Which of the following factors affects global
climate change?
a. shifts in Earth’s orbit
b. changes in the tilt of Earth’s axis
c. changes in solar output
d. human caused increases in greenhouse
gases
e. all of these factors affect global climate
change
E
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Branches of a bronchus are known as ____.
A. larynx B. bronchi C. bronchioles D. trachea E. pharynx
Place the following in order of the movement of urine through the urinary system: (1 ) urethra, (2 ) ureter, (3 ) kidney, (4 ) urinary bladder
A) 3, 4, 1, 2 B) 1, 2, 3, 4 C) 3, 2, 4, 1 D) 1, 3, 2, 4 E) 2, 3, 4, 1
Homologous structures, such as a bat wing and dolphin flipper,
A) are structures that did not develop in response to natural selection. B) are formed from genes on the same pair of chromosomes. C) are the result of pairs of chromosomes that are identical in bats and whales. D) have the same underlying structure due to inheritance from a common ancestor. E) are similar externally but have different basic structures and were probably not derived from a common ancestor.
The term heterotroph refers to an organism that
A. uses CO2 for its carbon source. B. must obtain organic compounds for its carbon needs. C. gets energy by oxidizing inorganic compounds. D. does not need a carbon source. E. gets energy from sunlight.