If it is the first time that this pathogen comes into contact with the immune system, IgM antibodies are produced, which are the first type of antibodies produced against a certain microorganism.
Immunoglobulins are molecules that intervene in defense processes against microorganisms and infections.
Each type of immunoglobulin is specific against a certain antigen, this is what allows an immunological memory to exist, which is obtained when coming into contact for the first time with a certain microorganism.IgM is the first immunoglobulin synthesized by the neonate by itself, and it is also the first to appear during the primary response, which lasts an average of three weeks and then disappears.In general, the production of IgM antibodies precedes that of IgG, the concentration of antibodies can be high, plateau for a few days and then decrease rapidly.Therefore, we can conclude that when the immune system first comes into contact with an antigen, a primary response occurs; mediated by IgM antibodies.
Learn more about IgM antibodies here: https://brainly.com/question/13022267
In order to see cells clearly in a section of plant tissue, which magnification would you have to use? А x5
B x 10
С X100
D X1000
Ratio
L guess you idiot
What is the role of density changes in a convection cycle
Answer:
Explantion
Convection is heat transfer due to a density differential within a fluid. As water's temperature increases in the presence of a heat source, it will become less dense and rise. As it moves up and away from the heat source, it cools and becomes more dense and sinks. ... Air from above the ocean is colder and more dens
Convection is the transfer of heat caused by a density difference within a fluid. Water becomes less dense and rises as its temperature rises in the presence of a heat source.
What is convection?Convection is a method of moving heat that is also known as a heat transfer mechanism. When a fluid, such as air or water, is in motion, heat is transferred. Temperature differences across the fluid drive convection.
Differential heating causes convection currents. Warmer (less dense) material rises, while cooler (more dense) material sinks.
This movement is responsible for the formation of circulation patterns known as convection currents in the Earth's atmosphere, water, and mantle.
Convection is the heat transfer resulting from variations in density within a fluid. In the presence of a heat source, water becomes less dense and rises in density.
Thus, this is the role of density changes in a convection cycle.
For more details regarding convection, visit:
https://brainly.com/question/16635311
#SPJ2
the organ that transfers nutrients and oxygen from mother to embryo is called the
Answer:
The fetus is connected by the umbilical cord to the placenta, the organ that develops and implants in the mother's uterus during pregnancy. Through the blood vessels in the umbilical cord, the fetus receives all the necessary nutrition, oxygen, and life support from the mother through the placenta.
IQ is determined by:(1 point)
multiple genes only
both a single gene and environmental factors
a single gene only
multiple genes and environmental factors
IQ is determined by ; ( D ) multiple genes and environmental factors
IQ ( intelligence quotient ) is influenced by more than a single gene ( i.e. multiple genes ) and this makes IQ a polygenic trait found in organisms such as humans.
IQ is not only determined by multiple traits but is strongly influenced by environmental factors just like the multiple genes. IQ measures the intellectual ability of humans ( i.e ability to read and think critically outside the box and also think logically . )
Hence we can conclude that IQ is determined by multiple genes and environmental factors
Learn more : https://brainly.com/question/10758806
Answer:
multiple genes and environmental factors
Explanation:
Why do parasites not require complex nervous or muscular tissue?
Porque los parásitos no requieren tejido nervioso o muscular complejo?
Answer:
Hey mate.....
Explanation:
This is ur answer.....
Poorly developed nervous and muscular systems – because parasites live inside their hosts, they don't need eyes, ears or a keen sense of smell to detect potential predators nor a brain to facilitate escape. They have little need for a muscular system because they have no place to go.
Hope it helps!
Brainliest pls!
Follow me! ♤
2- El electron ocupa el nivel
de menor energia que se
encuentran libre falsa o verdadera
verdad
porque si estos tuvieran carga positiva ya no serían electrones
What condition occurs when epidermal cells are created too quickly? a. Acne c. Psoriasis b. Skin cancer d. Chicken pox.
