Answer:
) Presence of specific glycoproteins on the cell membrane
Explanation:
When specif glycoproteins(antigens) or antibody are present on a cell membrane of Red blood cell,they can be used to identify the blood type.Antigens are substances capable of triggering an immune response in a cells.
In addition,they function in transport of molecules across the RBC. They help in the maintenance of the RBC,and aiding the arrest of cells capable of causing diseases to the body.
Therefore,they are good determinants of blood types,based on this two types of antigens present in a blood type.
These two antigens used for classification of blood types are the 1-the ABO antigens 2,the Rhesus antigens.
Essentially,when a WBC produces an antibody ,which is a molecule that defends the body,If this is not compatible,the antibody will recognize it as a foreign body and attack it.Thus such blood types are not compatible. Thus the antibody-antigen reaction are good for knowing and classify blood types.
Antigen can also be glycoprotein,carbohydrate or glycolipids.
Generally blood types are inherited from both parents.Therefore the antigen present on the RBC are combination of the alleles from each parent.
A dependent variable is:
A measured to show the effect of a change
B kept the same to make and experiment a fair test
C collected to draw conclusions
D changed to test a hypothesis
Answer:
A. measured to show the effect of a change
Explanation:
A dependent variable is the variable tested in an experiment to show how the change in the independent variable affects the dependent variable.
Answer:
Dependent variable is the variable that changes. It is the only thing that changes in an experiment. That way the if a change occurs the reason is obvious because only one thing changed. The answer would be A.
Which feature is created by wave erosion?
O loess
O delta
O rill
O stack
Answer:
stack
Explanation:
A stack is a rock in the sea near a coast that is formed by wave erosion.
A feature created by wave erosion is stack. Option D. This is further explained below.
What is wave erosion?Generally, Wave erosion is simply defined as waves creating a variety of landforms along a shoreline. Sea cliffs occur when waves erode rock, resulting in high slopes.
In conclusion, a stack is a feature of wave erosion.
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Which process produces two copies of the original DNA molecule?
O A. DNA ligation
B. DNA transcription
C. DNA translation
O D. DNA replication
SUBMIT
Answer:
The answer is option D.
DNA replicationHope this helps you
Match each term about wind erosion and deposition with its description.
abrasion
a deposit of fine, mineral-rich soil that is
good for agriculture
deflation
sand deposited against an obstruction
sand dune
the process by which wind moves particles
that are loose
the process by which wind wears down
solid objects
loess
loess - a deposit of fine, mineral-rich soil that is good for agriculture
deflation - the process by which wind moves particles that are loose
sand dune - sand deposited against an obstruction
abrasion - the process by which wind wears down solid objects
Plz mark brainliest :)
Answer:
abrasion- the process by which wind wears down solid objects.
sand dune- sand deposited against an obstruction.
deflation- the process by which wind moves particles that are loose.
loess- a deposit of fine, mineral-rich soil that is good for agriculture.
Explanation:
edge 2020
Romantic movement aspire writers such as
Answer:
Emily Dickinson
Explanation:
Emily Dickinson was a poet who was inspired by the romantic movement, she used romanticism in her poems.
Answer:
Emily Dickinson
Explanation:
emily dickinson was inspired by the romantic movement
Which describes absorption?
Answer:
Absorption. Absorption, in general sense, is the act or process of absorbing or assimilating. In biology, absorption pertains particularly to the process of absorbing or assimilating substances into the cell or across the tissues and organs. It is done through diffusion or osmosis.
Explanation:
Answer:
A sponge
Explanation:
Because when the sponge is applied pressure around water, or air, the pressure from around the sponge sucks back into the sponge making the sponge fluffed or wet if put in water.
3 types of protozoan diseases and their causative parasites
Answer:
Malaria, Leishmaniasis, and Toxoplasmosis.
Malaria is caused by Plasmodium parasites.
Leishmaniasis is caused by infection with Leishmania parasites.
Toxoplasmosis is an infection caused by a parasite that is called Toxoplasma gondii.
what kind of cells can develop from pluripotent stem cells?
Answer:
Pluripotent cells can give rise to all of the cell types that make up the body; embryonic stem cells are considered pluripotent. Multipotent cells can develop into more than one cell type, but are more limited than pluripotent cells; adult stem cells and cord blood stem cells are considered multipotent.
To raise an arm upward, the muscle on one side of its contracts. What happens to the muscle on the opposite side of the arm? A.contracts B.relaxes C.both contracts and relaxes D.neither contracts nor relaxes
Answer:
Relaxes
Explanation:
The other side doesn’t do anything
The quarrel between the Capulets and Mantagues has been going on for a long time when the play opens.
OTrue
O False
Answer: True
Explanation:
Phospholipids are molecules that have two regions, the head and the tail, with distinct chemical properties. Classify the descriptions as characteristics of the heads or tails of phospholipids.
