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Biology
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Explain the nerve cell events that are propagated by each nerve cell to lead to a cough being stimulated by the brain.

Once an irritating particle enters the trachea and stimulates a receptor a series of events take place. The resting membrane potential of a sensory neuron (usually mainta...

AR
Answered by Alicja R. Biology tutor
2478 Views

How might antihypertensive drugs lower the risk of developing atherosclerosis?

Recap: Atherosclerosis is a disease where damage to the endothelium causes LDL (bad) cholesterol deposits to accumulate in the damaged section of endothelial wall. As part of the b...

DR
Answered by Daniel R. Biology tutor
5223 Views

What is the difference between meiosis and mitosis?

Meiosis concerns the division of cells within sexually reproducing organisms. It results in the formation of four daughter cells via meiosis I and meiosis II. These daughter nuclei are described as 'haplo...

KM
Answered by Kestrel M. Biology tutor
2713 Views

Explain the differences in structure between a vein and an artery

Arteries have a narrower lumen with a thicker layer of muscle tissue which contains more elastic. Whereas veins have a wider lumen with a thinner layer of muscle tissue. Veins also contain valves to preve...

LK
Answered by Louis K. Biology tutor
2837 Views

i) Briefly explain the difference between anaerobic and aerobic respiration (2). ii) Which of these reactions produce more energy and briefly describe why?(2)

i) Anaerobic and aerobic respiration are both biochemical reactions (see below): ANAEROBIC RESPIRATIONGlucose = lactic acid + energy releasedAEROBIC RESPIRATIONGlucose + oxygen= carbon dioxid...

MC
Answered by Mani C. Biology tutor
3310 Views

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