A friend of yours visited a natural history museum that had a replica of the Archaeopteryx. She told you the characteristics of Archaeopteryx that she either noticed or read at the display. Which one did she misread?
A. Archaeopteryx lacked teeth, as do modern birds.
B. Archaeopteryx had feathers, as do modern birds.
C. Archaeopteryx had solid bones, unlike the hollow bones of modern birds.
D. Archaeopteryx had a long tail, unlike modern birds.
E. Archaeopteryx had wings as do modern birds.
Answer: A
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Answer the following statements true (T) or false (F)
1. The modification of a limb that was used for walking in a preexisting ancestor to one that is used as a wing for a species today is called proteomics. 2. A bacterial infection such as pneumonia is most likely caused by organisms derived from the kingdom fungi. 3. All genetic mutations are harmful to an organism. 4. Vertical evolution, whereby living organisms evolve from a common ancestor ("tree of life"), is the only mechanism of evolution on Earth.
Replication of a bacterial chromosome begins at a specific region called the ____
a. ter b. replication fork c. beg d. ori e. rep
What type of vascular tissue conducts water and dissolved minerals throughout the plant?
a. xylem b. phloem c. sclereids d. companion cells e. sieve tubes
Which enzyme is matched correctly with the substance it digests?
a. pancreatic amylase: fats b. pepsin: proteins c. salivary amylase: fats d. trypsin: fats