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Lyrx [107]
3 years ago
13

A mangrove community has the following food chain:

Biology
2 answers:
Bingel [31]3 years ago
5 0
The population which would be most likely to increase would be the mangrove tree crab for they won’t be hunted no longer by the roseate spoonbills and therefore their numbers will increase
Taya2010 [7]3 years ago
4 0

Answer:

D. Mangrove tree crab. There would be a drop in the predators that feed on them. Crocodile populations would drop to food shortage, and mangroves might also suffer from the high crab population, so only D is correct.

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The same, unknown bacteria is isolated from 20 sick individuals. Their samples were grown in culture and then placed in 10 healt
AleksAgata [21]
<h2>Koch's Postulates.</h2>

Explanation:

The next step should be isolate the microorganism from the mice and check if it is identical to the original microbe.

According to Koch's postulates, a microbe can be considered as a causative agent of a disease only after all the following are established:

  • The microorganism should be present in all the organism suffering from the disease.
  • The isolated microorganism should be grown in pure culture.
  • The organism grown in the culture should be reintroduced in the susceptible but healthy host.
  • Finally the microorganism must be re-isolated from the experimental host an cultured to see whether it is identical to the original specific microorganism.

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3 years ago
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Kepler discovered that
Setler79 [48]

Answer:

all of the above

Explanation:

gravity makes a planet have a combination go straight yet go around the sun at the same time creating an ellipse

sciencefocus

5 0
3 years ago
What ecological problem does mariculture attempt to address? A.population B. Overfishing C. Ocean acidification D. Unemployment
uranmaximum [27]

Answer:

Option C.

Ocean acidification is the main ecological problem due to mariculture.

Explanation:

  • Mariculture also known as the aquaculture that stands for the fish farming occupation.
  • The main ecological problem that mariclture addresses is the environmental degradation especially the water pollution.
  • Many studies suggests that the tradition of mariculture has been increasing the acidificaton in ocean water that is directly affecting the marine organisms and plants.
  • A build up of organic material beneath fish farms impacts the flora and fauna of an area.
  • That makes drastic changes on sediment chemistry.
5 0
3 years ago
You've discovered a gain-of-function mutant E. coli strain that makes red colonies on plates containing normal minimal medium; w
Komok [63]

Answer:

The correct answers are options

B. "Sequencing reagents, such as dNTPs, ddNTPs, and DNA polymerase".

C. "A computer to blast the base pair sequence of the bacterial genomic insert against the genome sequence of your E. coli strain".

F. "An E. coli genomic library made from the mutant strain".

I. "A sequencing primer that hybridizes adjacent to the insertion site of the bacterial genomic fragment in the library plasmids, and pointing in the 5'-to-3' direction towards the bacterial genomic DNA insert".

Explanation:

Plasmid library transformation approaches are very useful to characterize novel mutant bacterium strains. In order to perform a characterization study of this kind, several reagents and tools are needed, including:

- "Sequencing reagents, such as dNTPs, ddNTPs, and DNA polymerase". One important part of knowing what makes novel mutant bacterium different is to sequencing its DNA.

- "A computer to blast the base pair sequence of the bacterial genomic insert against the genome sequence of your E. coli strain". BLAST is a useful computer tool that compares and aligns DNA sequences, this allows to detect what are the nucleotides that are unique in the novel mutant bacterium.

- "An E. coli genomic library made from the mutant strain". Once DNA has been sequenced, an genomic library must be constructed to ensure that this novel mutant is preserved.

- "A sequencing primer that hybridizes adjacent to the insertion site of the bacterial genomic fragment in the library plasmids, and pointing in the 5'-to-3' direction towards the bacterial genomic DNA insert". Sequencing primers are needed when new genomic libraries are constructed. This short DNA sequences allow DNA polymerase to synthesize the DNA an replicate the genome of interest.

6 0
3 years ago
Describe the parts of an amniotic egg. how did this structure allow the move to land
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The amniotic egg allows<span> reptiles, birds and mammals to lay eggs on </span>land<span> ... The allantois layer </span>allows <span>gases and waste to escape from the inner </span>part<span> of the egg.</span>
7 0
3 years ago
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