law.
Answer:
Theories may be revised over time as information is discovered or technology is developed.
Explanation:
A scientific theory is a term used when a statement tries to explain a natural phenomenon of nature based on scientific facts. In short, a theory is the representation of a set of hypotheses that was confirmed through an experiment and that tries to explain a phenomenon, but leaves room for revisions and updates to its explanation.
For this reason, we can say that theories are reformulated, revised and even discredited, when the advancement of scientific knowledge and technology allows the creation of new studies that show a different explanation and more consistent with reality.
Answer:C
Explanation:
Following a bad fall on the ice, 54-year-old Neal landed on his gluteal region. Subsequently, he has absolutely no feeling in the skin overlying the hamstring muscle group. What nerve do you suspect has been lesioned in the fall
The posterior cutaneous nerve of the thigh.
Loss of sensation to the sole of the foot would result from nerve blockade of the tibial nerve at the medial malleolus.
What is a sensory nerve?A sensory nerve carries sensory information to the nervous system. Sensory information is that which is coming from external stimuli such as pressure and temperature. If a sensory nerve is damaged, the person loses sensation in that region of their body. This explains why the patient cannot feel his fingers.
Thus, this could be the answer.
To learn more about sensory nerve click here:
https://brainly.com/question/7156611
#SPJ1
Robert Hooke first observed cork under a microscope in jail so he named the small cubicles cells
False True
Robert Hooke first observed cork under a microscope in jail so he named the small cubicles cells is False.
Though "Robert Hooke" was the first person to observe cork under a microscope. He named the small cubicles cells because it used to remind him of the cells in the monastery
What is Robert Hook's discovery?Discovered microscopeDiscovering cells while observing a piece of cork under a microscopeRobert hook is considered the father of cell theoryHe found cell is a small structure and due to his discovery others were able to study more about the cell and explained that the cell is the basic unit of life.
Thus, the answer is false.
Learn more:
brainly.com/question/72438
#spJ1
if an insect eats the lettuce seedlings in your yard, it is acting most like a(n):
If an insect eats the lettuce seedlings in your yard, it is acting like an herbivore.
What is an herbivore?An herbivore is an organism that obtains its energy and nutrients to survive by eating plants.
Herbivores are fundamental in the food web and help to control the number of primary producers in the ecosystem.
In conclusion, If an insect eats the lettuce seedlings in your yard, it is acting like an herbivore.
Learn more about herbivores here:
https://brainly.com/question/1048752
#SPJ12
explain how RNA can serve as hereditary information
Answer: Genetic code (genes and genome) and the mechanisms of replication.RNA determines a cell’s function, synthesizing proteins and enzymes. Mutations, changes in DNA instructions, are the molecular basis of evolution. Nucleic Acids are the basis for the storage and transmissions of hereditary information in all cells.
Explanation:
RNA serves as the hereditary information for viruses that lack DNA. Although, typically single-stranded in most cells, in viruses they can be either single-stranded or double-stranded. Double-stranded RNA is an indicator or a viral infection.
Why is there no output from the photo-electric cell when the RLG is not moved?
There is no output from the photoelectric cell when the RLG isn't moved because the laser beams are 180 degrees out of phase.
What is a photoelectric cell?A photoelectric cell is also known as phototube and it can be defined as an electronic tube (device) that is fitted with a photosensitive cathode, which emits electrons when illuminated, as well as an anode that collects the emitted electrons.
Based on scientific research and experiment, we can logically deduce that there is no output from the photoelectric cell when the ring laser gyro (RLG) isn't moved because the laser beams are 180 degrees out of phase.
Read more on photoelectric cell here: https://brainly.com/question/9512062
#SPJ12
what are pollination and fertilization?
Determine which type(s) of blood this patient can safely receive. Check all that apply. A B AB O Also, the patient should receive blood that is for Rh.
People who are AB can receive blood from all types of blood groups.
What is Blood group?This is the classification of blood based on polymorphisms in antigens on the surfaces of the red blood cells.
There are four types of blood groups and the AB is known as universal recipient which means it can receive blood from any of them. Also the patient should receive blood that is positive for Rh as it will not make anti-Rh antibodies which may destroy cells of the fetus.
Read more about Blood group here https://brainly.com/question/15289194
#SPJ1
Answer: B and O........ Also, the patient can recieve blood that is NEGATIVE (only)
Explanation: these are the correct options on edge, i hope this helps!! :D
Which observation helped scientists determine the age of the universe?
A. All stars and galaxies are moving closer together at the same rate.
B. All stars and galaxies are moving away from Earth at the same
rate.
OC. The farther away a star or galaxy is, the more slowly it is moving
away from us.
о D. The farther away a star or galaxy is, the more quickly it is moving
away from us.
