Why is blood type AB+ considered the universal receiver?
O It has no antibodies that can attack the antigens on the red blood cells of the other blood types.
It has no antigen on its red blood cells that can be attacked by the antibodies in the other blood types.
o It has no Rh antigen on its red blood cells that can be attacked by the antibodies in the other blood types.
O It has no A and B antigens on its red blood cells that can be attacked by the antibodies in the other blood types.
Answer:
the first one: It has no antibodies that can attack the antigens on the red blood cells of the other blood types.
Explanation:
edge 2021
AB positive and O negative are considered as universal blood types. AB+ has no antibodies that can attack the antigens on the red blood cells of the other blood types. The correct option is A.
What is universal receiver?The people with AB+ blood group are called as the universal receivers. They can safely receive a blood transfusion using any other blood type. Having a universal blood type can save a life of yours or someone else in an emergency.
If you have an AB+ blood type, you have both A and B antigens. Since a person has all of the antigens that are possible, this blood type is the rarest. The AB+ blood type has a positive Rh factor, the recipient will not reject the blood. So it can get any type of blood.
AB type blood has no antibodies against type A or type B blood. So a person with AB blood can receive any type of blood.
Thus the correct option is A.
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Point mutations resulting in a single amino acid substitution provided evidence that: Select one: A. The genetic code is a triplet code. B. The genetic code is overlapping. C. The genetic code is not overlapping. D. The genetic code is degenerate. E. tRNAs recognize codons.
Answer:
C. The genetic code is not overlapping.
Explanation:
The genetic code is nonoverlapping because each nucleotide can be part of only one codon or 'codeword' during protein synthesis. Therefore, a particular point mutation in the nucleotide sequence can result in only one amino acid modification. A nonoverlapping genetic code indicates that the same letter (i.e., the same nucleotide) can not be used for two different codons. The non-overlapping nature of the genetic code was discovered by Tsugita and Fraenkel-Conrat (1960) by observing point mutations in the tobacco mosaic virus.
A change or modification in the single nucleotide base of the genetic material is called a point mutation. It can be either addition, deletion or inversion.
The correct answer is:
Option C. The genetic code is not overlapping.
This can be explained as:
The point mutation in the amino sequence tells that the codons are not overlapping and a single nucleotide is a part of only a single type of codon.A single nucleotide can't be included in two codons.The same letters of the bases purines and pyrimidines are not a part of two different triplets.Therefore, point mutation tells that the genetic code is non-overlapping.
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7. Explain why it is important for animals to be able to communicate with one another in order to mate and reproduce.
discuss why apes are considered the most closely related organisms to humans. Use evidence to back up your answer.
Answer:
Apes are considered the most closely related organisms to humans because we share so much dna. For example, we share 99% of our DNA with Chimpanzees. On average, human beings share 65% of our dna with other mammals but apes are a much higher percentage, on average in the higher 90's.
Explanation:
Match the words to the definitions
Identify this molecule. What is it the monomer of? This is an amino acid, and it is the monomer of a Protein. This is a nucleotide, and it is the monomer of DNA. This is a nucleotide, and it is the monomer of a Protein. This is an amino acid, and it is the monomer of DNA.
Answer:
This is the monomer of DNA
Explanation:
All three of these groups help make up the component DNA.
In some cases, a trait is determined by multiple alleles interacting. in rabbits, coat color is one of those traits. Therefore alleles for color color each of which causes a different phenotype. Exam in the table below and answer the question. A Himalayan and a chinchilla mate, and some of the resulting offspring are white. What
must the genotypes of the parents be?
Answer:
I would think it would be the third answer but don't count on that
comment something if you feel like this when someone talks to you on Monday mornings lol
Answer:
yes
Explanation:
HELP ASAPP‼️‼️‼️‼️IT WOULD BE GREATLY APPRECIATED
Answer:
b
Explanation:
It's part of RNA
Answer:
B
Explanation:
When DNA goes to RNA, you have to find the matching pair. G goes to C, A to U, T to A, and C to G. Ask for any clarification!
