Which Lophotrochozoan phylum includes members called ribbon worms or proboscis worms, which are found mostly in marine environments?
a. Rotifera
b. Nemertea
c. Platyhelminthes
d. Mollusca
Ans: b. Nemertea
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In a prokaryotic genome, either insertion elements OR transposons are present, but both are never present at the same time
Indicate whether the statement is true or false.
Based on Figure 24.10, which of the following statements are true?
A. Neanderthals are more closely related to the French than to other groups. B. Neanderthals are more closely related to the Chinese than to other groups. C. Neanderthals are more closely related to the Melanesians than to other groups. D. Neanderthals are more closely related to the Nigerians than to other groups. E. Neanderthals are equally related to all non -African groups.
If a eukaryotic cell divided by binary fission,
a. only one of its offspring would get the nucleus. b. only one of its offspring would get a complete cytoplasm. c. only sperm would be produced. d. only eggs would be produced. e. the chromosome number would be halved.
The closest relatives of fungi and animals are
a. amoebozoans. b. chlorophytes. c. alveolates. d. stramenopiles. e. none of these