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skelet666 [1.2K]
3 years ago
15

Which factor explains why coal dust is explosive?

Biology
1 answer:
yanalaym [24]3 years ago
5 0
The answer to the question stated above is surface area. 
Coal dusts<span> are fine </span>powdered<span> form of </span>coal, which are formed by crushing, grinding, or pulverizing of coal. They can be created during mining<span>, transportation, or by mechanically handling coal because of its brittle nature.</span>
The surface area of the coal dust explains why it is explosive.
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Which of the following best describes the function of nasal hair? Group of answer choices
Citrus2011 [14]

Answer:

The correct answer is statement 3.

Explanation:

Nose hair is also known as nasal hair are the hairs present within the nose. The prime function of the nasal hair is to prevent the harmful foreign particles like bacteria, fungus, or other harmful substances from getting within the nasal cavity. It also prevents noxious gases present in the surroundings from entering the nasal cavity.  

The nasal hairs function as a filter and trap dust, spores, bacteria, viruses, and spores on its sticky surface, this further inhibits them from going into the lungs that can eventually result in infection.  

5 0
3 years ago
What does it mean if something is pure-breeding for a trait?
olga nikolaevna [1]

Answer:

they want to make sure the animal gets the traits of the parents

Explanation:

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3 years ago
Which best describes the difference between osmosis and diffusion? Osmosis is the movement of particles from a high to a low par
Luba_88 [7]
<span>Diffusion is the movement of particles from a high to low particle concentration, while osmosis is the movement of water from a high to a low water concentration.
</span>
It's actually really simple:
1) Diffusion simply means liquid or gas particles spreading out. They spread out from the area where most of the particles are orginally located. In other words they thus spread out from a HIGH CONCENTRATION area to a LOW CONCENTRATION area. 2) Osmosis is LITERALLY just DIFFUSION OF WATER. HOWEVER, you MUST use the word 'osmosis' when referencing such diffusion of water.
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7 0
3 years ago
Read 2 more answers
If one is constructing a phylogeny of reptiles using DNA sequence data, which taxon (birds, mammals, amphibians or fish) might b
neonofarm [45]

Answer: If one is constructing a phylogeny of reptiles using DNA sequence data of birds, mammals, amphibians or fish, the suitable outgroup to be used are mammals due to the time of divergence from other group of organisms.

Explanation: Phylogeny is used to determine evolutionary relationship between items or organisms. A phylogenetic tree is a graphical illustration of phylogenetic relationship. In phylogeny, an outgroup represent an organism that is more distantly related to other group of organisms.

In a phylogenetic tree, outgroup stands alone. It shows that the time of divergence of that particular organism is far from other group of organisms. Outgroup is used to root a tree and sometimes represent a group that is more ancestral on a tree.

It should be noted that differences in the DNA sequences of the organisms under consideration will determine which organism will serve as the outgroup.

3 0
4 years ago
Choose the statement that describes processes of receptor-mediated endocytosis, exocytosis, and the changes in the membrane orga
Elis [28]

Answer:

a. Endocytosis involves the opsonization of a receptor and its ligand in clathrin-coated vesicles, along with the inward budding of the plasma membrane. In exocytosis, waste material is enveloped in a membrane that fuses with the interior of the plasma membrane via attachment proteins.

Explanation:

Endocytosis: entails the external binding of a ligand to its receptor which is located on the external side of the plasma membrane. The membrane buds inwardly for internalization to occur.

Exocytosis: material that has been processed inside the cell is transported by vesicles which fuse to the internal side of the plasma membrane and ultimately transported to the outside of the cell.

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3 years ago
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