A woman who has had five preganacies tests positive for HIV by Western blot. What is the most likely reason for this result
Explanation:
Multiparous women often have HLA antibodies. The Western blot antigens are derived from HIV grown in human cell lines having HLA antigens. A cross reaction with HLA antigen(s) in the Western blot could have occurred.
Which of the following is the process of your body utilizing the energy in food?
Answer:
c. Metabolism
Explanation: is correct
how do you determine if an object will float or sink when placed in water?
Answer:
if the weight force down on the object is more than the upward push of the water then the object will sink, and reversed for rising
Explanation:
i found the answer online lol, hope this helps! :)
What are the parts of a leaf (plant cell) involved in photosynthesis?
Determine which situation could NOT be an example of interspecific competition.
A. Two organisms competing for food.
B. Two organisms competing for a mate.
C. Two organisms competing for water.
D. Two organisms competing over territory.
Answer: B. Two organisms competing for a mate
Explanation:
________ is the passing of traits from generation to generation while _________ is the scientific study of traits being passed from generation to generation.
Answer:
Heredity,Genetics
Explanation:
Heredity is the passing of traits from generation to generation while Genetics is the scientific study of traits being passed from generation to generation.
Traits are the defining characteristics that are passed from generation to generation, and genetics is a branch of science to study heredity.
What is genetics?Genetics is the branch of science to study heredity and evolution, how genes originate and what changes occur over time.
Genes are segments of DNA upon chromosome code for protein, in the genetics gene is the major area of study. How a gene can be transferred from parents to a daughter and lead to heredity can be studied.
Heredity depends on the gene responsible for a particular trait and character, during evolution, there would be changes occur at the genetic level which leads to variation among species.
Therefore heredity is to pass traits, and the scientific study of it is genetics.
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Which of the following is NOT part of the non-specific immune response?
A. Inflammation
B. Phagocytosis
C. Antibodies
D. Interferons
D. Interferons are not a part of the non-specific immune response.
What is the function of interferons?Interferons were first described as an antiviral thing that interferes with viral replication in mammalian cells (10). they're secreted from inflamed cells and spark off an innate immune reaction that promotes now not best cytokine production but additionally herbal killer mobile features and antigen presentation.
Interferons (IFNs) — the body's first line of antiviral defense — are cytokines that are secreted by host cells in reaction to virus infection. by using inducing the expression of hundreds of IFN-inspired genes, numerous of that have antiviral capabilities, IFNs block virus replication at many ranges.
Interferons are a circle of relatives of clearly-happening proteins which are made and secreted with the aid of cells of the immune gadget (an example, white blood cells, natural killer cells, fibroblasts, and epithelial cells).
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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.
Which of the following is a lipid-protein substance produced by neuroglial cells?
Answer:
Myelin
Explanation: is correct
Answer:
3: Myelin
Explanation:
NEED HELP NOW PLEASE
Answer:
"shown on the opposite page"
Explanation:
put that picture too
How is water split into hydrogen and oxygen during photosynthesis?
Explanation:
The chlorophyll's donated electrons need to be replaced, and these electrons come from the splitting of water. In a process called photolysis ('light' and 'split'), light energy and catalyst s interact to drive the splitting of water molecules into protons (H+), electrons, and oxygen gas.
Why do fossils that paleontologists find represent only a partial picture of life in the past?
Answer:
Because we cannot see some animals properly like jellyfish as their tissue is too soft, and feathers or for can often not make an imprint on fossils.
Explanation:
Answer:
Fossils: They are remains of animals or plants in the past that were somehow preserved and buried under the earth's crust.
One fossil can only give us a glimpse into the history of the time that particular animal or plant lived or breathed on the earth. For example, a fossil remains of a particular species of dinosaur would only provide information of the time when that species lived on earth and other information related to that particular time. Fossil remains of dinosaurs would not give us information on the time during the ice age or any other time in history.Explanation:
The study of various fossils can give us information about the development and evolution of living organisms over time but there are limitations to it.It may happen if we compare the fossil remains of an organism that existed billions of years ago we may find a time gap where there is no fossil evidence found so it creates a loop in information.Also, the process of fossilization is complex and long. Many species of the past became extinct without fossilization so we can never get information related to those extinct species.Thus, because of this reason we can say that fossils don't provide us with complete information about the past.For more information:
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What are organic reservoirs meaning.
The nuclear equation shows the transmutation of a form of radon into polonium and an alpha particle. In one tho two sentences, explain whether or not the reaction is balanced.
The equation is balanced because the mass and charge are equal on both sides of the reaction equation.
In a nuclear reaction, one nucleus is transformed into another. In this case of the equation shown, the radon nucleus is being transformed into a polonium nucleus with the emission of an alpha particle.
The equation is balanced because a total mass of 219 is found on both sides of the reaction equation and a total charge of 86. Recall that an alpha particle is the same as a helium nucleus with a mass of four units and a charge of two units.
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Which of the following describes a hot spot?
A chain of dormant volcanoes
A place that is prone to earthquakes
A particularly active region of plates
An area where magma is significantly hotter
Answer:
third one
Explanation:
what is a spygnomanometer ?
