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Bezzdna [24]
3 years ago
11

Which of the following discoveries were the result of Erwin Chargaff's experiments?

Biology
1 answer:
raketka [301]3 years ago
5 0

Answer:

A

Explanation:

The four bases found in DNA are adenine, thymine, cytosine and guanine.

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Which of the following best describes how the RNA sequence specifies the production of an amino acid chain?
masha68 [24]

Answer:

The answer is B Each group of three RNA bases codes for an enzyme that connects amino acids.

5 0
2 years ago
The number of ducks in a pond is equal to the square root of the number of fish, and the number of turtles is equal to the cube
brilliants [131]

Answer:

There are 64 fish, 8 ducks and 4 turtles.

Explanation:

From the question, there can be from 2 to 99 fish in the pond. However, there cannot be fractions in the number of fish, ducks or turtles. Hence, the number of fish must have both of a perfect square and perfect cube. The perfect squares from 2 to 99 are 4, 9, 16, 25, 36, 49, 64 and 81. The perfect cubes from 2 to 99 are 8, 27 and 64. Since only 64 fits both criteria, the number of fish is 64. The number of ducks is the square root of number of fish, which is the square root of 64. The square root of 64 can be either positive 8 or negative 8. However, there cannot be negative numbers, so there are 8 ducks in total. The number of turtles is the cube root of the number of fish, which is the cube root of 64 and it is 4.

7 0
2 years ago
Which two organs of a plant interact to cause seedlings to grow upward
Pie

There's tropism and stimulus, for starters. Gravity, light, and touch can all be used as stimuli. So it is debatable... If the plant is reaching upwards towards a window that is above it... It would then be light, and the plant's response would be to reach upward.

Hope this helps and if it does, don't be afraid to give my answer a "Thanks" and maybe a Brainliest?  

7 0
2 years ago
Which systems work together to deliver oxygen to the cells of the body?
Rzqust [24]
Respiratory system and the cardiovascular system
3 0
3 years ago
Read 2 more answers
What is the resolving power of compound microscope ?<br> please let me know the answers ?
alisha [4.7K]
Resolving power<span> is the ability of an imaging device to separate (i.e., to see as distinct) points of an object that are located at a small angular distance or it is the </span>power<span> of an optical instrument to separate far away objects, that are close together, into individual images.</span>
3 0
3 years ago
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