Which of the Following Groups Had Made Their Appearance During

question 4

Multiple Choice

Which of the following groups had made their appearance during the Ordovician period?

• A)jawless and jawed fish
• B)jawed fish and amphibians
• C)amphibians and reptiles
• D)reptiles and mammals
• E)All of these groups had appeared by the Ordovician period.

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Definitions:

Despair

A profound sense of hopelessness and dejection, often occurring in the final stage of Erik Erikson's psychological development theory.

Reproductive Glands

Organs in the body responsible for producing gametes (sperm or eggs) and hormones involved in reproduction.

Pituitary Gland

A pea-sized gland located at the base of the brain, known as the "master gland," it regulates vital body functions and general wellbeing through the secretion of hormones.

Puberty

The developmental stage during which a child's body matures into an adult body capable of sexual reproduction.