How much more powerful than an atomic

bomb was the impact of the asteroid that
created the Barringer Crater in Arizona?



a. 10 times
b. 15 times
c. 100 times
d. 150 times
e. 1000 times


D

Biology & Microbiology

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Bacteremia, endocarditis, bacillary angiomatosis, cat-scratch disease, and peliosis hepatis can all be caused by:

a. Afipia felis. b. Bartonella quintana. c. B. clarridgeiae. d. B. henselae.

Biology & Microbiology

Which term(s) refer(s) to bacterial morphology?

A. Bacillus B. Coccus C. Polyhedral D. Coccus AND Bacillus

Biology & Microbiology

Speciation can arise through abrupt events, such as changes in chromosome number, or as a consequence of adaptation to different ecological niches. What is the term for the splitting or diverging of a population into two or more species? Which of the figures above represents this term?





A. Anagenesis; Figure A.
B. Anagenesis; Figure B.
C. Cladogenesis; Figure A.
D. Cladogenesis; Figure B.
E. Cladogenesis; Both Figure A and B can represent this term.

Biology & Microbiology

Which of these animals uses positive pressure breathing?  

A.  reptiles B.  mammals C.  amphibians D.  birds

Biology & Microbiology