After the X chromosome is inactivated, it will

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.

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. Asexual

Answer:

Wind is the movement of air, caused by the uneven heating of the Earth by the sun and the Earth's own rotation. Winds range from light breezes to natural hazards such as hurricanes and tornadoes

Answer:

Chlorophyll's job is to obsorb sunlight into the plant to be able to use the process of photosynthesis! Answer is C

Answer:

Your choices are all correct!

Answer:

Your are right the correct anwsers are

Explanation:

hope this helps you :)

Answer:

D. It produces gametes / sex cells.

Explanation:

Meiosis is a reductions division, so the source of the sex cells will produce the gametes, undergoing meiosis. The gametes will have half the number of chromosomes in a human body (23).

Answer:

DNA is double-stranded, RNA is single-stranded. DNA has the base Thymine, RNA replaces it with Uracil. DNA has deoxyribose sugar, RNA has ribose sugar.

Explanation:

Answer:

it is true. Watersheds can be as small as a footprint or large enough to encompass all the land

Explanation:

its b i think if its right your welcome if its not let me know

The evidence for continent drift theory is that places with hot climates once had glaciers. Therefore, option B is correct.

According to the Theory of Continental Drift, the continents of the Earth move relative to one another and appear to be drifting over the ocean floor together.

Wegener constructed a ring around the south pole using the regions that had been ice-covered. The conclusion of the theory is, Over the past 300 million years, the continents have drifted to their present locations after having formerly been a single, bigger continent.

The fit of the continents, the distribution of prehistoric fossils, rocks, and mountain ranges, as well as the placements of prehistoric climatic zones, were all used as evidence for continental drift. Hence, option B is correct.

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Answer:

I don't know I'm sorry I will tell you another answer asks me to

Topics: is a heading in an outlined argument or exposition.

1. Biology Foundations

A subtopic that is part of a broader or more general topic.

2. Cells - (Week 1-4)

3.Energy and Transport- (week 4-8)

4. Cellular respiration (week 8-17)

5. Classical Genetics (week 18- 24)

6. Molecular Genetics (week 25- 29)

7. Human Body Systems (week 30- 34)

8. Ecology (week 35 - 36)

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Answer:

Cellular respiration.

Answer: adaptation would help a sped iss survive

Explanation:

Answer:

Succession

Explanation:

The biologists were attempting to imitate succession.

Succession refers to a gradual change to the structure and species composition of a community over a period of time.

A newly colonized environment such as a bare rock forms a community is said to be in primary succession. Thereafter, the structure and composition of the community keep changing until a relatively stable community, otherwise known as climax community, is established.

Secondary succession happens when a disturbed community tries to regain its original dynamics in terms of species composition and structure. A climax community is often less diverse than a community that is still in active succession.

Hence, the biologists were attempting to imitate succession by burning/disturning a relatively stable, less diverse climax community of grassland in order to realize a more diverse community that will undergo secondary succession.

Answer:

Succession

Explanation:

Rats, mice, and gerbils all belong to the same family of rodents, yet each species differs in several important ways. Foxes employ their rapid reflexes to catch prey, whereas cats are noted for being covert hunters.

Whether we like it or not, these rodents are called commensal, which means they have a symbiotic relationship with us humans and profit from us and our homes.

Although both are rodents, they differ genetically in that mice have 20 pairs of chromosomes whereas rats have 21 pairs. The size of the faeces is often used to identify the animals. Compared to mice, rats often live slightly longer.

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Answer:

The orange is analogous to the Earth in having a relatively dense centre (mantle/core) and a much less dense skin (crust).

Answer:

A good anology is an oarnge because it has a thin/semi hard "crust" while the inside is much softer and bigger

Answer:

B is the answer beacuse yeah sorry if wrong

Answer:  16 cells i believe

Explanation: guesses

Answer: cell wall and lysosomes

Explanation:

Answer:

Bb= HE

bb-HOC

Ss=HE

SS=HOD

ss=HOC

Tt=HE

tt=HOC

TT=HOD

Explanation:

Answer:

A. has DNA or RNA ,never both

Answer:

C. RNA polymerase binding to a region near the gene, called the promoter

Answer:

photosynthesis.

Explanation:

during photosynthesis, plants use energy from the sun to convert carbon dioxide and water into glucose and oxygen.

Answer:

Properties of Life. All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing.

Explanation:

Answer: Stratum Corneum

Epidermis. The epidermis is the thin outer layer of the skin. It consists of 3 types of cells: Squamous cells. The outermost layer is continuously shed is called the stratum corneum

Explanation:

stratum corneum

The epidermis has no blood supply and depends on diffusion from the dermal cells for its metabolic needs. The dead-cell layer of the stratum corneum provides the protection from water loss that allows vertebrates to dwell on land