Answer:
It targets and gradually weakens the body's immune system by damaging cells called CD4 T cells. This damage means that, over time, the body becomes less able to fight off other infections. If the immune system becomes impaired enough, infections that are typically mild can be life threatening.
Someone who is allergic to a particular compound (allergen) will often create a subtype of antibodies (immunoglobin E) to the allergen, and histamine levels will increase to produce the immune response. Although testing a particular food for the allergen is relatively straightforward, learning which potential allergen caused the response is much more challenging. Which might be the best technique to determine which allergen a person has been exposed to, and why?
A. Western blot – immunodetection of immunoglobin E can be determined by subjecting the allergen to SDS PAGE and transfer to Western blot.
B. Mass spectroscopy – determining the presense of antibodies in a person after exposure can be measured by the mass of immunoglobulin E.
C. Mass spectroscopy – measuring the increases in histamines can show whether the antigen has been exposed to the patient.
D. ELISA – using an allergen in a sandwich ELISA will capture the antibodies produced against the allergen.
Answer: ELISA – using an allergen in a sandwich ELISA will capture the antibodies produced against the allergen.
Explanation:
The best technique to determine which allergen a person has been exposed to is ELISA and this is because using an allergen in a sandwich, ELISA will capture the antibodies produced against the allergen.
The enzyme-linked immunosorbent assay which is known as ELISA is useful in the measuring of antigens, proteins, and antibodies, in a particular sample. These include diagnosis of pregnancy test, HIV infection etc.
Explain why the foxes shown in this food web are categorized as carnivores.
Answer:
Foxes are categorized as carnivores because they prey on herbivores.
(100 POINTS PLEASE HELP!!!!)
Project Intro
For this project, your goal is to explain why your city has the climate it does based on the latitude of the city and how that affects the amount of heat it receives from the sun, the air masses that affect it, and any ocean currents that affect the area.
Directions
You are to choose a city from the list below.
You will use the knowledge you have gained in this unit to answer the 3 questions in this assignment. You MUST use scientific reasoning in your answers.
You will want to go through slides from our lessons to assist you in answering the questions.
You will need to find your city on a map to answer these questions properly. You may use the map in your science kit, or you can find a map on line.
Materials Needed
Map of North America – one is included in your science kit OR you may use one found online.
Helpful lessons: 1.04, 1.07, 1.11, 1.13. Use our class slides to help you find information. You may still need to research more information. Links to slides are found in the
Choose one city from the list below
Vancouver, Canada
Los Angeles, California
Miami, Florida
Albuquerque, New Mexico
Bismarck, North Dakota
Intro Information (Worth 3 points)
My city: ______
What is the latitude of your city? _______________
The sun’s heat does not warm the Earth evenly. Areas near the equator are the hottest, and the further away you get from the equator in either direction (north or south) the cooler it gets.
In your own words answer this: If 0º latitude is hot and 90º latitude is cold, would you predict the weather in your city to be relatively warm or relatively cool? Why?
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
Based on the latitude/location of your city answer the questions using complete sentences. Remember, weather is the day-to-day conditions of a place. Climate is the average weather conditions of a place over a period of years. You are to examine and discuss the climate of your city.
The Earth is unevenly heated by the sun due to the sun hitting some areas more directly than others.
How does that impact the temperatures in your city? (Worth 4 points)
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
Large global wind systems are created by the uneven heating of the Earth's surface. These global wind systems drive air masses to areas creating different climates and weather patterns.
Which type of air mass would likely occur in your city? What type of weather would that bring? (air mass types: maritime polar, continental polar, maritime tropical, continental tropical) (Worth 4 points)
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
Examine your city and the ocean currents in that area, if any. Is your city affected by ocean currents? ______________
If yes, explain how the ocean currents affect your city. If no, explain how ocean currents affect coastal cities. (Worth 4 points)
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
Answer:
the answer to that is no because i need to do mine
okay why dont do this your self
Explanation:
Which event most clearly contributes to the monster's hatred of humans?
