Amphibians evolved directly from which ancestral organisms?
a. fishes
b. reptiles
c. small mammals
d. soft-bodied animals
e. marine invertebrates
a
You might also like to view...
The building of a large organic molecule from small subunits involves multiple ________.
A. hydrosynthetic reactions B. hydrolysis reactions C. osmotic reactions D. dehydration synthesis reactions
Some photosynthetic bacteria produce gas vacuoles that regulate their buoyancy but contain no lipid.
Answer the following statement true (T) or false (F)
Which characteristic is LEAST accurate about endospores?
a. They can be destroyed with boiling water. b. They are resistant to acids. c. They can withstand irradiation. d. They can remain viable for millions of years. e. They can withstand drying out.
Injuries to cartilage generally heal quickly because of the rich blood supply to this tissue.
a. true b. false