Two extant species of coelacanths and six species of lungfish are members of the ___ lineage
a. Petromyzontoidea
b. Chondrichthyes
c. Actinopterygii
d. Myxinoidea
e. Sarcopterygii
ANSWER: e
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Linnaeus lumped all of the worm-like animals into the category Vermes (Vermis is Latin for worm). Is this a valid classification scheme?
A. No, because some worms are protists. B. Yes, because all worms are members of the same phylum. C. Yes, because all worm-like animals are more closely related to each other than they are to other animals. D. No, because the worm-like body plan has appeared many times through evolutionary history and is not a useful trait for classification. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about animal classification? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Identify the anticodon sequences for an mRNA sequence that is 5?-AUG GGC ACU CAU-3?.
A. 3?AUG 5’ – 3’ GGC 5’ – 3’ ACU 5’ – 3’ CAU5? B. 3?UAC 5’ – 3’ CCG 5’ – 3’ UGA 5’ – 3’ GUA5? C. 5?AUG 3’ – 5’ GGC 3’ – 5’ ACU 3’ – 5’ CAU3? D. 5?UAC 3’ – 5’ CCG 3’ – 5’ UGA 3’ – 5’ GUA3? E. 3?TAC 5’ – 3’ CCG 5’ -5’ TGA 3’ – 5’ GTA 3?
What describes marsupial embryos?
A. They are born fully developed. B. They are born highly underdeveloped. C. They hatch from an internal egg. D. They hatch from an externally laid egg. E. They are nourished by the placenta.
autosomes
What will be an ideal response?