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Biology
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Explain the cardiac cycle

  • basic anatomy of the heart: chambers, valves, structural difference between right and left side of the heart
  • pulmonary vs. systemic circulation
  • blood flow through the h...
UT
Answered by Umamah T. Biology tutor
2512 Views

Use your knowledge of natural selection to suggest how the peacock's tail has evolved.

Mutation Competition Females are attracted to the tail Reproduce with males with an extravagant tail Offspring pass on the characteristic of an extravagant ...

NF
Answered by Nathan F. Biology tutor
7314 Views

Describe the differences between mitosis and meiosis and when would these occur in mammalian cells?

Both mitosis and meiosis use cytokinesis for the division of genetic informaton between cells, however mitosis creates identical copies known as daughter cells after just one round of cell division, where...

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Answered by Aimee D. Biology tutor
2547 Views

What is a virus?

Viruses are some of the smallest known organisms, and can cause serious disease in humans.A virus consists of a fragment of genetic material inside a protective protein coat. For a virus to survive and re...

HC
Answered by Hannah C. Biology tutor
6399 Views

How does anti-biotic resistance occur?

Anti-biotic resistance is a growing problem for humans now, exacerbated by the overuse and over reliance on anti-biotics. Bacteria colonies have genetic variation amongst the individuals which means they ...

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2895 Views

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