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Ket [755]
3 years ago
7

Who created artifacts such as iron

Biology
1 answer:
alexandr1967 [171]3 years ago
6 0

Answer:

C) <em>Hai Artisans</em>

<em />

<em><u>Hope this helps!</u></em>

<em><u>Please mark brainliest!</u></em>

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Nucleotides in RNA are connected to one another in the polynucleotide chain by A. covalent bonds between bases. B. covalent bond
Masteriza [31]

Answer:

C

Explanation:

A ribonucleotide is very similar to a deoxyribonucleotide with the major difference being that they have a H instead of an OH in the 1’ carbon. Each ribonucleotide also has a phosphate molecule in their 5’ carbon like DNA. It is this phosphate that bonds with the 1’ carbon of the next monomer to form a phosphodiester bond through a condensation process – that releases a water molecule.

5 0
3 years ago
A forensic scientist in using a standard biological microscope with 15 objective and 5 eyepiece to examine a hair from a crime s
SIZIF [17.4K]

The given data is Magnification, M = 15

Length of the tube , L = 16 cm

The focal length of the lens can be calculated by:

M = L/F

Substituting the value, we get:

15 = 16/f

f = 16/15

f = 1.067 cm

Using the equation of magnification we get,

M = v/u

Substituting the values we get:

15 = v/u

v = 15 u

With the help of lens formula, calculate the object distance:

1/f = 1/v + 1/u

Substituting the value we get,

1/1.067 = 1/15u + 1/u

0.937 = 1.067/u

u = 1.13 cm or 1.1 cm.

Hence, the object distance is 1.1 cm.


3 0
3 years ago
How to clean out the prostate with enzymes and acids?
slavikrds [6]
Prostatic acid phosphatase was purified from prostatic fluid. Monospecific antisera to the purified acid phosphatase was then produced in rabbits. When antibody was coupled with acid phosphatase, the enzymatic activity was markedly stabilized against pH and temperature degradation. Both acid phosphatase and rabbit anti acid phosphatase were non specifically coupled to Sepharose-4B using cyanogen bromide. Under these circumstances slight stability occurred when antibody was bound to Sepharose, and then acid phosphatase added to the gel antibody complex. When acid phosphatase was complexed to Sepharose, no stabilization occurred.
4 0
3 years ago
Which of the following statements is true?
kogti [31]

The correct answer is option D, that is since genetic drift is random, it does not always favor the better or healthier organisms.  

A mechanism of evolution in which the frequencies of alleles of a population change with generations because of sampling error is known as genetic drift. It takes place in all the populations of non-infinite size, however, its influences are strongest in small populations.  


5 0
3 years ago
Read 2 more answers
Granite has only recently been exposed at a location on Earth’s surface. What will need to happen first in order for granite to
Lostsunrise [7]

Answer:

1 weathering and erosion must move pieces of granite to other locations

Explanation:

A thick layer of humus must form on top of the granite. The granite must be broken into smaller pieces by weathering processes. Erosion by wind and water must move pieces of granite to other locations.

8 0
3 years ago
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