Which term best describes a group of cells that are similar in composition and function together to perform a task?
Answer:
B. Tissue
Explanation:
Tissue is defined as " a group of similar cells that have a common function."
When water evaporates from plants through leaves, it diffuses through tiny openings called stomatal pores. If the water vapor needs to diffuse a distance L through one pore to exit the leaf in a time t, what is the time needed for water vapor from the same leaf to diffuse through another pore of length 1.30 L
Answer:
L means same time.
Explanation:
Same time is needed for water vapor from the same leaf to diffuse through another pore of length 1.30 L because the evaporation takes place at the same time in the pore and water is evaporated to the atmosphere but more water is evaporated due to increase of surface area as compared to the other pore that have small opening so the time is same but the amount of water evaporated is different.
The sun has many different layers that describe its structure. In which layer is the temperature of the sun cooler than the core and dense enough that thermal radiation is sufficient to transfer the intense heat of the core outward?
A. photosphere
B. convection zone
C. radiation zone
D.photosphere
stars.
• What type of star has a high temperature but a low luminosity?
Help
Answer: White Dwarf 18
Explanation:
Answer:
white dwarf
Explanation:
they have a high temp but a low luminosity
Where does biology become a person?
Answer:
What do you mean i'll help you but you need to be more specific
Explanation:
Carbon dioxide emissions cause ocean acidification. Ocean acidification reduces coral growth. If ocean acidification continues, corals may become extinct. This is an example of a/an ___________ type of cause of extinction.
A)
population risk
B)
environmental risk
C)
natural catastrophe
D)
genetic risk
Answer:
B) environmental risk
Explanation:
got it right on edge
How did Mendel prevent flowers from self pollinating in his experiments
please help
this is any multicellular living thing that obtains energy from sunlight or makes it own food
= ??
Which of the following reasons for studying botany is most directly related to increased profits?
O Studying botany helps companies develop more abundant food crops for less investment.
O Studying botany can help us keep our forests healthy.
O Studying botany provides a chance to go on to graduate school.
O Studying botany tells us more about our place in nature.
Answer: Studying botany helps companies develop more abundant food crops for less investment
Explanation:
The reasons for studying botany that is most directly related to increased profits was that "Studying botany helps companies develop more abundant food crops for less investment".
Since more food crops are gotten for less investment, it ultimately means that there'll be a reduction in the cost which will hence lead to an increase in revenue and therefore there'll be an increase in profit.
The table below Anton Leeuwenhoek devised a primitive microscope to observe a sample of his tooth scrapings. How did this help contribute to cell theory?
It helped to show that cells cannot function independently.
It helped to show that some bacteria can swim like fish.
It helped to show that some bacteria are just one cell.
It helped to show that cells can be created from thin air. shows the average wind speeds of four hurricanes in Florida.
Answer:
The correct answer is - option C.
Explanation:
Anton Leeuwenhoek observed the presence of organisms in his tooth scratch or scrapings under the primitive microscope made by himself. At that time there was no knowledge about the bacteria and he named these small creatures as animalcules. These animalcules were bacteria actually.
These creatures were single-cell organisms and able to perform the function as an entity and postulate that bacteria is a single which is a fundamental unit of function and structure of all living organisms.
How does ENERGY enter a food chain?
Answer:through the sun
Explanation:the sun gives off energy which it goes to the plants and etc.
The type of eating disorder characterized by episodes of bingeing and purging is
anorexia nervosa.
ОА.
ОВ. .
bulimia nervosa.
oc. compulsive eating disorder.
D. binge-eating disorder
Answer:
The answer is Bulimia Nervosa
The type of eating disorder characterized by episodes of bingeing and purging is bulimia nervosa.
What is eating disorder?Eating disorder means overeating of food which changes the lifestyle.
