Answer:
In other covalent bonds, electrons are shared equally. These bonds are called nonpolar bonds. Neither atom attracts the shared electrons more strongly.
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.
yoooo im begging yall this is the only thing they give me 5th time putting this here
Answer:
hmm, I'm struggling here.
Explanation:
Explain why do you think most energy pyramids have less than five levels?
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:
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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.
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
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(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:
b . c y a q
Explanation: i . need points srry
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.
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.
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What conclusion about Mars can you draw from the article?
Explanation:
mars may have once been a weet world like earth . the latest from mars it also will be the first spacecraft to collect samples of the martian surface
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.
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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
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.
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:
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
what does divine creation mean? did charles darwin agree with this idea?
Answer:
The term creationism most often refers to belief in special creation; the claim that the universe and lifeforms were created as they exist today by divine action, and On the Origin of Species reflects theological views. Though he thought of religion as a tribal survival strategy, Darwin still believed that God was the ultimate lawgiver, and later recollected that at the time he was convinced of the existence of God as a First Cause and deserved to be called a theist.
Explanation:
Which amino acid chain will formed by the codons shown below
AAU AAG GAC
Answer:
Explanation:
Asparagine- AAU
Lysine-AAG
Aspartic Acid- GAC
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.
Sophia is an inspector for the state agriculture department. She goes out to pig farms and cattle ranches to make sure that state regulations are being followed. What word describes the type of products Sophia is inspecting?
A.) Livestock
B.) Crops
C.) Non-perishables
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.
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
Hey guys, could you help me with some of these questions please!
1. If a protein coding portion of a processed piece of RNA is 450 bases long with a stop codon at the end, how many amino acids will be formed in its corresponding polypeptide?
2. A hypothetical mRNA sequence has 27 codons, with a start codon at the beginning and a stop codon occupying the 13th codon and 27th codon.
3. How may proteins will be translated from this mRNA sequence and how many amino acids will they contain?
4. What will be the 1st amino acid of the translated proteins?
5. How many nucleotides are in the original mRNA sequence?
Answer:
charged RNA has an amino acid at one end, and at the other end it has an ... If a codon were two nucleotides, the set of all combinations could encode only ... code allows one to predict the amino acid sequence of any sequenced gene.
Explanation:
GTA ATC TCT CTG TAA
What would the opposite DNA strand be?
Which statement is true about the effect of red tide or algal bloom on the ecosystem?
A) produces toxins that can harm aquatic life
B) decreases amount of oxygen for aquatic producers
C) decreases aquatic food source for humans
D) all of the above
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
If 6.6 tyrannosaurs weigh 30,000 kg, then what does one tyrannosaur weigh?
Answer:
4,545
Explanation:
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why chilli has a dicotyledonous root
Answer:
cz
Explanation:
Dicots usually have taproot root systems. Chilli Plants are Perennials, a group that includes most vascular plants such as trees and shrubs, continue to grow over the course of many years. In most perennial plants, flowering and seed production occurs continually for an indefinite number of seasons.
What happens to DNA in the interphase stage of cell division?
Answer:
During interphase, the cell copies its DNA in preparation for mitosis. Interphase is the 'daily living' or metabolic phase of the cell, in which the cell obtains nutrients and metabolizes them, grows, replicates its DNA, and conducts other "normal" cell functions. Interphase was formerly called the resting phase.
Explanation:
what happens when an HIV infection occurs?
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.