The condition that occurs when epidermal cells are created too quickly is known as psoriasis. In this disease, the cell cycle of skin cells is abnormally accelerated.
Psoriasis is a skin disease associated with itchy patches of thick, red skin, especially in the knees, trunk, and scalp.
Psoriasis is an autoimmune disease caused when the immune system attacks healthy skin cells.
Psoriasis is well characterized by hyperproliferative keratinocytes, which are the most prominent type of cell within the epidermis.
Learn more in:
https://brainly.com/question/6357052
How do animals cause erosion.
Answer:
Some animals weather rocks by scraping them as they feed. Other animals change Earth's surface by burrowing into it and moving material. Too many animals in one place can destroy most of the plants, leading to faster erosion.
If too many animals graze the same land area, the animals’ hooves pull plants out by their roots. A land is overgrazed if too many animals are living there. Grazing animals can cause erosion if they are allowed to overgraze and remove too much or all of the vegetation in a pasture.
Explanation:
Hope this helped :)
Identify the main gas that diffuses from the alveolus to the capillary.
Answer:
oxygen
Explanation:
Place the stages of photosynthesis in order:
Answer:
First is D
Second is C
Third is B
Fourth is A
when fatty acid metabolism creates more acetyl-coa than can be handled in the citric acid cycle, the excess acetyl-coa is converted into ________.
Answer:
Ketone Bodies
Explanation:
If excess acetyl CoA is created and overloads the capacity of the Krebs cycle, the acetyl CoA can be used to synthesize ketone bodies.
what is an important function of the urinary system?
Answer:
the kidneys are the most important function of the urinary system
Explanation:
mark me brainliest
pls and ty
<3 anmol
Which sentence best explains how a positive feedback loop affects climate
change?
A. As the number of plants increases, the amount of CO2 decreases.
B. High clouds have a high albedo and reflect solar energy back into
space.
C. As climate warms, CO2 increases because plants remove less of
it.
D. High precipitation results in increased plant growth, lowering CO2.
A positive feedback loop that affects climate is change as the number of plants increases, the amount of CO2 decreases.
The more trees the less CO2?Scientists agree that one of the most effective ways to absorb part of the CO2 from the atmosphere would be to plant more trees, as they use CO2 to grow and release oxygen, this action brings benefits to the entire environment.
With this information, we can conclude that A positive feedback loop that affects climate is change as the number of plants increases, the amount of CO2 decreases.
Learn more about plant more trees in brainly.com/question/15215949
#SPJ1
specific enteroendocrine cells of the stomach, called g cells, are stimulated by partially digested proteins, caffeine, and rising ph. when stimulated, g cells secrete ________.
when stimulated, g cells secrets oocytes
(c)
In the human body, glucose is absorbed into the blood from the small intestine.
The small intestine contains many villi.
Which two of the following help the absorption of glucose in the small intestine?
Tick () two boxes.
Villi have a cell wall.
Villi are covered in thick mucus.
Villi give the small intestine a large surface area.
Villi have many blood capillaries.
(2)
Total 7 marks)
Answer:
villi is used and is very imp as it has structure like finger type which help for increase in surface area for more absorption and less wastage of water/minerals
Answer:
villi have a cell wqll
Explanation:
Number 4……………………………..
If the new gene "works", then it will synthesize a missing enzyme or structural protein. A gene is a protein-coding nucleotide (DNA) sequence.
A gene is a fragment of DNA that is used by the cell to create a complementary mRNA sequence by a process called transcription.
Subsequently, this mRNA is then used to synthesize a protein by a process called translation.
When a gene is defective, a change in the nucleotide sequence (i.e., a mutation) can restore normal gene function and thus produce a functional protein.
Learn more in:
https://brainly.com/question/4275010
the mycelium is a mesh of filaments, each of which is called
PLZZZZZZZ help me and thank you
Answer:
it's in the book hehe 11111111111111
how do scientists know that mountains were once at the bottom of the ocean
Answer:
Its more then likely that they do and they were the ones that found that out. but im not 100% sure
Hi can someone plss help me with this!!
