What was the name of the supercontinent that
once contained all of Earth’s land masses?
a. Pangea
b. Pandora
c. Gondwana
d. Laurasia
e. Caprica
A
You might also like to view...
Following implantation, the multiplying cells of the human embryo reorganize to form a gastrula which contains the three primary germ layers
A. true B. false
In all of the following characteristics, prokaryotes differ from eukaryotes except in
A. cell size. B. multicellularity. C. chromosomes. D. nucleic acids as the hereditary material. E. organelles.
In fishes, blood leaving the heart goes directly to the
A) swimming muscles. B) kidney. C) gills. D) brain.
Currently, atmospheric CO2 levels are approximately 400 ppm. The annual mean growth rate in CO2 is about 2 ppm/year. Assuming this trend continues, what would you predict the CO2 level to be in 100 years?
A) 100 ppm B) 200 ppm C) 600 ppm D) 1,000 ppm