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Where do the amniotic membranes come from?
The amniotic membranes are formed from the fetal tissues, specifically from the fetus's skin and cells lining the amniotic cavity. These membranes start developing early in pregnancy and play a crucial role in protecting and supporting the developing fetus in the womb.
How does the sperm cell get up to the egg?
It swims through the amniotic fluid to the egg.
Do human being have amniotic egg?
No. An amniotic egg will normally have multiple parts, like a chicken egg. An aminiotic egg also is surrounded by amniotic fluid. A fish egg is a small embryo surrounded by a protective gel like substance that is similar to a shell.
Do turtles have amniotic egg?
Yes, turtles lay amniotic eggs. These eggs have a protective membrane called the amnion that surrounds the developing embryo and helps prevent dehydration.
Why are mammals considered to be amniotes even though most mammals do not produce an amniotic egg?
Mammals are considered amniotes because they share a common ancestor with reptiles and birds, which do produce amniotic eggs. While most mammals do not lay eggs, they still develop within an amniotic sac in the uterus. The presence of extraembryonic membranes, such as the amnion, allantois, and chorion, during embryonic development in mammals is a key characteristic that aligns them with other amniotes.
What type of egg is composed of a protective shell and membranes that surround the developing embryo?
A type of egg is composed of a protective shell and membranes that surround the developing embryo is an egg
Where do the amniotic membranes come from?
The amniotic membranes are formed from the fetal tissues, specifically from the fetus's skin and cells lining the amniotic cavity. These membranes start developing early in pregnancy and play a crucial role in protecting and supporting the developing fetus in the womb.
The feature present in reptiles and absent in amphibians that freed reptiles from dependence on water for reproduction is?
The amniotic egg is the feature present in reptiles and absent in amphibians that freed reptiles from dependence on water for reproduction. The amniotic egg has protective membranes and allows reptile embryos to develop on land, reducing the need for water for reproduction.
What is premature rupture of membranes in prematurity or premature birth?
Premature rupture of membranes occurs when the amniotic sac is torn, causing the amniotic fluid to leak out.
Why does the developing mammalian foetus have so similar structures to the amniotic egg?
The developing mammalian fetus shares similar structures with the amniotic egg due to their common evolutionary ancestry and the need for a protective environment for embryonic development. Both systems utilize membranes—such as the amnion and chorion in mammals and the various membranes in an amniotic egg—to provide cushioning, moisture regulation, and waste management. These adaptations help ensure the survival and proper development of the embryo in terrestrial environments, reflecting evolutionary solutions to similar reproductive challenges.
Does development of the atomic egg made early reptiles less dependent on water?
There is no such thing as an 'Atomic' egg.However, the amniotes are a group of four-footed animals with backbones or spinal columns that have a terrestrially adapted egg. Amniote embryos, whether laid as eggs or carried by the female, are protected and aided by several extensive membranes, including an amniotic sac that surrounds the fetus. The membrains protect the egg form drying out on land.There is such thing as an Amniotic egg tho its in my science book :P
What is an example of an amniotic egg?
Chicken egg
What are the ad vintages of that amniotic egg?
The amniotic egg is a significant evolutionary adaptation that first appeared during the Carboniferous period, around 300 million years ago. It is characterized by its protective membranes, including the amnion, which allows for the development of embryos in a terrestrial environment. This adaptation enabled reptiles, birds, and eventually mammals to reproduce away from water, contributing to their success on land. The amniotic egg represents a key milestone in the evolution of vertebrates.
What is amniotic fluid in a chicken egg?
egg whites
What replaces the membranes and nutrition source of amniotic eggs in organisms that exhibit live birth without amniotic eggs?
allantois
What is an egg that holds fluid that protects the embryo?
The answer is Amniotic egg.
Do lobsters have amniotic eggs?
No. An amniotic egg is a bird or reptile egg, with a shell. Only vertebrates can have amniotic eggs. ^^ By extention, mammals also have amniotic eggs, but they're reduced in placental mammals (live birth). Platypi and echidnas still lay amniotic eggs though.
