Digestive tract with additional chamber crop and gizzard is a feature of

Given below are some general characters of a chordate . (A) skin is dry without glands, except oil gland at the base of the tail. (B) warm-blooded (homeothermic) animal. (C) The heart is completely four-chambered with right systemic arch. (D) The digestive tract has additional chambers , the crop and gizzard . Identify the animal on the basis of these characters.

Given below are some general characters of a chordate . (A) skin is dry without glands, except oil gland at the base of the tail. (B) warm-blooded (homeothermic) animal. (C) The heart is completely four-chambered with right systemic arch. (D) The digestive tract has additional chambers , the crop and gizzard . Identify the animal on the basis of these characters.

Which one of the following is incorrect for Aves? A Heart is four-chambered and animals are oviparous B The presence of air cavities in bones and the presence of feathers on the body С Digestive tract has additional chambers and animals are homeothermal D The forelimbs are not modified into wings

Two chambered heart is a feature of

The digstive tract of birds has additional chambers, which are

Digestive tract in ctenophores is

Digestive tract in ctenophores is

Digestive tract in ctenophores is

Two-chambered heart is a feature of

Which avian feature indicate reptilian ancestry ? (a) Two special chambers crop and gizzard in digestive tract (b) Eggs with calcareous shells (c) Four chambered heart (d) Scales on hind limbs