12 15 9 15 18 21 3 40 Listen Which Came First The Chicken Or The Egg It Is Impossible To Determine Because Eggs L 1 (39.96 KiB) Viewed 23 times
12 15 9 15 18 21 3 40 Listen Which Came First The Chicken Or The Egg It Is Impossible To Determine Because Eggs L 2 (37.53 KiB) Viewed 23 times
- 12 15 9 15 18 -- 21 3 40 Listen Which came first, the chicken or the egg? It is impossible to determine because eggs leave no fossils. The chicken, because the amniotic egg did not evolve until the first chicken appeared. The egg, because the amniotic egg evolved well before the first birds. The chicken, because, during speciation, the adult stage always precedes the juvenile stage. Question 14 (1 point) Listen Why is the amniotic egg considered a key evolutionary innovation?
12 a 1 15 8 10 Listen Why is the amniotic egg considered a key evolutionary innovation? It enables eggs to float in an aquatic medium. It greatly increases the likelihood of survival of the eggs in a terrestrial environment. It prohibits external fertilization, thereby facilitating the evolutionary innovation of internal fertilization. It extends the time of embryonic development. Question 15 (1 point) 40Listen ▶ 1 ts migrato out of Africa?
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