Answer:
a starch
b salivary gland
Answer:
Starch = does not help the process of ingestion, digestion and absorption
salivary gland = as it does not secret substances from the exocrine gland
Explanation:
Eukaryotes have a cell wall.
Prokaryotes do not have a membrane-bound nucleus.
Eukaryotes copy DNA and are able to reproduce.
Prokaryotes cannot live without a host.
Prokaryotes, such as bacteria and archaea, lack a membrane-bound nucleus and other internal membrane-bound organelles, while eukaryotes, including animal, plant, and fungal cells, have a nucleus surrounded by a nuclear membrane and contain multiple internal membrane-bound organelles.
The main difference between Eukaryotes vs Prokaryotes pertains to their cell structure.
Prokaryotes, such as bacteria and archaea, do not have a membrane-bound nucleus where their genetic material is housed.
Instead, their DNA is located within a region known as a nucleoid.
These cells also typically lack other types of membrane-bound organelles.
On the other hand, eukaryotes, including animal, plant, and fungal cells, have a nucleus enclosed by a complex nuclear membrane, and this nucleus contains the cell's DNA.
Eukaryotes also have other internal membrane-bound organelles, giving it additional complexity.
This key structural difference significantly impacts how these cell types operate and interact.
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Answer:
Explanation:
Prokaryotes have are simple celled and do not have a nucleus while eukaryotes are more complexed and have a nucleus.
Answer:
Cilia are motile in the lungs responsible for keeping the airways clear of dirt and mucus by their characteristic beating motion and rhythmic waving allowing a person to breathe easily and without irritation. These are present in both the lungs as well as middle ear.
As in Primary ciliary dyskinesia , there are defects in the action of cilia in the lining of the respiratory tract , middle ear , sinuses , eustachian tube etc the cilia cannot peforms its regular role .Infections can lead to an irreversible scarring and obstruction in the bronchi resulting in :
1) Shortness of breath.
2) Recurring chest colds.
3) Sinusitis.
4) Coughing , gagging , choking,
5)Middle ear infections
Answer: The respiratory wall or mucosa is made up of the epithelium and supporting lamina propria. The epithelium of respiratory tract is tall columnar pseudostratified with CILIA and goblet cells The cilia aids in sweeping away dusts and bacteria that adheres to the mucous on the epithelium. Therefore people with Primary ciliary dyskinesia are prone to Respiratory infections.
Explanation: Primary ciliary dyskinesia also called immotile ciliary syndrome is a rare genetic disease that affects the movement of cilia lining the respiratory tract. The major consequences of this dysfunction is reduced or absent mucus clearance from the lungs which subsequently leads to chronic recurrent respiratory infections
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The cell cycle is an ordered series of events involving cell growth and division that produces two daughter cells. It consists of interphase and the mitotic phase, where DNA replication and division occur. The cell cycle is crucial for cell growth, development, and reproduction.
The cell cycle is an ordered series of events involving cell growth and cell division that produces two new daughter cells. It has two major phases: interphase and the mitotic phase. During interphase, the cell grows and DNA is replicated. During the mitotic phase, the replicated DNA and cytoplasmic contents are separated, and the cell divides. The cell cycle is a crucial process for the growth, development, and reproduction of cells.
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Earth's energy budget:
The earth’s energy budget is nothing but the balance maintained between the energy received from the sun, the energy that is being radiated back into the outer space after being distributed among five components. About 50% of the energy received are being absorbed by the surface of earth that can be lad or oceans. Then 30% will be directly reflected back or returned back to the space by the clouds as the earth’s surface has different gases and particles present in it. And the rest 20% is being absorbed by the atmosphere or the clouds.Energy released from the Sun is given out as ultraviolet energy and shortwave light .
Answer:
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Explanation:
Permineralization. Permineralization is a process of fossilization that occurs when an organism is buried. The empty spaces within an organism (spaces filled with liquid or gas during life) become filled with mineral-rich groundwater. ... Small-scale permineralization can produce very detailed fossils.