In 2006, scientists discovered a fossil that had scales and gills, a flat head with eyes on top like a frog, and fin and neck bones that would allow it to prop itself out of the water. The best explanation for this fossil is that it is
A. a modern amphibian.
B. a transitional fossil between fish and amphibians.
C. a ray-finned fish.
D. a transitional fossil between amphibians and reptiles.
Answer: B
You might also like to view...
Which group of eukaryotes LACK alveoli?
A) apicomplexans B) ciliates C) dinoflagellates D) oomycetes
Infants acquire natural passive immunity from maternal antibodies transferred across the placenta or in breast milk
Indicate whether the statement is true or false.
DNA profiling has been used to
A) identify victims of terrorist attacks and natural disasters. B) cure metabolic diseases caused by mutations in single genes. C) treat male infertility. D) predict how children will do in school.
Green and colleagues assessed the degree of past interbreeding between modern Homo sapiens populations and extinct premodern populations by looking at an aspect of genetic diversity known as ________. [three words]
Fill in the blank(s) with correct word