A horseshoe-shaped crown of tentacles used by many invertebrates for feeding is called a:
A. protostome
B. fimbrium
C. lophophore
D. trochophore
E. rhizophore
C. lophophore
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At one time, the pituitary was known as the ‘master gland’. Explain why this name is both fitting and
misplaced. What will be an ideal response?
Aneuploidies describe:a
a phenomenon that only occurs in plants. b. a condition in which an extra chromosome is present or one is absent. c. a defect that is always fatal in humans. d. an uncommon condition in humans. e. mutations that almost always have a beneficial effect on an individual.
_______ are a type of cilia; used to move things to mouth parts; aids in feeding
Fill in the blank(s) with the appropriate word(s).
Which of the following functions as a biological catalyst?
A) Energy-carrier molecule B) Substrate C) Enzyme D) Amino acid E) Steroid