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Greeley [361]
3 years ago
9

What prevents food from entering the nasal cavities?

Biology
1 answer:
g100num [7]3 years ago
8 0
Valve created by soft palate keeps food out of nasal airway during swallowing
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What are some properties of carbon? Please help
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Answer:

Properties Of Carbon :

Explanation:

Carbon:

Symbol: C

Electronic Configuration: 2 , 4

Valency : 4 (Tetra-valency)

Occurrence in nature →Earth's crust → 0.02% in the form of minerals like carbonates, coal, petroleum.

In atmosphere -0.03% in carbon dioxide is ( gaseous form)

Properties of carbon:

  1. Carbon forms Covalent is bonding and Covalent compounds wwhich do not conduct electricity.
  2. Carbon has three  allotropes i.e Diamond, Graphite and Fullerenes.
  3. In diamond carbon atoms bonded together in tetrahedral lattice arrangement.
  4. In graphite carbon atoms are bonded together in sheets of hexagonal lattice.
  5. In Fullerenes ccarbon atoms are bonded together in spherical, tubular, or ellipsoidal forms.
  6. Carbon plays a major role in organic compounds.
  7. Carbon is a Tetravalency. (valency :4)
  8. So that  it is easily share the electrons so that  it gives a possibility of large number of compounds. Carbon compounds are also called as organic compounds. Carbon compounds are also called organic compounds.
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In principle, how many reading frames in an RNA molecule can potentially be translated into protein?
Jobisdone [24]
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Bacteria reproduce by a process known as
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Why is nonpoint source pollution difficult to control?
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because it comes from the everyday activities of many different people, such as fertilizing a lawn, using a pesticide, or constructing a road or building.

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