The typhlosole in earthworm is related with
excretion
absorption
respiration
reproduction
B.
absorption
A typhlosole is an internal fold of the intestine or intestine inner wall. Typhlosoles occur in bivalve mollusks, lampreys and some annelids and echinoderms.
It is a highly glandular, vascular longitudinal ridge increasing the area for absorption of digested food.
Mesoglia is seen in between
ectoderm and endoderm
ectoderm and mesoderm
mesoderm and endoderm
just below mesoderm
Water vascular system is present in which of the following phylum?
Porifera
Cnidaria
Ctenophora
Echinodermata
In which of the following phyla, compound eyes are present?
Annelida
Arthropoda
Mollusca
Echinodermata
The parasite, which completes its life cycle in a single host is
Fasciola hepatica
Plasmodium vivax
Taenia solium
Ascaris lumbricoides
Which one of the following is the infective stage of Ascaris lumbricoides?
Unsegmented egg
Egg with first stage larva
Egg with second stage larva
Free third stage larva
