TLS Online TPP Program

#Question id: 130


An amino acid with two chiral carbon atoms

#Biochemistry
  1.  is unstable.

  2. can exist in 4 forms all of which are superimposable.

  3. can form three possible stereoisomers.

  4. can form four possible stereoisomers.

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TLS Online TPP Program

#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?

TLS Online TPP Program

#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.

TLS Online TPP Program

#Question id: 39112

#Life Sciences

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.

TLS Online TPP Program

#Question id: 39113

#Zoology

Assertion (A): Snakes are considered highly evolved reptiles despite lacking limbs.

Reason (R): Snakes possess a specialized biting mechanism and venom apparatus for predation.

TLS Online TPP Program

#Question id: 39113

#Life Sciences

Assertion (A): Snakes are considered highly evolved reptiles despite lacking limbs.

Reason (R): Snakes possess a specialized biting mechanism and venom apparatus for predation.

TLS Online TPP Program

#Question id: 39114

#Zoology

Assertion (A): Protochordates are exclusively marine animals.

Reason (R): They lack a vertebral column and are often referred to as "lower chordates.“