Answer:
Answervis D.
Explanation:
I hope it's helpful!
Answer:A, His being sent away by De Lacey family instead of being accepted.
Explanation:
Comparing and Contrasting in which class of elements is there a greater range of properties, the metals or the nonmetals? Give an example to support your answer.
Answer:
In which class of elements is there a greater range of properties, the metals or the nonmetals? Give an example to support your answer. Non-metals have greater range of properties given that they exist as solids, liquids and gases. And also that they can polymerize, crystallize and form organic compounds.
describe the difference between a gene and an allele?
Answer:
A gene is a section in the chromosome or DNA and the alleles is the sequence.
Explanation:
The gene determines a specific trait. An allele represents the different variations and alternatives that could be passed on.
What happened to Yellowstone National Park when wolves disappeared?
A.The bear population increased.
B.The deer population increased.
C.The willow tree population increased.
D.The grassy areas increased.
Answer:
B. The deer population increased
Explanation:
Wolves would primarily hunt the deer, therefore if there were no wolves around then the deer were able to reproduce without the threat of wolves eating them.
Wolves wouldn't hunt bears because it is increasingly harder for them to kill bears than deer.
The wolves wouldn't really influence the environment because they are mainly carnivores.
Hope this helps!!
- Kay :)
Answer: B. The deer population increased
Explanation:
Explain why do you think most energy pyramids have less than five levels?
yoooo im begging yall this is the only thing they give me 5th time putting this here
Answer:
hmm, I'm struggling here.
Explanation:
why are cocoons are kept in hot air before extraction of silk fibre
Answer:
The cocoons are put on steam (Hot boiling water Vapours) to soften the Cocoons Upper Layers and Kill the larvae (Silk Worm) & can be stored as is for more than 10 days
Explanation:
hope it helps you
please mark me as brainlist
Which tissue in the body supports, protects, produces blood cells and stores minerals
i think you might have typed the question wrong? because there's a system called "skeletal system" that performs all the above given tasks
Answer:
Bone
Explanation:
Bones have many functions including support, movement, protection, blood cell formation and the storage of minerals.
Identify an organism's need that is met by an abiotic factor
A wolf's need for warmth, fur coat
A fish's need for food, water
A lizard's need for warmth, sun
A rabbit's need for food, grass
One-hundred (100) wavelengths pass every 5 seconds. What is the frequency of the wave?
Explanation:
If the wave travels 100 meters in 5 seconds
then its speed is
100
meters
5
How much energy is remaining at the tropic level that the barn owl resides
Answer: predators like barn owls generally occupy the highest trophic level in any ... This group of organisms uses solar energy (photosynthesis) – or more rarely ... mantis shrimp subsist on benthic invertebrates, which are animals that live on the tree
Explanation:
What can be inferred about a petrified log? the wood needed long ages before it could petrify the tree laid on the surface for long ages the petrified log looks like the original tree.
Answer:
the petrified log looks like the original tree.
Explanation:
A tree to be petrified first needs to be buried. An element laying on the surface can not be petrified because it is exposed to many different factors (such as organisms, microorganisms, climatic conditions, etc.), that affect the petrification process. So, in the case of a fallen tree, first, it needs to be covered by many sedimentary layers. Once it is underground, it also needs the presence of underground water and minerals. Water replaces the original organic material with minerals (silica, calcite, and pyrite). This replacement process results in the conversion of the woody material into a fossil of the original material. Very often, the tree details are so preserved that the fossil looks exactly like the original trunk.
Depending on the preservation degree, a fossil can be useful for different studies about the past.
What happens to your diaphragm when you have hiccups?
Answer:
The diaphragm pulls down.
Explanation:
The reason for this is to draw air into the lungs.
In two or more complete sentences, compare species diversity and genetic diversity, and glve an example for each one.
