A pine tree is called a sporophyte because it
a. develops from a germinated spore.
b. produces spores by meiosis.
c. is haploid.
d. undergoes fertilization.
e. reproduces by both sexual and asexual means.
Answer: b
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a. 1849 b. 1858 c. 1866 d. 1887 e. 1900
In bees, haploid male drones are produced by ____ while new queens and sterile workers are produced by ____
a. parthenogenesis; fertilization b. budding; fertilization c. fragmentation; parthenogenesis d. fertilization; parthenogenesis e. fission; budding
Which animal of the Cambrian period is also one of the first animals to exhibit a sense of vision?
a. Cyclomedusa b. trilobite c. Dickinsonia d. Spriggina
Carbonic anhydrase in red blood cells catalyzes formation of bicarbonate from water and _____
a. oxygen c. oxyhemoglobin b. hemoglobin d. carbon dioxide