Studied by 3 peopleCalciferous glands
________, present in the stomach, neutralize the humic acid present in the humus.
Pheretima
________ exhibits a closed type of blood vascular system, consisting of blood vessels, capillaries, and the heart.
ova
The ________ (eggs) are fertilized by the sperm cells within the cocoon which then slip off the worm and are deposited in or on the soil.
straight tube
The alimentary canal is a(n) ________ that runs between the first to the last segment of the body.
nephridium
A(n) ________ starts out as a funnel that collects excess fluid from the coelomic chamber.
Nephridia
________ regulate the volume and composition of body fluids.
Earthworms
________ are known as ‘friends of farmers because they make burrows in the soil and make it porous which helps in respiration and penetration of the developing plant roots.
Thus the body is divisible into three prominent regions
preclitellar, clitellar and postclitellar segments
Note 
Flashcard (130)