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Annette [7]
3 years ago
10

Item 4

Biology
1 answer:
vovangra [49]3 years ago
4 0

Answer:

The answer is C It will not go in water when scared

Explanation:

It makes sense and I also took the quiz :)

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Steven puts the two stones in a rock tumbler. The tumbler spins so the rocks bump against each other. When the rocks are removed
Mandarinka [93]
F. Stone 1 is softer and experienced a greater physical reaction.

Physical reaction is when an object's appearance changes, not the identity (which would be chemical reaction). Because stone 1 is softer, it would be easier to change its physical property. Since stone 2 is harder, it's more durable and therefore harder to change. 
8 0
3 years ago
Why aren't lipids considered polymers?
Art [367]
Because they are not made up of monomers.
 
5 0
3 years ago
Read 2 more answers
Why choose that gene for PCR in the bacterial identification lab?
Reika [66]

Answer:

Background

During the course of a bacterial infection, the rapid identification of the causative agent(s) is necessary for the determination of effective treatment options. We have developed a method based on a modified broad-range PCR and an oligonucleotide microarray for the simultaneous detection and identification of 12 bacterial pathogens at the species level. The broad-range PCR primer mixture was designed using conserved regions of the bacterial topoisomerase genes gyrB and parE. The primer design allowed the use of a novel DNA amplification method, which produced labeled, single-stranded DNA suitable for microarray hybridization. The probes on the microarray were designed from the alignments of species- or genus-specific variable regions of the gyrB and parE genes flanked by the primers. We included mecA-specific primers and probes in the same assay to indicate the presence of methicillin resistance in the bacterial species. The feasibility of this assay in routine diagnostic testing was evaluated using 146 blood culture positive and 40 blood culture negative samples.

Explanation:

Results

Comparison of our results with those of a conventional culture-based method revealed a sensitivity of 96% (initial sensitivity of 82%) and specificity of 98%. Furthermore, only one cross-reaction was observed upon investigating 102 culture isolates from 70 untargeted bacteria. The total assay time was only three hours, including the time required for the DNA extraction, PCR and microarray steps in sequence.

3 0
3 years ago
The sun’s energy is absorbed by plants and converted into glucose during __________. Animals eat the plants and convert the gluc
Dimas [21]
Your answer is c. hope this helps (;
5 0
3 years ago
3. What happens to the amount of Ammonium Chloride (NH4)Cl that can dissolve as the temperature decreases?
Nesterboy [21]

as in any liquid, as heat is added, solutions become more capable of holding more dissolved material . (not sure if this is what you're asking as it seems to be missing information)

3 0
3 years ago
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