Question

question 1
use the figure above to answer the following question(s).
which of the following can be inferred from the figure?
the ancestors of reptiles had hair.
turtle eggs are laid in the ocean.
the ancestors of crocodiles had feathers.
the ancestors of snakes had legs.
the ancestors of turtles had two openings in their skulls.

Explanation:

1. Analyze each option using the evolutionary - tree:

• Reptiles (turtles, snakes and lizards, crocodiles) branch off before the trait of hair (which is unique to mammals), so their ancestors did not have hair.
• Turtles are on the branch of animals with moisture - retaining eggs for terrestrial living, so their eggs are not laid in the ocean.
• Crocodiles branch off before the trait of feathers (which is unique to birds), so their ancestors did not have feathers.
• Snakes and lizards are on a branch that comes from the group with four legs. This implies that the ancestors of snakes had legs.
• Turtles branch off before the trait of a skull with two openings, so their ancestors did not have two openings in their skulls.

Answer:

The ancestors of snakes had legs.