OnlineCBT Logo OnlineCBT

Biology · ANIMAL KINGDOM

हिन्दी

Which combination of skeletal, integumentary, and digestive features is characteristic of Class Aves?

  1. Pneumatic long bones, skin dry without glands except oil gland at tail base, crop & gizzard present
  2. Solid cartilaginous bones, moist glandular skin throughout, absence of crop and gizzard
  3. Pneumatic bones, epidermis with epidermal scales covering the whole body, 3-chambered heart
  4. Bony non-pneumatic skeleton, oil glands all over body skin, cold-blooded poikilothermic physiology

Correct answer · Option 1

Pneumatic long bones, skin dry without glands except oil gland at tail base, crop & gizzard present

Explanation

Birds (Aves) have fully ossified endoskeleton with hollow, pneumatic long bones. Skin is dry without glands except the oil gland at the base of the tail. The digestive tract has additional chambers: crop and gizzard.
पता संपर्क करें

+91 7877547686

ई-मेल

onlinecbtportal@gmail.com

हेल्पलाइन नंबर

+91 7877547686


डाउनलोड करने के लिए क्लिक करें
Get it on Google Play

ऐप डाउनलोड करने
के लिए Google Play पर
उपलब्ध है

WhatsApp Chat