Linnaeus lumped all of the worm-like animals into the category Vermes (Vermis is Latin for worm). Is this a valid classification scheme?
A. Yes, because all worm-like animals are more closely related to each other than they are to other animals.
B. No, because some worms are protists.
C. No, because the worm-like body plan has appeared many times through evolutionary history and is not a useful trait for classification.
D. Yes, because all worms are members of the same phylum.
Answer: C
You might also like to view...
What is a population's carrying capacity?
A. Its density-independent growth B. Its maximum population size to remain stable C. Its exponential growth over time D. Its minimum population size to avoid extinction
Transcription
a. involves both strands of DNA as templates. b. uses the enzyme DNA polymerase. c. results in a double-stranded end product. d. produces three different types of RNA molecules. e. is true of all of these
Which of the following is a floral reproductive organ that produces the female gametophyte; it consists of an ovary, stigma, and usually a style?
A. Stamen B. Anther C. Calyx D. Corolla E. Carpel
Which of the following statements about actin is false?
(a) ATP hydrolysis decreases actin filament stability. (b) Actin at the cell cortex helps govern the shape of the plasma membrane. (c) Actin filaments are nucleated at the side of existing actin filaments in lamellipodia. (d) The dynamic instability of actin filaments is important for cell movement.