Write your answer in the essay box below.
Answer:
Diversity in the genetic characteristic or traits present in a species throughout populations of particular species called genetic diversity. Genetic diversity deals with the number of alleles and genes found between individuals. It is responsible for the adaptation and distribution of species.
Species Diversity is the relative abundance of species found in a given biological organization in a community and interacts with biodiversity by changing biotic factors.
You are standing by a cliff far away from the ocean. You see a sedimentary layer with shells in it. You
ure told the shells are from oceanic organisms. How do you think this layer formed?
The layer would be formed by the strong currents as well as by waves slowly moving the shells to the share along with the other shells creating a layer of the shell as well as cliff of the rock.
What is sedimentary rock?Sedimentary rocks has been generally made up from the directly heat and these are formed when the deposition or the accumulation of the particles that are the organic or the minerals at the surface of Earth, later followed by the process of the cementation. The main feature of the sedimentary rock has been that they are formed in the multiple layers.The rocks has been made up of more than one mineral and the size of some rocks are small or big it depends upon their constituents.
Rock has been defined as when the mineral grains has been combined in the solid form and later they grow or take the shape of the cemented form has been known as the rocks.The rocks has been made up of more than one mineral and the size of the rocks are smaller or bigger it has been depends upon their constituents. Rocks has been divided on the basis of their formation by Geologists.There are mainly three kinds of rock and these are metamorphic, igneous, and sedimentary. The most durable substance is stone.
Therefore, The layer would be formed by the strong currents as well as by waves slowly moving the shells to the share along with the other shells creating a layer of the shell as well as cliff of the rock.
Learn more about rock on:
https://brainly.com/question/19930528
#SPJ2
1. The __________ determines if glucose moves into or out of the hepatocyte. multiple choice 1 amount of intracellular ATP versus intracellular glucose glucose concentration between the intracellular and extracellular fluid oxygen concentration between the intracellular and extracellular fluid amount of intracellular ATP available
glucose concentration between the intracellular and extracellular fluid.
The glucose concentration between the intracellular and extracellular fluid determines if glucose moves into or out of the hepatoctye.
How does glucose move?Glucose during metabolism are able to cross the blood brain barrier, and enters neurons. The concentration will determine if glucose will move.
They may be involved in the synthesis.
Therefore, between the intracellular and extracellular fluid determines if glucose moves into or out of the hepatoctye
For more details on glucose concentration kindly check https://brainly.com/question/26258564
GTA ATC TCT CTG TAA
What would the opposite DNA strand be?
Often, one change in an ecosystem causes another change. Drag and drop the tiles to show the order in which this group of changes would happen.
Answer:
2. The Prey Population increases:
As a result of the predator population decreasing in size, the prey will no longer be hunted as much and so their population will rise.
3. The area is overgrazed due to overpopulation.
With so much prey in the system, they will eat up too much of the grass and flora which will lead to overgrazing.
4. The prey population decreases
With the and being overgrazed, the system will no longer be able to support the large number of prey. A lot of them will therefore starve to death which will decrease the pray population.
5.Invasive species dominate the ecosystem.
With less competition for resources from the natural plants in the area which have now been overgrazed, invasive species will dominate the system.
Why do animals not have photosynthesis?
A: animals have cell walls
B: animals have vacuoles
C: animals have chloroplasts
D: animals do not have chloroplasts
Answer:
D
Explanation:
animals do not have chloroplast . chloroplast is that used to absorb sun light to do photosynthesis so plants have it so they can make their own food
pleasee help!:( im so behind
what are some of the challenges to the question "how did life first arise on earth?" why is this question a challenge to study ? write at least 3 complete sentences.
actual answers plz:(
The earliest known life forms fossilized microrganismos found in hydrothermal vent precipitates, that many have lived as early as 4.28gya relatively soon after oceans formed 4.41 gta, and not long after the formation of the earth.
