Choose the one most appropriate letter for each.
A. sharks
B. crocodile
C. placental mammal
D. caecilians
E. lancelets
F. birds
G. snakes
H. placoderms
I. lampreys
J. opossum
K. tunicates
L. platypus
M. bony fishes
N. salamanders
A. cartilaginous skeleton; jaws
B. reptile with four-chambered heart
C. separate openings for the urinary, reproductive, and excretory systems
D. legless amphibian
E. invertebrate chordate; no metamorphosis
F. endotherm with feathers
G. limbless reptile
H. most primitive fishes with jaws; extinct
I. modern-day parasitic jawless vertebrate
J. North America's only native marsupial
K. adults are barrel-shaped and secretes a covering of polysaccharides
L. egg-laying mammal
M. swim bladder for buoyancy
N. larvae typically have gills and develop lungs as they mature
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A ____________ is an abnormally growing mass of cells that is actively spreading through the body.
Fill in the blank(s) with the appropriate word(s).
The letter “E” above represents
a. uterus. b. ovary. c. vagina. d. urinary bladder. e. pelvic girdle.
Isolating and purifying a protein from biological materials to make a biotech product is known as ________
A) bioprospecting B) bioprocessing C) bioremediation D) biofermentation E) bioengineering
All of the following structures are associated with lycophytes EXCEPT
A. rhizome. B. microphylls. C. archegonia. D. microspores.