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katovenus [111]
2 years ago
15

When methane (CH4) combines with oxygen (O2), carbon

Biology
1 answer:
FromTheMoon [43]2 years ago
3 0

Answer:

C. CH4 + 202 – CO2 + 2H20

Explanation:

CH4+O2-CO2+H20

The above equation represents combustion of methane to produce carbon-dioxide and water.

One carbon atom is present on the reactant side as well as on the product side. Four hydrogen atoms are present on the reactant side  and two hydrogen atoms on product side. In order to balance this equation, we would multiply water molecule by two. Now there are four atoms of oxygen in the product side but only two on reactant side, so we will multiply oxygen molecule by two on the reactant side. Now the equation is balanced.

The balanced chemical equation is:

CH4+202-CO2+2H2O

This equation obeys the law of conservation of mass as the mass of the reactants is same as that of the products.

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The slow accumulation of genetic changes to an influenza virus over time is referred to as _______.
Ivenika [448]

Answer:

<u>Antigenic drift</u> refers to the slow accumulation of genetic changes to an influenza virus over time.

Explanation:

Antigenic drift is defined as the mechanism by which viruses undergo variation. This mechanism involves the slow accumulation of mutations in the viral genes, that are responsible for coding the antibody binding sites. This leads to the formation of a new strain of virus, which can't be inhibited by the old antibodies. Due to this, the virus can easily spread the disease.

The antigenic drift occurs in the influenza A virus and also the influenza B viruses.

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8 0
3 years ago
Which statement best describes the role of meiosis during reproduction?
andrew11 [14]

Answer:

A

Explanation:

Meiosis is the formation of non identical gametes

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3 years ago
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kenny6666 [7]

Answer:

C. with a combination of traits from each parent.

7 0
3 years ago
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alexdok [17]

Answer:

B. Amplitude: 30cm; wavelength: 110cm

6 0
3 years ago
What component of Earth’s atmosphere exists entirely as a result of photosynthesis?
ryzh [129]
Salutations!

What component of Earth’s atmosphere exists entirely as a result of photosynthesis?

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Hope I helped (:

Have a great day!
3 0
3 years ago
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