Q. Digestive system of nematodes have two openings and in form of

View solution

Q. Digestive system of sharks and rays is

View solution

Q. Blood of arthropods is colorless due to lack of

View solution

Q. A harmful molluscus which is injurious to gardens and cultivations is termed as

View solution

Q. Daphnia belongs to class

View solution

Q. All animals of Grade bilateria are

View solution

Q. Tail of sting ray can inflict very dangerous wounds by its

View solution

Q. Anterior end of digestive system is mouth and posterior end is

View solution

Q. Between ectoderm and endoderm, there is a jelly like

View solution

Q. Muscles of annelids which are arranged along length of body are called

View solution

Q. Class hirudinea have additional markings on their body which are called

View solution

Q. Nematoda means

View solution

Q. Echinoderms have vast number of species which are above

View solution

Q. Nerve ring is found in pharyngeal region of

View solution

Q. Bones in ear of mammals are

View solution

Q. A very dangerous specie of parasite which holds villi of intestine and sucks blood and body fluid is

View solution

Q. Cavity present between body wall and elementary canal and lined mesoderm is called

View solution

Q. Evidences suggests that birds have been evolved from ancestors of

View solution

Q. Drainage capacity of soil is improved by burrowing activity of

View solution

Q. Sound absorption In buildings use

View solution