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Marina CMI [18]
3 years ago
10

WHO and WHEN proposed the Model of the Atom we believe in today?

Biology
1 answer:
pychu [463]3 years ago
4 0

Answer:

Atoms are so small that it is difficult to believe that all matter is made from atoms—but it is. The concept that atoms play a fundamental role in chemistry is formalized by the modern atomic theory, first stated by John Dalton, an English scientist, in 1808.

Explanation:

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Two objects traveling at the same speed have different velocities if they
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The answer would be D, as even though both velocity and speed may share similar resultants in this scenario, speed is a scalar, while velocity is a vector. Thus, velocity can have direction and move negatively (the opposite direction from which it started) while speed is a measurement of quantity.
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How do viruses reproduce?
sweet-ann [11.9K]

Viruses can only reproduce by infecting living cells

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When a gas is dissolved in a liquid, the gas dissolves faster if the liquid is?
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The gas dissolves faster if the liquids temperature is increased.
5 0
3 years ago
An organism's genome is analyzed and found to contain 18% guanine. What percentage of that organism's DNA is adenine?
Oxana [17]

Answer:

32%

Explanation:

According to Chargaff in his complementary base pairing rule, he stated that the proportion of purine and pyrimidine bases is equal to 100%

That is, A + T + G + C = 100%

Where A=T and G=C i.e the proportion of each base pair is equal.

Hence, if the Guanine content is 18%, it means the Cytosine content of that DNA molecule must also be 18%. Therefore:

18 + 18 + A + T = 100

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A + T = 64

If the sum proportion of Adenine and Thymine is 64% and each must contain equal proportions, A or T = 64/2 = 32

Hence, Adenine contains 32%, likewise Thymine.

6 0
3 years ago
The sympathetic chain ganglia are a series of clusters of neuron cell bodies linked by bridges of ________
BabaBlast [244]

Answer:

b. axons  

Explanation:

The Peripheral Nervous System consists of nerves and ganglia. Nerves are nothing more than bundles of parallelly arranged nerve fibers surrounded by connective tissue. Each of these fibers is formed by an axon and the sheaths surrounding it. The ganglia, in turn, are accumulations of neurons, which usually form spherical structures, are located outside the central nervous system and are also linked by axons bridges.

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3 years ago
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