Answer:
In adult organisms the regenerative capacity of certain organs or tissues can be limited, resulting in an important clinical challenge for physicians and scientists [1-3].
Regeneration involves the capacity for renewal or recomposition of tissues, organs or even organisms, after considerable physical injury or damage, resulting from pathologies, tumors, congenital diseases or traumas, for example. As a consequence of tissue regeneration, both the composition and the tissue properties are restored, and the newly formed tissue is highly similar to the original tissue. The regenerative capacity is directly related to the presence of stem cells or progenitor cells, which are capable of proliferation and differentiation [4,5]. Tissues that maintain a high proliferative capacity, such as the hematopoietic system, have regenerative capacity even in adult organisms [6].
Cell proliferation occurs in repair processes in general, accompanied by intense production of extracellular matrix, with large amounts of collagen, resulting in the formation of fibrous tissue to occupy the injured area. Although there is lesion filling, both the composition and the tissue properties are different from the original tissue, and the tissue organization pattern is not restored, leading to an altered performance of its functions [2]. Skin healing processes with the presence of scars are examples of tissue repair [3].
Besides the natural processes of regeneration and repair, it is possible, through medical intervention, to fill lesions with natural or synthetic materials, aiming at the recovery of the compromised area, and conferring certain properties to the tissue, avoiding, for example, exacerbation of the initial lesion or the evolution of degenerative processes [1,7].
The three approaches can be used in tissue engineering, targeting regenerative medicine, as they allow the recovery of compromised areas in different degrees. However, the primary objective is regeneration, recomposition of the original tissue and resumption of the biomechanical and molecular properties, with the normal performance of their functions [1,7-8].
Tissue regeneration involves cell recruitment, growth, proliferation and differentiation, with the latter representing a crucial stage for the success of regeneration, avoiding the formation of fibrous tissue characteristic of the repair [9-12]. Tissues with greater regenerative capacity, such as the skin and liver, intrinsically present cells able to migrate to occupy the affected region, and the same cells maintain the proliferative capacity, enabling occupation of the lesion [3]. In other tissues the regenerative capacity is even more impaired. In the cartilage, for example, the cells remain embedded in the extracellular matrix, and the absence of blood vessels inhibits the presence of other types of component cell in the tissue; even the cell migration and proliferation processes are compromised. In general, regeneration and repair processes do not occur naturally in these cases, requiring surgical intervention to stimulate the subchondral bone marrow, thus enabling the presence of cells capable of tissue repair in the compromised area [13]. Other scientific techniques and methodologies seek alternatives to enable the processes both of repair and of tissue regeneration [9-12,14-16].
Anyhow the final stage of the abovementioned processes, cell differentiation, is critical. An understanding of the mechanisms that lead to the differentiation process in adult organisms allows the proposition of improvements in existing technologies and of alternatives geared towards the optimization of guided tissue regeneration processes, in regenerative medicine.
What would happen to the populations of the other three organisms in the food chain if the number of large fish rapidly decreased?
Answer:
the food chain will be broken
b. “Glycolysis occurs in the cytosol of the cell and does not require
oxygen.” Other word(s) for require:
In a cladogram, what represents the most recent common ancestor shared by a clade?
a. a mark by the clade's derived character
b. the overlapping of one clade upon another
c. the longest branch
d. the node where branches meet
Answer: It's D
Explanation:
Describe the steps from ovulation through implantation in the uterine wall. How does hormonal control of these steps occur?
Where in the cell is protein pumps located ??
Answer:
cell membrane
Explanation:
There are thousands of proteins embedded in the cell's lipid bilayer
If an ecosystem like the wetlands was in danger of collapsing, what could I do to fix it?
Answer: The development and adoption of new technologies or production models that are less resource-intensive and/or less polluting could reduce the risk of ecological collapse, as would a shift towards more sustainable lifestyles, more specifically changing consumption patterns, possibly accompanied by behaviour change.