Answer:
an instrument for measuring blood pressure
Explanation:
an instrument for measuring blood pressure typically consisting of an inflatable rubber cuff which is applied to the arm and connected to a column of mercury next to a graduated scale, enabling the determination of systolic and diastolic blood pressure by increasing and gradually releasing the pressure in the cuff.
identufy the sephers that are inteacting in the following senario a plant carbon dioxide
Answer:
Increased Production of Photosynthesis
Explanation:
Carbon dioxide make plants more productive because photosynthesis relies on using the sun's energy to synthesise sugar out of carbon dioxide and water so a Carbon interaction with any plant species would alternate in photosynthesis. Plants and ecosystems use the sugar both as an energy source and as the basic building block for growth.
Dr. Martino's lab has been able to demonstrate that if they excessively stimulate a postsynaptic cell, it causes it to release a _____ transmitter that travels back to the presynaptic cell and modifies it.
Why is food web more practical in nature than food chain
Answer:
Hey mate.....
Explanation:
This is ur answer....
A food web is a more realistic way of portraying an ecosystem than a food chain because food chains imply that organisms only eat one type of organism which is rarely true. In a food chain predators occupy higher levels than their prey. Food webs are more complicated diagrams that are not purely linear.
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Proteins contain ___ different
amino acids, whereas DNA
and RNA are composed
of different ___ nucleotides.
Where in the cell would you expect to find the greatest activity of the pyruvate dehydrogenase complex?
Answer:
Mithochondria
Explanation:
In eukaryotes, the pyruvate dehydrogenase complex, like the enzymes for citric acid cycle and oxidation of fatty acids, is located in the mitochondrion, where is associated with the surface of the inner membrane facing the matrix.
In the cell, mitochondria are the place where it expects to find the greatest activity of the pyruvate dehydrogenase complex.
What is the pyruvate dehydrogenase complex?The three-enzyme complex known as the pyruvate dehydrogenase complex (PDC) is responsible for pyruvate carbonylation, which converts pyruvate to acetyl-CoA.
This complex connects the glycolysis metabolic pathway to the citric acid cycle by allowing acetyl-CoA to be used to perform cellular respiration.
The enzyme pyruvate dehydrogenase catalyzes the reaction between pyruvate and a lipoamide, which yields acetylated dihydrolipoamide and carbon dioxide. The process requires the coenzyme thiamine pyrophosphate.
Therefore, the site where you find the greatest activity of the pyruvate dehydrogenase complex is mitochondria.
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What is the two-layer membrane surrounding the nucleus that controls what materials go into and
out of the nucleus?
Answer:
Is the nuclear envelope.
Explanation:
if you were to trace the blood flow from the heart to the obturator artery, which vessel would NOT be found along the pathway
Answer:
ur mum
Explanation:
The written way the author intended his or her story to be The way a person might understand a story or bring it to life The most popular way a story has been recorded on the screen The process of writing a story and then getting it published
Which type of interaction is described below? ________ interactions occur between individuals of two or more different species.
what is the main difference between a biome and an ecosystem
An ecosystem is quite smaller than a biome and exists within a biome.
A biome refers to a large habitat ocupied by assorted fauna and flora. Biomes are classified based on abiotic conditions such as temperature, soil types, rainfall etc. An ecosystem is a self supporting unit in which materials and energy are exchanged within the system.
The difference between a biome and an ecosystem is that a biome is a collection of different ecosystems that are found within a habitat while an ecosystem is composed of living and nonliving factors. An ecosystem is quite smaller than a biome and exists within a biome.
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The ____________ receives the filtrate from the DCTs of several nephrons and funnels it toward the ____________ .
Answer:
collecting duct, renal pyramid
Explanation:
The collecting duct receives the filtrate from the DCTs of several nephrons and funnels it toward the renal pyramid.
URGENT MY PROJECT IS DUE TOMORROW
IS CELL REPLICATION BASICALLY MITOSIS?
Answer:
no the cell are not replication mitosis as 800000 cell die and reproduce each second
In which process are glucose and oxygen the reactants?
cellular respiration
photosynthesis
ATP production
ADP production
Answer: Photosynthesis
Explanation:
if sodium hydroxide is left alone what state would it turn into ?
Answer:
It will react with the carbon dioxide that is in the air
Explanation:
When it reacts it will turn to sodium carbonate
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Section 3: For at least one of the sub-problems, propose two solutions based on the information from the lesson and your additional research. In the rationale column, explain how your solution restores the stability and biodiversity of your selected ecosystem.
Removal of invasive species and growing more vegetation can restore the stability and biodiversity of ecosystem.
These two solutions restores the stability and biodiversity of the selected ecosystem because invasive species can capture more resources as compared to local species which leads to the extinction of local species.
While on the other hand, growing more vegetation provides more food to the organisms which ultimately increases the biodiversity of the ecosystem so we can conclude that removal of invasive species and growing more vegetation are the solutions to bring ecosystem in a stable condition.
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