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mina [271]
3 years ago
7

Even before modern observations provided evidence that supports the Theory of Plate Tectonics, people developed theories that th

e continents were once joined together. Using only maps, they observed that -
a
most of the larger land masses are in the Northern Hemisphere.
b
continents with the most moderate climates were located near the Equator.
c
the shapes of continents appeared to allow them to fit together.
d
the oceans have decreased in size throughout the history of Earth.
Biology
2 answers:
Goryan [66]3 years ago
5 0

Answer:

C the shapes of continents appeared to allow them to fit together

alexdok [17]3 years ago
5 0

Answer:

C

Explanation:

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What type of human disorders and diseases might be treatable using stem cells?
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The following disorders might be treated by using stem cell therapy:

Spinal injuries can be treated by the stem cell therapy. As the neurons can be replaced by healthy neurons and used to treat Parkinson's disease.

The insulin produced from the somatic cells are used to treat the diabetes.

The cancer can be treated by using stem cell therapy.

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Different genetic diseases can be cured by the use of stem cells.

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Instead of roots non vascular plants have threadlike structures called?​
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Instead of roots, threadlike structures called rhizoids.

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The extracellular matrix (ECM) was regarded decades ago as an uninteresting set of proteins and unusual carbohydrates that were
IrinaK [193]

Answer:

(a) E-cadherin growth suppressor genetic factor are significantly active space of analysis in growth and tumorigenesis. The calcium reliant connections between E-cadherin particles are essential for the creation and conservation of supporter connections in parts of animal tissue cell-cell interaction.

CAMs admire the cadherin glycoproteins ordinarily perform because the adhesive that grips cells along and performance as necessary intermediaries of cell to cell connections. E-cadherins, on the superficial of all animal tissue cells, are joined to the simple protein bodily structure complete connections with catenin’s within the protoplasm

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Collagen consists of three handcuffs. The manacles are looped along to create a multiple helix. the method of scleroprotein synthesis happens principally within the cells of fibroblasts that are specialised cells with the most perform of manufacturing collagen and stroma. scleroprotein mixture happens each intracellularly and extracellularly.

 

c. Laminin could be a substance of integrin’s receptors. it's AN RGD theme that dilemmas to RGD compulsory sphere on receptor. So as to investigate whether or not the somatic cell composition is because of compulsory of laminin to integrin’s, ab initio it's to be verified, that integrin’s are profusely articulated on the somatic cell semipermeable membrane. This may be achieved mistreatment technique examination via antibodies or by template RNA appearance by RT-PCR.

The appearance of those integrin’s may be inhibited mistreatment RNAi by siRNA method. The siRNA can destroy the template RNA for the integrin because it contains a balancing arrangement to the mRNA. The damage of template RNA can source decreased macromolecule appearance. The cells will then be coated on the 3 glazed plates makeshift, laminin. If the cells provide spherical cells, formerly the somatic cell composition are going to be because of integrin-laminin collaboration. The cells may be gathered and testes for somatic cell indicators that designated distinction to neuronal composition. If no diversity indicators are specificed in laminin covered plates with distorted cells as likened to the management cells that rapid integrin’s, then it's laminin integrin communication that's chargeable for the somatic cell composition see, simple protein thread designs can even be deliberate on top of things and distorted cells produce on laminin covered plates by technique.

Another technique which will be utilized is to pelt the philosophy plate with changed laminin macromolecule that absences the RGD themes. The somatic cell cell appearances will then be plated and refined on the management laminin and changed laminin missing RFD themes. If the somatic cell composition isn't ascertained, then it may be over that laminin-integrin connections are concerned in growth of the somatic cell composition.

(d) Glycosaminoglycans (GAGs) are necessary electronic warfare parts, as a result of they're extremely charged polymers that powerfully dilemma aquatic and ions, making state in electronic warfare areas, and since they dilemma and confiscate physiologically necessary proteins.

Proteoglycans facilitate control trails that management vegetative cell fate, and so represent a wonderful tool to control these trails. Although their position, there's a scarcity of knowledge linking glycosaminoglycan construction inside proteoglycans with vegetative cell variation.

7 0
3 years ago
Two skeletal system processes that are constantly taking place include the resorption of existing bone and formation of new bone
kvv77 [185]

Answer:

Explanation: osteoporosis occurs when there is an imbalance between bone formation and  bone resorption.

7 0
3 years ago
When a plant is attacked by a pathogen, it may respond by carrying out a defense that causes cell and tissue death near the infe
lora16 [44]

Answer:

Hypersensitive response

Explanation:

<em>The hypersensitive response is a defense mechanism developed by certain plants in response to the invasion of pathogens. </em>

<em>This mechanism features include the rapid death of cells and tissues surrounding the infection site so as to limit the invasion of the pathogens as pathogens require living cells in order to continue spreading.</em>

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