-In the section "Investigating Life: Evolving Backwards," what was hypothesized about the loss of legs in modern-day snakes?
A) Snakes descended from land-dwelling ancestors.
B) Snakes descended only from burrowing lizards on land.
C) Snakes descended only from marine lizards.
D) Snakes do not have forelimbs or hindlimbs.
E) Some extant snakes have forelimbs or hindlimbs.

Question

-In the section "Investigating Life: Evolving Backwards," what was hypothesized about the loss of legs in modern-day snakes?
A) Snakes descended from land-dwelling ancestors. 
B) Snakes descended only from burrowing lizards on land. 
C) Snakes descended only from marine lizards. 
D) Snakes do not have forelimbs or hindlimbs. 
E) Some extant snakes have forelimbs or hindlimbs.

Quizplus · Accepted Answer

Various hypotheses have been advanced over time to identify the ancestors of snakes.

-In the Section "Investigating Life: Evolving Backwards," What Was Hypothesized