Answer:
The head is described as being hydrophilic and polar . Whereas the tail region is hydrophobic (i.e., it does not interact with water) and is rich in hydrocarbons.
Explanation:
These particular properties of the phospholipid molecule is what allows for the structure of membrane to be possible. The phospholipid bi-layer is what holds the cell together so its importance cannot possibly be overstated!
Foot-and-mouth disease virus (FMDV) causes severe disease in pigs, cattle, sheep and goats. High levels of FMDV infection can threaten the livestock industry. Which of the following statements best describes how FMDV reproduces in its livestock host? A. It uses the animal’s cellular machinery to reproduce inside the animal. B. It kills the animal and feeds on its carcass. C.It releases spores into the animal’s digestive tract. D. It produces eggs that are shed on the ground with the animal’s wastes. brainliest to the correct answer
Answer:
A. It uses the animal’s cellular machinery to reproduce inside the animal.
Explanation:
I would go with A because since it is a virus it cannot live outside the body and thus needs to rely on host's cell for metabolism as viruses are not capable of having their own metabolism.
Answer:
A. It uses the animal’s cellular machinery to reproduce inside the animal.
Explanation:
khan
Un marido acusa a su esposa de infidelidad y pide la custodia de sus dos primeros hijos mientras que rechaza al tercero afirmando que no es suyo. El primero hijo es del grupo sanguineo O, el segundo del grupo sanguineo B y el tercero del grupo AB. El marido es del grupo sanguineo O y la mijer del grupo B ¿crees que la acusacion del hombre esta fundada?
Answer:
La afirmación es correcta, el hijo con el grupo sanguíneo AB no es suyo.
Explanation:
Siendo el padre del grupo sanguíneo O, sabemos que el gen es recesivo por lo que la codificación para dicho gen, a su vez es homocigota.
Dicho esto el cromosoma Y (u X), del padre aporta O a sus hijos.
Siendo la madre del grupo sanguíneo B, podría ser homocigota dominante, aportando únicamente B, pero cómo B domina a O, nunca podría haber un hijo con grupo sanguíneo O. En conclusión la madre es heterocigota dominate, donde el gen codifica para O y para B. Finalmente podrán tener dos hijos:
- Un hijo que será O, ya que los cromosomas de madre y padre aportarán el O por igual
- Y el otro hijo será B, ya que el padre aportará O, pero el gen B de la madre es el dominante.
No hay forma que hayan tenido un hijo con grupo sanguíneo AB ya que el gen para grupo A no está en ningún padre
What is one disadvantage of using solar energy?
A. Solar energy produces greenhouse gases.
B. Solar panels are very inexpensive.
C. Solar energy is available only in the summer.
D. Solar panels work well only in sunny areas.
Answer:
A. Solar energy produces greenhouse gases.
Explanation:
Solar energy produces Infrared radiation. Which is the outgoing heat from earth to space during the night.
What set of fitness levels most likely produced the allele graph shown below?
A. Fitness of DD 60%, Dd 75%, and dd 100%
B. Fitness of DD 100%, Dd 60%, and dd 80%
C. Fitness of DD 75%, Dd 60%, and dd 100%
D. Fitness of DD 70%, Dd 100%, and dd 70%
Answer:
D. Fitness of DD 70%, Dd 100%, and dd 70%
Explanation:
Further explanation is posted as an attachment due to technical difficulties.
Answer:D
Explanation:
The cells in this part of a plant form long, vertical tubes. What is the most
likely relationship between the structure and function of these specialized
cells?
A. The tubes allow the plant to absorb sunlight for photosynthesis.
B. The tubes prevent potential damage to the leaves caused by
strong winds.
C. The tubes prevent water loss from the leaves.
D. The tubes allow water and nutrients to be transported throughout
the plant
Answer:
D. The tubes allow water and nutrients to be transported throughout
the plant.
Explanation:
option D supports the description of the cells. The long , vertical tubes transport water and nutrients and are most likely xylem and phloem vessels.
option A is wrong since, chloroplasts inside the cell helps in absorbing sunlight.
option C is also wrong, because water loss is controlled by the stomata in the leaves and they are not long tubes.
option B could possibly be right but option D is better suited.
Answer:
The tubes allow water and nutrients to be transported throughout
the plant.
Explanation:
Ape-x
Use the drop-down menus to complete each statement
Both gonorrhea and
✓ have similar symptoms.
V is characterized by three progressive stages: primary, secondary, and tertiary.
People infected with
often have no symptoms.
Answer:
in photo.
Explanation:
Which method best helps to prevent wind erosion?
rotating crops
decreasing riverbank slopes
growing more vegetation
avoiding soil compaction
Answer:
Growing more vegetation
Explanation:
Soil erosion by wind occurs anywhere when vegetation and climatic conditions are conducive. These conditions include presence of very strong winds and when the soil is loose, dry, and is composed of fine granulated particles.
