Home
Class 11
BIOLOGY
Assertion: The duck-billed platypus and ...

Assertion: The duck-billed platypus and the spiny anteater, both are egg-laying animals yet they are grouped under mammals.
Reason: Both of them have seven cervical vertebrae and 12 pairs of cranial nerves.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ANIMAL KINGDOM

    A2Z|Exercise Section D : Chapter End Test|50 Videos
  • ANIMAL KINGDOM

    A2Z|Exercise Section C : Previous Years' Examination Questions (AIIMS Questions)|19 Videos
  • ANATOMY OF FLOWERING PLANTS

    A2Z|Exercise Section D: Chapter End Test|50 Videos
  • BIOLOGICAL CLASSIFICATION

    A2Z|Exercise Mock Test Assertion - Reasoning Question|5 Videos

Similar Questions

Explore conceptually related problems

Assertion : The duct - billed Platypus and the spiny anteater, both are egg - laying animals yet are grouped under mammals. Reason : Both of them have seven cervical vertbrae and mammary glands without teats.

Ecological Indicators The presence of dragonflies can reveal changes in the water ecosystems more quickly than studying other animals or plants. In fact, from the nymph to the adult stage, the dragonfly has a significant, positive ecological impact. Dragonfly eggs are laid and hatched in or near water, so their lives impact both water and land ecosystems. Once hatched, dragonfly nymphs can breathe underwater which enables them to eat mosquito larvae, other aquatic insects and worms, and even small aquatic vertebrates like tadpoles and small fish and in the air. Adult dragonflies capture and eat adult mosquitoes. Community wide mosquito control programs that spray insecticides to kill adult mosquitoes also kill dragonflies. Assertion: Releasing dragonflies in areas where there is an outbreak of malarial diseases can be an environment friendly method of control. Reason: Dragon flies are dominant species and will not allow mosquitoes to reproduce