starting in the 1980s many scientists argued that life got its start in scalding, mineral-rich waters streaming out of the deep sea hydrothermal vents evidence for hot start included studies on the tree of life which suggests that most primitive species of microorbs alive today thrive on hot water
earth was formed around 4.54 gya approximately 1/3 of the age of the universe, by accretion form the solar nebula, volcanic outgassing probably created the primordial atmosphere and then the ocean, but the early atmosphere contained no oxygen
hopefully this helps, sorry if it doesn't
Question 35 (1 point)
The proposed Enbridge pipeline across northern Minnesota is a high-profile industry
and environmental conflict. A sociologist who studies the phenomenon by examining
the interactions and forms of communication between members of the various
environmental and indigenous groups who oppose the new pipeline would most
likely use what theoretical approach?
Answer:
A socio-environmental approach would be used.
Explanation:
The sociological should use a socio-environmental approach to analyze the problem shown in the question above. This is because communication between indigenous communities, members of environmental groups and industry is a social problem that involves communication rather than understanding facts. However, this problem is generated by the environmental impact caused by the pipeline, which must also be analyzed and discussed. Due to this diversity of subjects, within this situation, the sociologist would be able to analyze everything more effectively through a socio-environmental approach.
the earth mother in the japanese mythology
Answer:
Meoto Iwa (夫婦岩), the Husband-and-Wife Couple or the Wedded Rocks, are a couple of small rocky stacks in the sea off Futami, Mie, Japan. They are joined by a shimenawa (a heavy rope of rice straw) and are considered sacred by worshippers at the neighbouring Futami Okitama Shrine (Futami Okitama Jinja(二見興玉神社). According to local lore and Shinto beliefs, the rocks represent the union of the creator kami, Izanagi and Izanami. Although the above Meioto Iwa rocks are the most famous ones, there are many other meioto iwa rocks to be found elsewhere in the japanese landscape, see More Unfamiliar Glimpses of Japan’s page on “Meioto iwa on husband and wife rocks“.
Such iconography and the idea of a Creator-Couple or Cosmic Couple is rampant throughout the ancient prehistoric world, and particularly widespread among the tribes of the Austro-Asiatics, the Austronesians as well as the Polynesians.
Explanation:
mark as brainlist
Help plzzzzz due tdy!!!!
Answer:
the first one: this is a reasonable claim and gives evidence
Answer:
Explanation:
This is a reasonable claim, but no evidence is given.
Which amino acid chain will formed by the codons shown below
AAU AAG GAC
Answer:
Explanation:
Asparagine- AAU
Lysine-AAG
Aspartic Acid- GAC
what factors limit the resolving power of light microscope
Answer:
Numerical Aperture
Explanation:
Numerical aperture determines the resolving power of an objective, but the total resolution of the entire microscope optical train is also dependent upon the numerical aperture of the substage condenser. The higher the numerical aperture of the total system, the better the resolution.
Please help me with number 2-5
Answer:
2. Heterozygous for that disease
3. 1/4 or 25% chance of the offspring having said disease
4. Nucleotides
5. The two strands are held together by hydrogen bonds between the bases.
explain how sexual reproduction
leads to increased variation from parent to offspring?
Sexual reproduction is the process of reproduction which leads to increased variation from parent to offspring through crossing over and fusion of gametes.
What is Sexual reproduction?Sexual reproduction is the production of new organisms through the combination of genetic information of two individuals of different sexes (male and female). In most of the species, genetic information is carried on by chromosomes in the nucleus of reproductive cells which are haploid (n) called as gametes, which then fuse to form a diploid zygote.
Sexual reproduction results in genetic variation among different offspring. When a parent forms a gamete, only one of the chromosome from each of the homologous pair is included at random through crossing over. So, an offspring might inherit a different combination of chromosomes and alleles compared to the other offspring.
Learn more about Sexual reproduction here:
https://brainly.com/question/7464705
#SPJ6