Question

based on the tree, which group of organisms most likely has egg shells? choose 1 answer: a reptiles b fish c primates d amphibians

Explanation:

To determine which group has egg shells, we analyze the evolutionary tree and biological knowledge:

• Fish (B) typically lay eggs without hard shells (many are soft - shelled or no shell in water - based reproduction).
• Primates (C) are mammals, most of which give live birth (no egg shells as they don't lay eggs with shells).
• Amphibians (D) lay eggs in water, and their eggs lack a hard, calcified shell (they have a jelly - like coating).
• Reptiles (A) are known for laying amniotic eggs with a hard, calcified egg shell. This is a key characteristic of reptilian reproduction, as the egg shell provides protection and helps prevent desiccation.

Answer:

A. reptiles