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Art [367]
3 years ago
7

What would happen if spindle fibers weren't present in plant cell mitosis?

Biology
1 answer:
Taya2010 [7]3 years ago
3 0

Mitotic spindles are microtubule-based structures that separate chromosomes during mitosis. So the cell would lack structure.


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What are the two circuits of the cardiovascular system? What does it mean to say that the cardiovascular system is a closed syst
maksim [4K]

Answer:

The two circuits of the cardiovascular system are: Pulmonary Circuit and Systematic Circuit. The pulmonary circuit is shorter than the systemic and is responsible for carrying deoxygenated blood to the lungs from the right atrium, for oxygenation. The systemic circuit is longer and leaves the aortic artery, carrying oxygenated blood throughout the body and nutrients for survival. If less blood were pumped into the systemic circuit, this amount would not be sufficient to compensate for the organism's needs, with the corresponding consequences that this would entail.  

It is said that the cardiovascular system is a closed system because blood travels inside a network of blood vessels without leaving them.

5 0
3 years ago
Consequences of human interaction with the natural environment
pochemuha

Answer:

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

Explanation:

So, What Happens if Pollution Continues to Increase? ... Breathing air pollution hampers the functioning of lungs among healthy people resulting in respiratory inflammation and heart problems. Living in a polluted area and breathing toxic air increases the risk of cancer. Air pollution weakens the immune system

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2 years ago
Which of the following is the definition for speciation?
Leona [35]

ANSWER:

I think it is the first one

Explanation:

Speciation is the process in which new species are created through evolution. I might be wrong though.

the evolutionary process through which new species emerge

5 0
2 years ago
Sugar dissolves readily in water because it is a(n) ____ substance
Strike441 [17]
It is an hydrophilic substance....<span>Substances that have charge or polarity are </span>hydrophilic<span>, and are likely to dissolve because they have either full or partial charge areas to form hydrogen bonds with water molecules.</span>
7 0
3 years ago
Read 2 more answers
Why do vaccines work for some diseases but not others?
otez555 [7]

Answer:

The antibodies produced by a vaccine only fight specific antigens.

Explanation:

Antibodies only bind to specific antigen during an immune reaction. The introduction of foreign substance in the body stimulate the B-cells to produce antibodies that fight against infections. Only specific antibodies are produced following antigen presenting cells that bind to antigens. They capture and display the antigens to the antibodies.

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3 years ago
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