The largest type of nematocysts in Hydra is
Holotrichous isorhizas
Atrichous isorhizas
Desmonemes
Stenoteles
D.
Stenoteles
Stenoteles or penetrants are the largest type of nematocysts in Hydra. The thread tube is open at the end. When discharged, it release thread tube by which a poisnous fluid, hypotoxin is injected paralysing the prey.
Water vascular system is the characteristic of which group of the following:
“All vertebrates are chordates but all chordates are not vertebrates”. Justify the statement.
How important is the presence of air bladder in Pisces?
What are the modifications that are observed in birds that help them fly?
Could the number of eggs or young ones produced by an oviparous and viviparous mother be equal? Why?
Segmentation in the body is first observed in which of the following
Match the following:
Prepare a list of some animals that are found parasitic on human beings.
In some animal groups, the body is found divided into compartments with at least some organs/ organ repeated. This characteristic feature is named
Given below are types of cells present in some animals. Which of the following cells can differentiate to perform different functions?
Mock Test Series
