Sapwood develops from:a
secondary xylem
b. secondary phloem
c. primary phloem
d. primary xylem
e. cork parenchyma
a
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Choose the true statement about the morphological data in the chart shown below. The "1" in the box means the trait is present and the "0" indicates that the trait is absent.(Note: All of the characteristics across the top of the columns are considered "TRAITS" for purposes of reading the chart.). Traits OrganismJawsLungsAmniotic membraneHairNo tailBipedalLamprey000000Shark100000Salamander110000Lizard111000Tiger111100Gorilla111110Human111111
A. Only the gorilla and humans share all of the derived characteristics. B. All organisms in this chart share all of the derived characteristics. C. The shark is the outgroup since it only has one of the derived characteristics (jaws). D. The lamprey is the only outgroup since it has none of the derived characteristics. E. The salamander and the tiger together are the outgroup because they only share two of the derived characteristics (jaws and lungs).
High levels of antibodies in patients with SBE cause inflammation because
A. they make the bacteria clump together and get trapped in skin and eyes. B. the surface antigens change rapidly and become unrecognizable. C. the antibodies are defective. D. the antibodies degrade quickly.
Dysplasia occurs when an abnormal structural change occurs in a cell
Indicate whether the statement is true or false
The first cloned vertebrate was Dolly, a sheep, in:
a) 1997. b) 1962. c) 2008. d) 1938. e) 1889.