What Is Believed To Be The Most Significant Result Of The Evolution Of The Amniotic Egg?

The amniotic egg is hard-shelled and is called an amniotic egg because the embro develops within a sac called amnion.

Amphibians were first tetrapods to invade the land. The need to return to water for reproduction limited their distribution. Amniotes evolved an egg that broke the tie to freshwater.

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Amniotic egg contains a series of extraembryonic membranes (Amnion, allantois, chorion, yolk sac) that, among their features , takes the aquatic environment with the egg.

Hence a. Tetrapods were no longer tied to the water for reproductionis believed to be the most significant result of the evolution of the amniotic egg.

Answer from: lberman2005p77lfi

Tetrapods are no longer tied to the water for reproduction.

Explanation:

Amnion is the fluid filled sac that surrounds the embryo in eggs of terrestrial vertebrates. Amniotic fluid serves as cushion for embryo and protects it from desiccation. Evolution of the amniotic egg in ancestral amphibian of reptiles is considered to be an extremely important event since it removed the dependence of terrestrial vertebrates on water for reproduction and allowed them to complete their life cycles on land.

Answer from: ErrorNameTaken505

a. Tetrapods are no longer tied to the water for reproduction.

Explanation:

Amniota Egg.

It is an egg that is isolated and protected from the environment during the period of its development by a series of extraembryonic membranes and, often, a more or less impermeable shell; Amniotic eggs of birds and many reptiles are completely autonomous and only require oxygen from the outside.

The appearance of the amniota egg in a group of tetrapods made possible the most complete conquest of terrestrial habitats. This group of tetrapods called amniots is currently represented by reptiles, birds and mammals; Its origin dates back to the Carboniferous.

The Amniota egg, in it, the embryo generates three envelopes, Corion, Alantoides and Amnios, which make up an aqueous medium that allowed it to breathe and feed during its development. They also have a calcareous envelope that prevents desiccation, without preventing the exchange of gases and then allowing their development in a terrestrial environment.

Answer from: ahmadfarriz4088

The right answer is A Tetrapods were no longer tied …

Tetrapods are divided into two groups: Lissamphibians and Amniotes.

Amniotes have the amniotic egg. Basically, membranes protect the embryo in the egg: these membranes prevent water from leaving but allow air exchange. So, Amniotes are animals independent of the aquatic environment for reproduction.

Answer from: TVASALLO31
I think the most critical consequence of the advancement of the amniotic egg it the tetrapods were no longer attached to the water for reproduction.The amniotic egg permits reptiles, flying creatures, and warm-blooded creatures to lay eggs ashore without drying out. The liquid filled depression containing the incipient organism is isolated from the outer condition by an amniotic sac that is impermeable to water.

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