EVERYDAY SCIENCE

SCIENCE

ZOOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the average size of a roundworm?
A
1-5mm
B
3-4mm
C
2-6mm
D
3-7mm
Explanation: 

Detailed explanation-1: -Adults of Ascaris lumbricoides are large roundworms. Females measure 20–35 cm long with straight taisl; males are smaller at 15–31 cm and tend to have curved tails. Adults of both sexes possess three “lips” at the anterior end of the body.

Detailed explanation-2: -Ascaris species are very large (adult females: 20 to 35 cm; adult males: 15 to 30 cm) nematodes (roundworms) that parasitize the human intestine.

Detailed explanation-3: -Roundworms can live inside the small intestine for up to two years. The worms are about as thick as a pencil and can grow to be about 13 inches long. They also reproduce quickly. Female roundworms may lay more than 200, 000 eggs every day; these eggs leave the body through bowel movements.

Detailed explanation-4: -Fertilized eggs are oval to round in shape and are 45–75 m (0.0018–0.0030 in) long and 35–50 m (0.0014–0.0020 in) wide with a thick outer shell. Unfertilized eggs measure 88–94 m (0.0035–0.0037 in) long and 44 m (0.0017 in) wide.

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