BIO 370 - Exam #1 questions well
answered passed
Ancient echinoderm - correct answer ✔✔ Most likely ancestor of the Chordate?
An animal resembling Amphioxus - correct answer ✔✔ Most recent ancestor of the
vertebrates?
Animals that have a fluid-filled sac around the developing embryo - correct answer ✔✔ What
does the term amniote refer to?
Lungfish - correct answer ✔✔ What group of vertebrates gave rise to the first amphibians?
mRNA is transcribed and stored - correct answer ✔✔ What occurs during the previtellogenic
phase of oogenesis?
True - correct answer ✔✔ T/F: Trophoblast will develop into placental structures (mammals)
False - correct answer ✔✔ T/F: Blastula stage resembles that of amphibians (mammals)
Meiotic divisions are much slower in mammals - correct answer ✔✔ How does cleavage in
mammalian embryos differ from non-mammalian?
Yolk sac - correct answer ✔✔ What extra embryonic membrane is vestigial in mammalian
embryos?
answered passed
Ancient echinoderm - correct answer ✔✔ Most likely ancestor of the Chordate?
An animal resembling Amphioxus - correct answer ✔✔ Most recent ancestor of the
vertebrates?
Animals that have a fluid-filled sac around the developing embryo - correct answer ✔✔ What
does the term amniote refer to?
Lungfish - correct answer ✔✔ What group of vertebrates gave rise to the first amphibians?
mRNA is transcribed and stored - correct answer ✔✔ What occurs during the previtellogenic
phase of oogenesis?
True - correct answer ✔✔ T/F: Trophoblast will develop into placental structures (mammals)
False - correct answer ✔✔ T/F: Blastula stage resembles that of amphibians (mammals)
Meiotic divisions are much slower in mammals - correct answer ✔✔ How does cleavage in
mammalian embryos differ from non-mammalian?
Yolk sac - correct answer ✔✔ What extra embryonic membrane is vestigial in mammalian
embryos?
