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vodomira [7]
3 years ago
7

Exposure to cocaine during pregnancy leads to increased risk of: select one:

Biology
1 answer:
uysha [10]3 years ago
8 0
I believe it's A. Premature Birth (though they all seem pretty believable)
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____ is a layer of fat cells that insulates most axons and speeds up the transmission of nerve impulses.
Virty [35]
The myelin sheath is the layer of fat cells that insulates most axons and speeds up the transmission of nerve impulses.
3 0
3 years ago
Which information is needed to construct a geomagnetic time scale?
AleksAgata [21]

Answer:

the magnetic direction of rocks along the surface of Earth and the age of rocks along the surface of Earth

Explanation:

The earth's magnetic field or geomagnetic field is believed to originate from the movement of molten iron and nickel in the outer core.

During a period in which the earth magnetic field is normal, crystallising magnetic minerals in magma records the orientation of the prevailing geomagnetic field. At other times when the field reverses and the magnetic field orientation changes, magnetic minerals in cooling magma stores this record.

To create a geomagnetic time scale, geologists can assign absolute ages to the records of these paleomagnetic anomalies which are the reversals. The rock is dated using radiometric techniques and each period of reversal is ascribed an absolute geologic age. Therefore, the magnetic direction of rocks along the surface of Earth and the age of rocks along the surface of Earth helps to build the geomagnetic time scale of the earth.

3 0
2 years ago
Human well-being is tied to biodiversity because:
Sloan [31]
B.
Humans are also part of ecosystems and if they cease to exist, human well being will be affected.
5 0
3 years ago
6. Which of the following has the lowest cost of production of recombinant proteins?
mina [271]

Answer:

Bacteria

Explanation:

Bacteria constitutes large group of unicellular organisms that lacks membrane bound organelles and constitute cell wall. Bacteria are used for the production of recombinant proteins.

Bacteria can be selected easily for the recombinant protein formation. The plasmid of bacteria is helpful for the integration of desired genes and the production of protein. The bacteria culture can be maintained easily in the laboratory. The different strains of bacteria with different traits can be used for the production of different recombinant proteins at low cost.

Thus, the correct answer is option (1).

6 0
3 years ago
Place the following steps of the DNA extraction and PCR process in the correct order. Not all labels will be used.
never [62]
DNA isolation is a process of purification of DNA from sample using a combination of physical and chemical method while on the other hand, Polymerase chain reaction (PCR<span>) is a technique used in molecular biology to amplify a single copy or a few copies of a piece of DNA across several orders of magnitude, generating thousands to millions of copies of a particular DNA sequence.</span>
7 0
2 years ago
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