Which of the following respiratory organs are present in Arachinids (arthropods)?
a) lungs
b) gills
c) book lungs
d) nephredia
In insects, excretion takes place through
a) coxal glands
b) malpighian tubules
c) nephredia
d) kidneys
In crustacean arthropods, excretion takes place through………
a) coxal glands
b) malpighian tubules
c) nephredia
d) kidneys
Which of the following are true about the reproduction of arthropods?
a) internal fertilization, separate sexes, generally sexual dimorphism absent
b) internal fertilization, separate sexes, generally sexual dimorphism present
c) external fertilization, hermaphrodite, generally sexual dimorphism absent
d) external fertilization, hermaphrodite, generally sexual dimorphism present
Explanation: dimorphism means male and female can be differentiated from each other on the basis of morphology
Which of the following is/are the sense organ/s in arthropods?
a) eyes
b) antennae
c) chitin
d) both a and b
All the changes occurring from the fertilization of an egg to the formation an adult are collectively called………
a) sexual dimorphism
b) ecdysis
c) metamorphosis
d) external fertilization
