Biology Journal Class 12. We covered all the Biology Journal Class 12 MCQs in this post for free so that you can practice well for the exam.
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Biology Journal Class 12 Objective for Students
Which of the following is not an insect?
(a) Bed bug
(b) Spider
(c) Housefly
(d) Mosquito
Option b – Spider
Larva of a housefly is called:
(a) Pupa
(b) Imago
(c) Maggot
(d) None of these
Option c – Maggot
Which of the following is the third stage in the metamorphosis of a butterfly?
(a) Egg
(b) Pupa
(c) Adult
(d) Larva
Option b – Pupa
In which one of the following kinds of organisms is the phenomenon found where the female kills the male after copulation?
(a) Dragonfly
(b) Honey bee
(c) Spider
(d) Pit Viper
Option c – Spider
Which of the following groups includes only arthropods?
(a) Prawn, Schistosoma, and planaria
(b) Cockroach, scorpion, and prawn
(c) Chiton, Neopilina, and scorpion
(d) Chiton, prawn, and cockroach
Option b – Cockroach, scorpion, and prawn
Choose the respiratory organs that are not present in Phylum Arthropoda.
(a) Tracheal system
(b) Gills
(c) Water vascular system
(d) Book lungs
Option c – Water vascular system
Which one of the following animals is called a living fossil?
(a) King locust
(b) Limulus
(c) Bombyx
(d) Balanoglossus
Option b – Limulus
Mark what is incorrect regarding the Phylum Arthropoda.
(a) Open type of circulatory system
(b) Bilaterally symmetrical coelomate animals
(c) Diploblastic with head, thorax, and abdomen
(d) The presence of Malpighian tubules and antennae
Option c – Diploblastic with head, thorax, and abdomen
Bilateral symmetry, metameric segmentation, true coelom, and open circulatory system are the features of:
(a) Annelida
(b) Arthropoda
(c) Mollusca
(d) Echinodermata
Option b – Arthropoda
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