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Troyanec [42]
3 years ago
12

Genetic engineering occurs when scientists

Biology
1 answer:
hodyreva [135]3 years ago
3 0
The answer is B..........
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You dilute an unknown sample of bacteria to 1 x 10-6 and plate out 10 onto a Petri dish. The next day you count 64 colonies. The
Sveta_85 [38]

Answer:

b

Explanation:

The correct answer would be 6.4 x 10^6 cells/ul.

For 1 x 10-6 dilution, the plating factor is 10^6. To find the number of bacteria in the original sample, the plating factor is multiplied by the colony count per ul.

<em>Number of viable bacteria = plating factor x colony count/ul</em>

Since 10 ul gives 64 colonies.  1 ul will give:

         64/10 = 6.4 colonies.

Therefore, the viable bacteria in the original sample = 6.4 x 10^6 cells/ul

The correct option is b.

3 0
2 years ago
Root (b) A sugarcane is monocotyledon; therefore it has _______________________ root​
vichka [17]

Answer:

fibrous root because they form a wide network of thin roots that originate from the stem and stay close to the surface of the soil.

6 0
3 years ago
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One of the following is not a function of proteins:
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D... i took science last year
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What change is likely to occur in a population of beetles that suddenly faces predation from an invasive species of frogs?
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The population density of beetles will decrease.<span>
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Humans developed this because it helped them stay alive by restricting the amount of information processed by the brain and scan
Juliette [100K]

Answer:

Binocular vision

Explanation:

Vision can be explained as an ability to see directly some things that can be a threat or of benefits . It can also be explained as the ability to sense or perceive threat or danger, or something good.

In this case, binoculars vision is a situation of sensing threats or dangers from a very distant place through the help of the brain. Most times, the brain will be able to sense dangers from the interpretation it gathered from what it saw earlier, before the person is involved in the act.

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