Explanation:
4. evaporates , ocean
8. transpiration,
9. acid rain
in what ways does transformation play a role in stories meant to scare us essay
Answer:
Transformation can play a big role in frightening stories because transformation in and of itself can be frightening. This process involves the unknown and a loss of control, two things that very much tend to frighten human beings who prefer the familiar and secure.
Why does pollution become more than a local problem?
it can kill
Explanation:
The reason it is a universal problem is because it can kill animals and polute the ocean and then clog up a boat engine
white rami carry _________ neurons, while gray rami carry _________ neurons.
Answer: myelinated preganglionic, unmyelinated postganglionic
Explanation:
Just took the test
what is most likely the cause of this difference from the rest of the population
Answer:
Gene mutation is most likely the cause of this difference from the rest of the population. Log in for more information.
Explanation:
CAN I GET BRAINLIEST
Newly hatched birds that lack down and are nest-bound, unable to feed on their own, as with baby wrens or robins, are Group of answer choices carinate. altricial. derived. ratites. precocial.
Newly hatched birds that lack down and are nest-bound, unable to feed on their own, as with baby wrens or robins, are ALTRICIAL. These species include hummingbirds, swallows, passerine birds, woodpeckers, etc.
In altricial species, young individuals are underdeveloped at birth, thereby needing the help of parents to mature and develop into adult individuals.
Conversely, precocial species are species in which young individuals are mature and mobile from the moment of birth.
Most domestic species of birds (i.e., ducks, turkeys, chickens, etc) have a precocial type of development.
Learn more in:
https://brainly.com/question/22053583
Explain how pollution from one location
can affect the environment far away from the
source of the pollution
Answer:
Air quality is affected by natural processes. Wind can move pollutants from their source to far-away locations. It can still spread and harm living creatures and destroy their environments.
Explanation:
Air quality is affected by natural processes where wind can carry pollutants to places far away from their source which can still spread and harm living beings and destroy their environments.
What is Pollution?Pollution is defined as the introduction of harmful materials into the environment where the harmful materials are called pollutants. Pollutants can be natural, such as volcanic ash which can also be created by human activity, such as waste or runoff produced by factories. Pollutants harm the quality of air, water and land.
Many things produce pollution such as cars spewing pollutants from their exhaust pipes. Burning coal to generate electricity pollutes the air. Industries and homes generate waste and sewage that can pollute land and water. Pesticides which is chemical poisons used to kill weeds and insects which is seep into waterways and harm wildlife.
Thus, air quality is affected by natural processes where wind can carry pollutants to places far away from their source which can still spread and harm living beings and destroy their environments.
Learn more about Pollution, here:
https://brainly.com/question/28519286
#SPJ2
Is it True or false?
100!!! POINTS!!!!
On the map, take a close look at the boundary along southern California and Mexico’s Baja California Peninsula. The arrows on the map show the direction and speed of the plates along this boundary in millimeters per year. Based on the speed and direction of the arrows, identify the type of plate boundary at this location. Which landforms or events are likely to occur there as a result? (Hint: It may be helpful to model the motion of the plates using your hands or pieces of paper.)
Explanation:
Thus, at convertgent boundries, continental crust is created and oceanic crust is destroyed. Two plates sliding past each other forms a transform plate boundry
The area around the convergent boundries, continental crust is created then the oceanic crusts were destroyed.
What are land forms?The term land form is used to describe the physical features that describe the geography of any particular area.
Looking at the map, in the area around the convergent boundries, continental crust is created then the oceanic crusts were destroyed.
Learn more about land forms:https://brainly.com/question/15303041
#SPJ2
an adaptation of the epithelial cells of the proximal convoluted tubule for reabsorption is
at what point in sperm production do you hypothesize that loss of the testis-blood barrier would have an immunological effect on sperm production?
Answer:
when u do ittttt
Explanation: