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BabaBlast [244]
3 years ago
15

Compare and contrast Base and Acid

Biology
1 answer:
AlladinOne [14]3 years ago
6 0
An acid is any chemical compound which when dissolved in water gives a solution with a hydrogen ion activity greater than in pure water.2<span>A </span>base<span> is an aqueous substance that can accept hydrogen ions.</span>
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A biologist is studying the possible role of earthworms on the fertility of farm soils. As part of this research, the number of
dimaraw [331]

Answer:

Taking more samples from different parts of an acre.

Explanation:

Validity and accuracy of the data is crucial for any serious research. In this particular case, the most accurate data would be obtained if earthworms would be counted on the whole acre. Of course, this would consume lot of time, people, money etc. That's why methods for estimation are used. Estimation best works with large number of samples. Since one acre equals over 4000 square meters, taking only five samples from such a big area is simply not enough for obtaining valid data.

One of the possible ways to improve estimation is to take more samples per acre while avoiding taking adjacent samples because it could be possible that number of earthworms in one part of an acre is increased (or decreased) for any reason, which would lead us to wrong conclusion.

8 0
3 years ago
TRUE/FALSE
kotykmax [81]

Answer:

False

Explanation:

A double-helical DNA molecule consists of two DNA strands. A DNA strand has free 5' phosphate at one end and a free hydroxyl group (OH) at its 3' end. A DNA double helix is said to be antiparallel since each end of the double helix has an exposed 5' phosphate on one strand and a free 3' hydroxyl group (OH) on the other. This means that the two DNA strands run in opposite directions. A phosphate group is always esterified to the 5' carbon of the pentose sugar; never at its 3' end.

5 0
3 years ago
When a dna molecule is replicated, the daughter molecules contain one strand of parental dna and one strand of newly synthesized
mezya [45]
It is called <span>semiconservative replication.</span>
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What is the role of dna fingerpringing in criminal investigations?
elena-s [515]
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4 0
2 years ago
A student inherited left handedness from parents who are both right handed. Explain the pattern of inheritance
Tatiana [17]

Answer:

the left handedness was a recessive trait and skipped one or maybe multiple generations

Explanation:

^

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8 0
2 years ago
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