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puteri [66]
3 years ago
7

Due today i have a C and need to bring my grade to a B and will mark brainliest

Biology
1 answer:
Ostrovityanka [42]3 years ago
4 0

Answer:

-What types of toxins were found in the waters of the Lower Passaic Superfund site?

DDT and agent orange were found in the waters of the Lower Passaic Superfund site.

-How were some fish able to survive PCB levels thousands of times higher than sensitive fish can withstand?

in some tolerant fish, the trigger for the changes that can be caused by PCB levels are can be turned off which allows some fish to survive levels of PCB thousands of times higher than the levels affecting sensitive fish.

-What is the advantage of a large population for rapid evolution?

The advantage of rapid evolution is that the animals can survive and not get killed off.

-Do you think all species would be able to evolve adaptations to help them survive pollutants? Why or why not?

I don't think that all fish can get speedy evolutions like the killfish did because researchers think that they got a rare mutation which helped them survive. However as researchers say, in smaller populations with less diversity the chances that a rare mutation might happen is small.

-What will likely happen to these toxin-adapted fish if the waters are eventually cleaned up?

Once the water becomes clean, a tolerant fish with the mutation won't do as well as a sensitive fish would do.

Explanation:

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day! Thank you : )

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Korvikt [17]

Answer:

The correct answer is option c.

Explanation:

Entropy is illustrated as a thermodynamic quantity that demonstrates the thermal energy that does not possess the tendency to get transformed into mechanical work.  

At the time of perspiration, the entropy of the body diminishes because of the evaporation of the water that discharges energy from the body and permits the cooling effect to take place. On the other hand, the entropy of water upsurges as the molecules of liquid converts into vapor form, which captivates larger space in the environment.  

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3 years ago
Why does dna replication occur before mitosis
shepuryov [24]
The DNA has to replicate before mitosis to keep the number of chromosomes consistent. Hope this helps.
5 0
3 years ago
Which statement best explains why the adaptive radiation of mammals was possible?​
Aloiza [94]

I think option a is the correct answer

8 0
3 years ago
Which activities of the body are controlled by the autonomic nervous system?
bearhunter [10]

Explanation:

The autonomic nervous system controls internal body processes such as the following:

Blood pressure

Heart and breathing rates

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The balance of water and electrolytes (such as sodium and calcium)

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Urination

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6 0
3 years ago
What are linked genes?
kumpel [21]

Answer:

Genes lying close to each other on chromosome

Explanation:

When genes lie close to each other on chromosome,  they are inherited together as an intact unit in meiosis cell division and such genes are termed as linked genes.During meiosis the genetic material (allele/genes) is exchanged between the homologous parent chromosome which causes  chromosome recombination and thus the formation of linkages These genes have high chances of recombination as they lie close to each other.

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