Biology, 30.01.2020 04:44 tanichka2314

Describe the parts of an amniotic egg. how did this structure allow the move to land

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The amniotic egg allows reptiles, birds and mammals to lay eggs on land ... The allantois layer allows gases and waste to escape from the inner part of the egg.

Answer from: pgfrkypory2107

The amniotic egg corresponds to an egg that has an amniotic vesicle, a liquid responsible for protecting the embryo against dehydration and rapid changes in temperature.

The first animals to develop this structure were reptiles. The main importance of the emergence of the amniotic egg for the evolution of animals was that it enabled greater independence of the aquatic environment so that the animals could reproduce.

Amniotic Egg Parts:

Eggshell: impact and dehydration protection, source of calcium for the embryo.Bark membrane: protection against dehydration (prevents water loss).Chorion or chorion: protection for the yolk sac and the embryo. Chorionic villi invade the endometrium and allow nutrient transfer from maternal blood to the fetus. In addition, the chorion joins with the allantoid (in birds and reptiles) to form the allantoic with respiratory function (promotes fetal gas exchange with the environment). In reptiles and birds the chorion is located just below the bark (gas exchange) and in mammals it is part of the placenta and is also involved with the removal and accumulation of metabolism residues.Tube: Air reserve for the embryo.Vitellin sac or Calf: food reserve (consisting of lipoproteins, vitamins, cholesterol).Allantoid: deposit of protein metabolism residues (excreta); It is responsible for the gas exchange of the embryo with the environment and mobilizes the calcium from the shell to develop the bones of the embryo.Ammonium: protects against trauma (mechanical shocks) and prevents dryness (dehydration) of the embryo.

Answer from: Quest

No because the eaeht is on a 23.5 degree axis tilt and so when it is winter the northern hemisphere is pointing away from the sun and the soutubern hemisphere is pointing toward the sun

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picture a world where computers are building made-to-order personalized robotic arms and synthetic organs, drones are circulating above mars! due to the rapid growth of technology, the future has never been more unpredictable, and it presents a huge challenge in education: we are teaching students how to work in a future that we have never been unsure of. it is widely predicted that in eight years’ time, there will be more jobs in the fields of science, mathematics, technology and engineering than in any other discipline. and, as the technology continues to develop, it will soon become clear that addressing social problems will involve more innovative thinking, and analytical and technical knowledge than ever before. undeniably, there are no subjects that encourage innovative and creative thinking, deep thought, problem solving and independence more than the stem subjects. while it is widely commented on that there is a need to reimagine the ways stem subjects are taught in schools by embracing a more interactive and innovative approach to appeal to more students, it should come as no surprise that some of the most reputable educational organizations in the world are already implementing changes to embrace stem. harvard, for example, announced in 2014 that they were increasing their computer science faculty by over 50% and has since introduced computer science as a core subject for all freshmen. the urgency of supporting stem subjects at a young age is becoming more relevant than ever, as adopting a keen interest in the curricula needs to happen early. however, beyond the age issue is one of gender.

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Describe the parts of an amniotic egg. how did this structure allow the move to land...

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