The best light to grow the alga in is ____, according to the figure
a. blue-violet
b. blue-green
c. green-yellow
d. yellow-orange
e. orange-red
ANSWER: a
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Individuals from different subspecies usually interbreed where their geographic distributions meet
a. True b. False
Migratory birds in the Northern Hemisphere most likely head to tropical overwintering grounds because ____
a. they are looking for appropriate sites for egg-laying b. of seasonal changes in the abundance of predators c. they are looking for appropriate breeding sites d. of seasonal changes in food supplies e. they are ectotherms and cannot withstand cold temperatures
Down syndrome involves trisomy of chromosome number
a. 3. b. 5. c. 15. d. 19. e. 21.
Cytoplasmic division in animal cell involves ________________ and in plant cell involves.
A) prokaryotic fission and cleavage furrow B) cleavage furrow and cell plate C) cell plate and cleavage furrow D) karyokinesis and prokaryotic fission