Protostomes are a clade of animals that undergo protostomy during their embryonic development and their blastopore becomes the mouth. The protostomes, together with the Deuterostomes and the Xenacoelomorpha, make up a major group of animals called the Bilateria. See how much you know about Protostomes by taking up the quiz below.
They both have spiral cleavage of the embryo.
The coelom develops in the same way in both.
The mouth forms first in both, before the anus.
They both form a hollow sphere in the embryo that has an indentation called a blastopore.
They both have indeterminate fate of the embryonic cells, so that separated cells all have the capacity to become a complete embryo.
Rate this question:
Anus directly over the head
Torsion of the body so that the visceral mass is over the foot
Mantle may form gills or functional lungs
Carnivores use the radula to drill holes in shells of bivalves
Swimming larvae are found in all forms
Rate this question:
Labial palp.
Radula.
Mantle.
Tentacle.
Crop.
Rate this question:
Earthworm.
Insect.
Nudibranch.
Octopus.
Spider.
Rate this question:
Insects.
Snails.
Clams.
Earthworms.
Scorpions.
Rate this question:
Aortic arches.
Lateral ventricles.
Setae.
Parapodia.
Nephridia.
Rate this question:
Mollusca
Arthropoda
Chordata
Echinodermata
Annelida
Rate this question:
Totally closed like ours, with arteries and veins.
Similar to ours with general closed vessels but no distinct arteries and veins.
An open system that mostly washes "blood" through the body cavities.
Totally absent; each body cell manages on its own to gain food and get rid of wastes.
Rate this question:
Head, cephalothorax, and abdomen.
Cephalothorax, midsection, and abdomen.
Head, thorax, and abdomen.
Head, prothorax, and metathorax.
Head, cephalothorax, and genitalia.
Rate this question:
Centipedes generally have fewer legs per segment.
The millipede is herbivorous, the centipede is carnivorous.
Large centipedes are dangerous to handle but millipedes are safe.
All of the above are correct.
Rate this question:
Quiz Review Timeline (Updated): Mar 22, 2023 +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
Wait!
Here's an interesting quiz for you.