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Naya [18.7K]
3 years ago
14

Which of the following statements about mercury is FALSE?

Biology
1 answer:
Brilliant_brown [7]3 years ago
5 0

Answer:

Option (A).

Explanation:

The element mercury can persist in the environment and proves to be harmful for the living organism. The mercury persist in the lower organism and transfer to the higher organism by the process of biological magnification.

The compounds of methyl mercury are not harmful. The methyl mercury compound cannot cross the blood-brain barrier and does not affect the individual.

Thus, the correct answer is option (A).

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A population of insects is sprayed with a new insecticide. Most of the
zepelin [54]

Answer: This shows that over time, some insects can become "pesticide-resistant" meaning that pesticides don't affect them anymore. And this only happens every few generations. Therefore, each generation is being naturally selected and accumulating variations that make them resist the chemicals. This shows that each cockroach's genes are changing to give them variation from the rest of the population.

I hope this helps!

4 0
2 years ago
Archaebacteria look much alike organisms from what other kingdom due to their similar shapes?
Goshia [24]

Step-by- step-Explanation:

  • Archaebacteria are very similar to Bacteria with respect to their cell size,prokaryotic organisation,circular DNA etc.
  • Archaebacteria very similar to Gram-positive bacteria on the basis of cell structure.
  • Both bacteria and Archaebacteria have several similar Metabolic Pathways.
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Thus Archaebacteria are much alike to Eubacteria.

7 0
3 years ago
How long after conception can you get a positive pregnancy test
sasho [114]

Answer: Although many tests indicate you can test as soon as five days before your next period, the most accurate results will be obtained after you have missed your period and the earliest a test can provide an accurate reading is 14 days after conception. Tests differ in sensitivity in detecting HCG in the urine.

Explanation:

5 0
2 years ago
What is deoxyribose?
Anettt [7]
That’s easy it’s just B
5 0
3 years ago
Which best describes plant classification?
mario62 [17]
If the question goes like this: Which best describes plant classification? <span><span>
A.      </span>Nonvascular plants are grouped into seedless and seeded plants. </span> <span><span>
B.      </span> Seedless plants are grouped into gymnosperms and angiosperms.</span> <span><span>
C.      </span>Gymnosperms are grouped into monocots and dicots. </span> <span><span>
D.      </span> Angiosperms are grouped into monocots and dicots.</span>   <span>

The best answer will be letter D. Angiosperms are grouped into monocots and dicots.</span>     Botanists grouped or classified together according to its characteristics.

see attached file for more information about classification of plants.


Download docx
6 0
3 years ago
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