It also occurs when the soil surface is relatively smooth and there is sparse or no vegetative. It can also occur where there are large fields with no windbreak mechanisms in place.
The best way to reduce wind erosion is to keep the wind off the soil surface by covering the soil surface. This involves growing of more vegetation, either cash crops or cover crops which serves to protect the soil and keep the winds higher off the surface.
Also trees can be planted around the farms to serve as wind breaks which breaks or reduces the force of the winds.
Also, soil compaction which is the process of increasing the density of soil by packing the soil particles closer together causing a reduction in the volume of air can help to prevent wind erosion.
From the given options above, the best option would be growing more vegetation.
Practicing crop rotation serves to preserve soil nutrients and prevent diseases.
Decreasing riverbank slopes prevents erosion by water.
Avoiding soil compaction would lead to more erosion by wind.
Answer:
rotaiting crops i took the test
Explanation:
If a sperm cell were produced by mitosis rather than meiosis, the offspring receiving that sperm cell most likely would:
A. grow larger because it had extra chromosomes.
B. have fewer chromosomes than either of its parents.
C. grow poorly with an incorrect number of chromosomes.
D. have more chromosomes than either of its parents.
Answer:
d
Explanation:
i took the test
Pea plants are tall if they have the genotype TT or Tt, and they are short if they have the genotype tt. A tall plant is mated with a short plant. Half the offspring are tall, and half are short. This allows us to conclude that the tall plant is __________.
Answer:
heterozygous
Explanation:
Has the Clements successional theory been subjected to peer review and publication?
Answer:
Yes the Clements successional theory has been subjected to peer review and publication
Yes, the Clements successional theory been subjected to peer review and publication.
What is Clements successional theory?Plant succession was characterised by Clements as a developmental process that, during the course of a community, it went through a well-defined series of stages that, in the end, resulted in a mature community, also known as the climax community. The climatic conditions that determined the climax community's existence manifested themselves in the form of an indicator and an expression of that community.
His hypothesis of community formation, sometimes known as plant succession, is what brought Clements the most fame. Even after World War II, Clements' organicism and physiological perspective were still around, albeit in a watered-down version, despite the fact that it was extensively discredited by later ecologists.
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1. What is the significance of the reason rule and sequencing?
Explanation:
A biological sequence may be defined as a single but a continuous molecule of a protein or a nucleic acid. It can be a genetic map or an actual sequence of the amino acids or the nucleic acids. It can also be some more complicated data structure building of a composite view from other entries.
Sequencing is mostly used in molecular biology for studying the genomes and proteins that they encode.
The reason rule is the law of antitrust that says that a trade practice which violates the Act of Sherman only if that practice is the unreasonable restraint of some trade which is based on some factors.
What is the function of the cytoplasm in a eukaryotic cell?
Answer:
cytoplasm present in the cell Jelly like structure occupy the majority of volume of the cell it is function as it'set energy production , storage and manufacturing of cellular components
Answer:
The function of cytoplasm in eukaryotic cells is to hold all of the cell's organelles in a jelly-like substance.
Explanation:
The plasma membrane of the cell also helps maintain the cytoplasm of the cell and provides the organelles with a gel-like environment. The cytoplasm is the site of most cellular processes such as metabolism, protein folding, and internal transport.
scientific research about the carbon cycle and global warming would be most valuable if the results
Answer:
if the results are efficient in answering the problems raised in the research and if they manage to come to terms with the hypotheses.
Explanation:
As you may know, scientific research must be done through several steps that allow an experiment to be carried out in order to reach conclusions on a certain topic.
In research on the carbon cycle and global warming, it is necessary for the researcher to raise problems and questions about this topic, as well as to raise hypotheses that must be directly related to the results of the experiment. If the result of the experiment is efficient in answering the research problems and questions, in addition to being able to agree with the presented hypotheses, it means that the research has value within the scientific branch in which it fits, in addition to showing that the experiment was done correctly.
sketch and label a eukaryotic cell for animal and plant
Answer:
Here is a diagram of eukaryotic cells! hope it helps
Explanation:
please help! Really stuck
Fossil fuel and nuclear plants both heat water in order to turn _____?
O A. turbines
O B. solar panels
DO O C
O C. reserves
D. windmills
Answer:
i thinkits no a .to turn turbines.
Which statement correctly describes the process that occurs in the thylakoid? ATP is produced in the thylakoid during light-independent reactions. ATP is produced in the thylakoid during light-dependent reactions. ADP and glucose are produced in the thylakoid during light-independent reactions. ADP and glucose are produced in the thylakoid during light-dependent reactions.
Answer:B
Explanation:
i did it on study island
which best describes a g a m e t e
Answer:
A Gamete contains only a single (haploid) a set of chromosomes.
Explanation:
Because the two common gametes are sperm and ova
3. The normal breaths per minute for a person is called _________________ of that person.
Answer:
Respiratory rate of that person.
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