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1) what is the molecular formula for 5 glucose molecules?
a. c30h50o25
b. c30h60o30
c. c30h52o26
d. c6h24o12
2) ______ were the first vertebrates to live on land and they evolved from _____.
a. amphibians; fish
b. reptiles; amphibians
c. mammals; reptiles
d. amphibians; lancelets
3) evolutionary change above the species level is referred to as __________, whereas
evolutionary changes below the species level is known as _____________.
a. convergent; divergent
b. macroevolution; microevolution
c. microevolution; macroevolution
d. punctuated; gradualistic
4) which kind of t cells regulate the immune response by producing stimulatory
lymphokines?
a. memory t cells (tm)
b. suppressor t cells (ts)
c. cytotoxic t cells (tc)
d. helper t cells (th)
5) which of the following is not a function of the hypothalamus?
a. influences the blood pressure
b. regulates appetite
c. controls body temperature
d. balances the water balance in the body
e. all are functions of the hypothalamus.
6) in _________, proteins on the surface of the sperm are not able to bind to proteins on
the surface of the egg.
a. temporal isolation
b. behavioral isolation
c. mechanical isolation
d. gametic isolation
7) in some plants, the sperm can not reach the egg because the stigma prevents
formation of the pollen tubes. this is an example of
a. temporal isolation.
b. behavioral isolation.
c. gametic isolation.
d. mechanical isolation.
8) a shortened snout and a relatively flat face are associated with
a. a decline in the importance of vision and an increase in reliance on smell.
b. bilateral symmetry and aquatic reproduction.
c. a decline in the importance of smell and an increase in reliance on vision.
d. a terrestrial life style.
9) which protistan structure is not correctly matched with its function?
a. pseudopodia - movement and feeding
b. cyst - a reproductive structure
c. trichocyst - defense and capture of prey
d. pyrenoid - synthesis of starch
10) under which of the following circumstances would a dna microarray be useful?
a. it would enable a researcher to determine the differences in gene expression between
cell types.
b. researchers are trying to determine if an individual has inherited a genetic disease
from their parents.
c. it would enable doctors to determine which genes are responsible for producing
diseased tissue in an individual.
d. all of these are circumstances in which a dna microarray would be useful.
e. none of these are circumstances in which a dna microarray would be useful.
11) in the moss life cycle, the ______ is the dominant generation.
a. haploid gametophyte
b. diploid gametophyte
c. haploid sporophyte
d. diploid sporophyte
12) which of the following tissue types are found only in the zone of cell division of the
root tip?
a. xylem & phloem
b. endodermis
c. ground meristem
d. none of these are restricted to just the zone of cell division of the root tip.
e. all of these are restricted to the zone of cell division of the root tip.
13) evidence for plants evolution from a freshwater algal species is supported by which
of the following?
a. both green algae and plants have chlorophylls a and b and various accessory
pigments.
b. both green algae and plants store excess carbohydrates as starch and have cellulose in
their cell walls.
c. molecular evaluation of ribosomal rna provides evidence of the evolutionary
relationship of plants and green algae.
d. all of the choices are evidence.
14) microvilli serve to
a. absorb nutrients.
b. secrete bile.
c. produce antibodies.
d. synthesize vitamins.
15) which of these vascular tissue cells is alive but lacks a nucleus?
a. tracheid
b. sieve-tube members
c. vessel element
d. companion cell
