The Duck-Billed Platypus Shares Which Trait with Non-Mammalian Animals

question 55

Multiple Choice

The duck-billed platypus shares which trait with non-mammalian animals?

• A) teeth
• B) lack of cloaca
• C) laying eggs
• D) hair
• E) females produce milk

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Definitions:

Calvin Cycle

A series of biochemical reactions taking place in the chloroplasts of plants during photosynthesis where carbon dioxide is converted into glucose.

RuBP Carboxylase

An enzyme that starts the Calvin cycle reactions by catalyzing attachment of the carbon atom from CO2 to RuBP.

G3P

Glyceraldehyde 3-phosphate, a chemical compound that serves as an intermediate in several central metabolic pathways in all organisms.

Photosystem II

A complex of proteins and pigments in chloroplasts that captures light energy for use in photosynthesis, generating oxygen and driving electron transport.