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hammer [34]
3 years ago
14

What word BEST describes the beating of the heart and the circulation of blood?

Biology
1 answer:
Sveta_85 [38]3 years ago
8 0
The heart beating and the circulation of blood is "involuntary"
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Due today i have a C and need to bring my grade to a B and will mark brainliest
Ostrovityanka [42]

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 : )

4 0
3 years ago
Insects often act as pollinators for plants. In turn, plants provide these insects with food. What kind of a relationship exists
sesenic [268]
A very strong relationship. I'll take the easiest example :the bees. They are so important for our planet. Without them, we and all living creatures on earth would be on track to dispariton. Let me explain why. At first, the bees need the nectar from flowers to make honey ( source of food ). As they pollen from flower to flower, they transport pollen on their tiny little legs and in this way, they help the plants to reproduce themselves. If, for some reason, there will be no more bees. Plants and flowers will not thrive, plants will be eaten without having contribued to the productivity of the species and they will go out. No plants, no more veggies or fruits for herbivorous and humans, no more herbivorous no more food for carnivorous, etc. Also, without plants, there will be less oxygen on our planet. Slowly the fauna and flora will die on earth and then it will be our turn. That is why relationships with plants and insects are so important. Plants produce oxygen for all of us and they are a natural and healthy source of food and insects help plants to survive and thus save the species.
3 0
3 years ago
Slurring words together at a low level of volume and pitch is called
telo118 [61]
Mumbling- slurring words together at a very low level of volume and pitch so that they are barely audible.
4 0
2 years ago
The majority of the accessible drinking water on our planet comes from:
Oxana [17]
The majority of the accessible drinking water on our planet comes from glaciers.
6 0
2 years ago
Why do you think a plant or animal cell needs so many organelles?
vazorg [7]

Answer:

So The Cell Is Protected And Well Working

Explanation:

If Either Cell Didnt Have The Cell Wall The Cell Would Be "Broken"

7 0
3 years ago
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