Explanation:
35
Which best describes another name for an organism that is heterozygous for a trait?
A recessive
IN
B hybrid
purebred
D) dominant
Answer:
pretty sure hybrid
how are pressure systems are different from fronts. I need this answer right away
_________ are weak bonds that hold the two strands of DNA together, but also allow the DNA to separate and replicate.
Answer:
hydrogen bonds!
Explanation:
taking the exam rn :)
True or False: New DNA is copied from existing DNA
Answer:
True.
Explanation:
Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. To accomplish this, each strand of existing DNA acts as a template for replication.
1. Which of the following functions is the cell membrane responsible for? (Choose all that apply) containing the cell U protecting the cell regulating the cell's interaction with its surroundings housing hereditary information
Answer:
The First three answers are correct. (The last one refers to the nucleus which is also inside the cell membrane so i don't know if it's correct)
All of the options are correct for the function of cell membrane.
What is cell membrane?The cell membrane is a thin selectively semi-permeable membrane an outer covering of a cell by surrounding cell cytoplasm.
Proteins and lipids are the major components of cell membrane where as the ratio of protein to lipid in cell membrane may vary depending on types of cells.
The most common lipid in membrane is phospholipid, which form a semi-permeable lipid bilayer.
The function of cell membrane is to protect the integrity of the internal environment of the cell, act as a base of attachment for the cytoskeleton in some organisms resulted in support cell and maintain its shape.
It helps in transport of nutrients into the cell and transport of toxic substances out of the cell due to its selectively permeable nature.
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how will building a road through the rainforest affect logging companies?
Answer:
The loggers will chop the trees, they will make money which would help the ecosystem. Although the earth would get warmer because the tree will not be using the Co2 for photosynthesis.
Explanation:
Which of the following (A or B) would you look at to help you look at to find the amplitude on this seismogram?
OB
Both A and B
neither Anor B
ОА
Answer:
Answer : Both A and B.Hope this will help you lot.
Which statement describes one characteristic of this molecule?
a.) it is the template for the replication of genetic information
b.) organic catalysts are made of these molecules
c.) it is different in each cell of an organism
d.) cell membranes contain many of these molecules
PLS HELP GIVING BRAINLIST TO ANYONE WHO ANSWERS
Answer:
1
Explanation:
The illustration shows a pedigree with an autosomal recessive mutation.
What is the possibility that the male in the F 2 generation will express the mutation?
70%
25%
100%
50%
Answer:
50%
Explanation:
Sana makatulong
Which of the following are classified as
moderately-restricted?
A. National Historic Sites
B. National Wildlife Refuges
C. National Monuments
D. National Mall
Assume that this is one of Santhi's chromosomes obtained from a sample of her blood. This chromosome is composed of two chromatids joined by a centromere. Which of the following statements is INCORRECT? The cell that contains these sister chromatids must be diploid. The sister chromatids were formed by replicating a single chromatid. The sister chromatids were joined by fertilization, bringing together a maternal and paternal chromatid.
Answer:
The sister chromatids were joined by fertilization, bringing together a maternal and paternal chromatid.
Explanation:
Green plants are able to make their own food from
simple raw materials around them. This process is
called Blank
The
energy
needed for
photosynthesis comes from the B
LC с is a substance that absorbs sunlight.
The light energy is able to
carbon dioxide
and
E into F The
sugars are the
plant's G Oxygen is made as a H Н.
product.
Answer:
E
into G oxygen is made as a H H
CAN SOMEONE PLZ ANSWER THIS
Answer:
b
Explanation:
What is the complementary DNA strand to G C A T C T A A ?
Answer:
C G T A G A T T
Explanation: The complementary strand would be C G T A G A T T because you could think of it like
"A" Apple would go to a "T" Tree
And "C" Car would go with a "G" Garage.
