Which group of fishes evolved first?
A) Ray-finned fishes
B) Lobe-finned fishes
C) Cartilaginous fishes
D) Jawless fishes
D
Biology & Microbiology
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The dark middle layer of the eye that prevents the
scattering of light is the a. fovea. b. retina. c. sclera. d. choroid. e. cornea.
Biology & Microbiology
In sponges, spicules are secreted by amoeboid cells
____________________ Indicate whether the statement is true or false.
Biology & Microbiology
Explain how you would distinguish a monocot from a eudicot by looking at the anatomy of their roots. What will be an ideal response?
Biology & Microbiology
Blood vessels called ___ carry blood back to the heart.
What will be an ideal response?
Biology & Microbiology