Podcast
Questions and Answers
Why do amniotes enclose their embryos in a fluid-filled sac?
Why do amniotes enclose their embryos in a fluid-filled sac?
- To ensure that embryos are exposed to the external environment.
- To enhance respiratory exchange between the mother and the embryo.
- To help embryos develop in an aquatic environment.
- To prevent embryos and gametes from drying out on dry land. (correct)
Which embryonic membrane is responsible for respiratory exchange?
Which embryonic membrane is responsible for respiratory exchange?
- Allantois
- Endoderm
- Amnion
- Chorion (correct)
What is the purpose of the allantois in pig fetuses?
What is the purpose of the allantois in pig fetuses?
- Develops into the backbone
- Forms the urinary bladder (correct)
- Becomes the bird's beak
- Encloses the embryo in a fluid-filled sac
How did early aquatic vertebrates differ from amniotes in terms of embryo development?
How did early aquatic vertebrates differ from amniotes in terms of embryo development?
Which embryos are not free of living in an aquatic environment?
Which embryos are not free of living in an aquatic environment?
What does the chorion enclose in amniotes?
What does the chorion enclose in amniotes?
Which structure becomes a urinary bladder in pig fetuses?
Which structure becomes a urinary bladder in pig fetuses?
When did Pangea form according to the text?
When did Pangea form according to the text?
Which era begins when Pangea is breaking apart?
Which era begins when Pangea is breaking apart?
What is the most obvious effect of continental drift mentioned in the text?
What is the most obvious effect of continental drift mentioned in the text?
What is the primary reason why amniotes enclose their embryos in a fluid-filled sac?
What is the primary reason why amniotes enclose their embryos in a fluid-filled sac?
Which membranous structure derived from the embryo itself is responsible for becoming a urinary bladder in pig fetuses?
Which membranous structure derived from the embryo itself is responsible for becoming a urinary bladder in pig fetuses?
What distinguishes amniotes from non-amniotes in terms of embryo development?
What distinguishes amniotes from non-amniotes in terms of embryo development?
Which feature enabled early aquatic vertebrates to successfully transition to dry land?
Which feature enabled early aquatic vertebrates to successfully transition to dry land?
What distinguishes amniotes from nonamniotes in terms of embryo development?
What distinguishes amniotes from nonamniotes in terms of embryo development?
Which statement accurately describes the chorion in amniotes?
Which statement accurately describes the chorion in amniotes?
What is a significant function of the yolk-sac in amniotes?
What is a significant function of the yolk-sac in amniotes?
How does the continental drift impact the climates of land masses?
How does the continental drift impact the climates of land masses?
What is the role of the allantois in pig fetuses?
What is the role of the allantois in pig fetuses?
Which statement accurately describes the relationship between Pangea and tropical climates during the Late Paleozoic Era?
Which statement accurately describes the relationship between Pangea and tropical climates during the Late Paleozoic Era?
