Which of the following statements are correct?

I. Edward Jenner used cowpox virus to confer immunity against smallpox
II. Louis Pasteur developed vaccines against rabies and anthrax
III. Robert Koch discovered the cholera toxin

#Question id: 39109

#Life Sciences

The "Dipleurula concept" is associated with the origin of:

#Question id: 39110

#Zoology

In which of the following animals is the notochord persistent throughout life and extends from the head to the tail?

#Question id: 39110

#Life Sciences

In which of the following animals is the notochord persistent throughout life and extends from the head to the tail?

#Question id: 39111

#Zoology

Consider the following statements regarding Protista and Metazoa:

I. Protists are primarily unicellular eukaryotes.

II. Parazoa includes animals with true tissues and organs.

III. Metazoans exhibit division of labor at the cellular or tissue level.

IV. Euglena is a mixotrophic protist showing both plant and animal features.

Which of the statements are correct?

#Question id: 39111

#Life Sciences

Consider the following statements regarding Protista and Metazoa:

I. Protists are primarily unicellular eukaryotes.

II. Parazoa includes animals with true tissues and organs.

III. Metazoans exhibit division of labor at the cellular or tissue level.

IV. Euglena is a mixotrophic protist showing both plant and animal features.

Which of the statements are correct?

#Question id: 39112

#Zoology

Identify the correct features of Class Amphibia:

I. Presence of a dicondylic skull.

II. Skin is dry and cornified.

III. Respiration occurs via lungs, skin, and buccopharyngeal cavity.

IV. They are homeothermic animals.