What is characterized?Characterized means describing the nature.
What is episodes?Episodes means events which occur in parts or in a sequence.
What is bingeing?Bingeing is the controlled eating.
What is purging?Purging is the method of vomiting.
What is bulimia nervosa?Bulimia nervosa is an eating disorder.
Hence the correct option is (B).
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Select the correct text in the passage.
Pick out the sentences that correctly describe marine mammals.
Marine mammals are endothermic, or warm-blooded. Species such as whales breathe air though their gills. They have a thick layer of blubber
that helps maintain buoyancy. They can stay underwater indefinitely. Dolphins are a type of toothed whale. Baleen whales feed on large fish
and sometimes seals.
Marine mammals are endothermic. I think that's the correct answer 'cause they can produce their own body heat (which therefore means that they are warm-blooded) and they can keep at a stable temperature even in harsh conditions. Plus, whales don't have gills b/c they are mammals (and mammals don't have gills), not all mammals have blubber (it's mainly penguins and seals), marine mammals can stay underwater for a long amount of time...but they eventually need to come up for air, and baleen acts like a "filter"; it "filter" and separates the water from the krill/microorganisms.
Hope this helps! :)
is photosynthesis a carbon sink?
Answer:
yes it does sink
Explanation:
How are bees vital to our ecosystem? Describe what could happen if bees were to disappear from ecosystem Earth and what the consequences would be. In general, use WHO, WHAT, WHEN, WHERE, and WHY “are bees” DYING off. Lastly, how could We as humans integrate Bee hives efficiency in our own society?
Answer:
They are pollinators.
Explanation:
Bees are vital to our ecosystem because they are pollinators and due to this pollination, these bees are responsible for the presence of trees, shrubs and other small plants etc. if bees were to disappear from ecosystem Earth then the whole world is adversely affected because trees can't produces fruits and seeds so after sometime animals die due to unavailability of food. Human activities are responsible for the death of these bees because human activities causes pollution which is not good for bees. We have to make a safe place for bees and grow as many flowers as you can in order to increase their population.
Using the concepts of chain of custody it is important to (multiple answer) A. document everyone who has handled the evidence prior to a trial B. record the dates and times of the possession of the evidence C. have a complete inventory of the evidence D. weight all of the evidence E. seal all of the evidence in air tight bags
Answer:
A. document everyone who has handled the evidence prior to a trial
Explanation:
A chain of custody can be defined as a paper trail containing the chronological order of items of evidence and how they have been handled, controlled, transferred, analyzed, and disposed during the investigation of a case.
This ultimately implies that, a chain of custody contains all the details or informations regarding the investigators (people) who handled, controlled, transferred, analyzed, and disposed an evidence in the course of carrying out investigations on a particular case. The most important and significant part of an investigation is the evidence because it helps to unravel the truth and facts relating to a case. Therefore, it is very important and essential to document and maintain a chain of custody so as to preserve the evidence.
Hence, using the concepts of chain of custody it is important to document everyone who has handled the evidence prior to a trial.
what re stomata?how do they help leaves tomae food.
love you all
Answer:
Stomata allow a plant to take in carbon dioxide, which is needed for photosynthesis. They also help to reduce water loss by closing when conditions are hot or dry. Stomata look like tiny mouths which open and close as they assist in transpiration.
:)
how does the issues/ problem affect the government
Can someone answer these two questions pleaseeee?
Answer:
7). Herbaceous
8). Phloem
Explanation:
7). Herbaceous stems are soft and can be moved around just like those flowers.
8) . Xylem is not a living tissue.
Pls mark brainliest <3
The second one on each one I think
PLEASE HELP ME OUT WITH THIS!!
they only able to get extra Nutrients frome the rain
Discuss the difference between improvisation and adaptability
Answer:
Adapting is when you slowly adapt to the environment or the thing you are doing, while improvisation is when you improvise in order to achieve success in a shorter amount of time.
Explanation: