The first jawed fish were the:a
placoderms.
b. acanthodians.
c. ostracoderms.
d. chrondrichthyes.
e. agnatha.
B
Environmental & Atmospheric Sciences
You might also like to view...
The sea cave in this photograph formed by
A) erosion of a promontory by waves.
B) erosion by blowing beach sand.
C) removal of rocks by giant lobsters.
D) a rapid drop in sea level.
Environmental & Atmospheric Sciences
What is the difference between an endotherm and an ectotherm?
What will be an ideal response?
Environmental & Atmospheric Sciences
Speed divergence is
A) most common with anticyclones. B) straight-line acceleration of upper-level winds. C) the spreading out of upper-level winds. D) primarily a fair-weather phenomenon. E) primarily a surface-level phenomenon.
Environmental & Atmospheric Sciences
The most abundant intrusive ingenious rock found at the earths surface is:
What will be an ideal response?
Environmental & Atmospheric Sciences