Multiple choice

Of the following sanguivorous (Blood sucking) is

  1. ascaris

  2. leech

  3. earthworm

  4. nereis
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Leeches are 'worms' with suckers on each end. Leeches can range in size from one centimeter to over 25 centimeters long. They are brown or black in colour. Some feed on decaying plant material. Others are parasites, feeding on blood and tissue of other animals. Blood-sucking leeches suck your blood in two ways: they use a proboscis to puncture your skin, or they use their three mouths and millions of little teeth. 

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