For example if a DNA strand would be C G T T A
The complementary version would be G C A A T
Is the force that pulls you to the outside while rounding a curve
The force that pulls us to the outside while rounding a curve is known as Centrifugal force
which acts away from the centre
Specialized cells are __________ intocells with specific functions
Specialized cells are stem cells that turn into cells with specific functions
Specialized cells are differentiate into cells with specific functions.
What is cell differentiation?Cells are the fundamental cornerstones of all life. Numerous numbers of cells construct the human body.
The process by which dividing cells alter their functional or phenotypical type is known as cell differentiation. All cells, it is assumed, derive from stem cells and acquire their functions as they mature.
In response to antigen exposure, some differentiation occurs. Differentiation alters a cell's size, shape, membrane potential, metabolic activity, and responsiveness to signals significantly.
These changes are primarily the result of highly controlled changes in gene expression and are the subject of epigenetic research.
Mesenchymal stem cells, epithelial stem cells, and muscle satellite cells are the three types of differentiated cells.
Thus, the answer is differentiation.
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How do ocean currents influence people?
A. Oceans currents influence climate
B. Oceans Currents influence plate tectonics
C. Oceans currents influence the local politics of an area
D. Oceans currents influence the length of the days
Answer:
I think it is option A
oceans currents influence climate
hope it helps
Which type of blood cell is the first to arrive at a bacterial infection?
A. Neutrophil
B. Platelet
C. Macrophage
D. B cell
Answer: The most numerous of the granulocytes—making up 50 to 80 percent of all white cells—are neutrophils. They are often one of the first cell types to arrive at a site of infection, where they engulf and destroy the infectious microorganisms through a process called phagocytosis.
Explanation: the answer is A) Neutrophil
Question 3 (1 point)
Which of the choices below would determine if a protein will perform a specific function for the cell?
Answer:
you forgot the picture, bud
Explanation:
Which of the following would be considered the strongest evidence that two species are related to one another?
a. common structures
b. shared taxon
c. similar genes
d. same extinction pattern
At the beginning of the night, the moon is low in the sky. Later in the night, it is high in the sky. Explain why the moon appears to move in the sky.
a. Earth is revolving the sun.
b. Earth is rotating in space.
c. The moon is rotating on its axis.
d. The moon is moving toward Earth.
Answer:
C
Explanation:
I think it is C because the moon revolves around the Earth.
In the process of photosynthesis, plants produce glucose. They use some of this glucose to grow. They store the rest in fruit and seeds in order to
reproduce. What is the use of this stored glucose in the seed?
Answer:
RESPIRATION, MAKING FRUITS, MAKING CELL WALLS, MAKING PROTEINS, STORED IN SEEDS AND STORED AS STARCH
Explanation:
Glucose molecules together form cellulose, which builds or adds strength to cell walls. Glucose molecules also form carbohydrates. When combined with nitrates from the soil, glucose will form amino acids
In order to insure the survival of our planet, people have a responsibility to
A.avoid recycling materials
B.eliminate all plant life on this planet
C.consider the impact of their actions
D.use as much energy as possible
C. Consider the impact of their actions, is the correct answer.
A is not correct because recycling helps protect the environment and helps boost the economy. B is not correct because plants helps supply oxygen for humans and animals. It is also a food source for some animals and humans. C. is not correct because we need to save energy for a healthier and cleaner planet.
Select all the statements that correctly describe the difference between DNA and RNA.
A) RNA nucleotides contains uracil instead of thymine as in DNA
B) DNA consists of two strands of nucleotides while RNA has one
C) RNA consists of phosphate group while DNA has nitrogenous group
D) DNA nucleotide comprises deoxyribose sugar while RNA consists of ribose sugar
E) DNA nucleotides contain and adenine-uracil base pairing
F) RNA is more complex than DNA because it has more types
Answer:
A,B,D,
Explanation:
C,E and F are wrong
Answer:
DNA has thymine as a nucleotide, while RNA has uracil.
Explanation:
The DNA nucleotides are adenine, guanine, cytosine, and thymine; the RNA nucleotides are adenine, guanine, cytosine, and uracil.