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tropical rain forest
Choose the one most appropriate answer for each.
a. northern coniferous forest
b. increases oceanic productivity
c. mosaics of tall, coarse grasses, shrubs, and low trees; even, humid forests; high
rainfall
d. stratified on rocky coasts
e. includes sediments and rocks on the ocean bottom
f. stratified communities with vines, orchids, and monkeys, and nutrient-poor soil
g. chemoautotrophs are the primary producers
h. dwarf willows, mosses, lichens, caribou, and permafrost
i. nurseries of the oceans
j. a large region characterized by its large array of dominant primary producers
Neanderthal remains have never been found in:
a. Germany.
b. Asia.
c. North America.
d. the Middle East.
e. they have been found all these places
Tissue culture techniques are used to
a. produce hundreds of identical plants.
b. propagate promising mutant plants.
c. improve food crops.
d. increase production of commercially important hybrid plants.
e. do all of these.
In eukaryotic cells, which occurs during mitosis?
a. the duplication of chromatids
b. the replication of DNA
c. synapsis and crossing over
d. fragmentation and disappearance of nuclear envelope
e. all of these
The variable in the butterfly experiment is
a. butterfly wing pattern color.
b. butterfly species.
c. bird predator species.
d. rainforest region used.
e. percentage of survivors.
The anatomical structure identified with the letter "D" in the figure above is the
a. myocardium.
b. pulmonary veins.
c. inferior vena cava.
d. right atrium.
e. heart apex.
The convergence in external morphology of sharks, penguins, and porpoises is
attributed to
a. reduced genetic variability in these groups.
b. selection pressures that are common to these groups.
c. reproductive isolation of these groups.
d. identical genes in all three groups.
e. use and disuse of the limbs.
The following items are organelles found in animal cells. Respond to the statements
below with reference to these organelles.
a. ribosome
b. mitochondrion
c. lysosome
d. Golgi body
e. endoplasmic reticulum
Aerobic respiration occurs in this organelle.
Nitrification
a. converts ammonium into nitrates.
b. reduces nitrates to nitrites.
c. converts nitrogenous compounds into free nitrogen.
d. converts atmospheric nitrogen to ammonia.
e. reduces ammonia to ammonium.
Which of the following syndromes is characterized by a karyotype with 45
chromosomes?
a. Turner
b. Down
c. androgen insensitivity
d. Klinefelter
e. cri-du-chat
Carbon is not stored in plant:
a. trunks.
b. stems.
c. roots.
d. foliage.
e. it is stored in all of these.
Which of the following layers lies next to the lumen of the intestinal tract?
a. longitudinal muscles
b. circular muscles
c. submucosa
d. mucosa
e. serosa
glandular epithelium in gastrointestinal tract
Choose the one most appropriate answer for each.
a. secretes one hormone that increases the metabolic rate and another that inhibits
calcium release from bone storage sites
b. secrete insulin and glucagon
c. secretes hormones that prepare accessory reproductive structures for reproduction
d. involved in lymphocyte maturation
e. secretes tropic hormones, growth hormone, and prolactin
f. secretes mineralocorticoids and glucocorticoids
g. in many vertebrates, helps to determine the amount and distribution of dark pigments
in the skin
h. secrete enzymes that help to form angiotensin
i. participates in reproductive physiology and responds to photoperiod change
j. releases oxytocin and antidiuretic hormone into bloodstream
k. secretes a hormone that promotes calcium release from bone storage sites
l. produces oxytocin and antidiuretic hormone
m. secretes cholecystokinin, secretin, and gastrin
n. secretes epinephrine and norepinephrine
o. secrete pheromones, milk, tears, sweat, and mucus
There are how many different kinds of amino acids in proteins?
a. 3
b. 6
c. 12
d. 20
e. 28
Respond to the following statements in reference to the five kinds of behavior listed
below.
a. imprinting
b. sexual selection
c. learned behavior
d. defense behavior
e. altruism
If the young of precocial (young that are relatively mature and mobile when hatched)
birds (e.g., chickens or ducks) are continually shown a large moving object during the
first few days of their lives, they will follow that object. This is an example of
__________.
The following questions refer to the figure above of epithelial tissues.
This tissue lines blood and lymph vessels.
a. A
b. B
c. C
d. D
e. E
population growth rate
Choose the most appropriate response for each.
a. describes a population that is experiencing unrestrained growth
b. the birth rate minus the death rate plus any inward migration and minus any outward
migration
c. the distribution of individuals at each age level in a population
d. for example, the amount of glucose in a culture flask containing bacteria
Which of the following represents an early stage in primary succession?
a. pine trees
b. moss and lichens on bare rock
c. weedy annual plants in an open field
d. climax species in succession
e. alder, cottonwood, and willow thickets
Concerning the sex chromosomes, which of the following is correct?
a. The Y chromosome carries a greater number of genes for nonsexual traits than does
the X.
b. X and Y are different in size but carry nearly equal numbers of genes.
c. The X chromosome carries more genes for nonsexual traits than does the Y.
d. The X chromosome carries only gender-related genes.
e. The X chromosome carries the SRY gene.
A gene mutation
a. is a change in the nucleotide sequence of DNA.
b. may be caused by environmental agents.
c. may arise spontaneously.
d. can occur in any organism.
e. is described by all of these.
Respond to the following statements with reference to the five components of
respiratory systems listed below.
a. pharynx
b. larynx
c. trachea
d. bronchiole
e. alveolus
This is the last component of the human lung that air flows into.
Which of the following statements is false?
a. Enzymes catalyze reversible reactions in either direction.
b. Enzymes are highly specific.
c. Most enzymes are carbohydrate molecules.
d. Enzymes do not allow some reactions to occur that would never occur without them.
e. Enzymes may be temporarily modified during their involvement with the substrate.
Respond to the following statements with reference to the five components of the
gastrointestinal tract listed below.
a. stomach
b. gallbladder
c. small intestine
d. appendix
e. large intestine
Bile salts, bile pigments, cholesterol, and lecithin are stored by this organ.
The polar transport of auxin in a plant
a. creates an uneven distribution of the hormone.
b. uses active membrane transporters to move auxin in and out of cells.
c. uses membrane pumps to move hydrogen ions out of the cytoplasm into the primary
cell wall.
d. activates enzymes that loosen cross-links between cellulose microfibrils.
e. does all of these.
Deserts typically form at ____ latitude where ____.
a. 30 degrees; warm dry air descends
b. 60 degrees; warm dry air descends
c. 0 degrees; there is intense sunlight
d. 60 degrees; warm dry air ascends
e. 75 degrees; rising air picks up moisture
Choose the proper item below for the following statements.
a. Thomas Brock
b. Stanley Miller
c. Kwang Jeon
d. Lynn Margulis
e. Oliver Hardy
He/she conducted the first primitive atmosphere simulation experiment.
Ovule
Choose the one most appropriate answer for each.
a. male spores of anthers
b. site where pollen tube usually penetrates the ovule
c. develops into a fruit at maturity
d. a 2n cell that will help form nutrients for the developing plant embryo
e. cluster of matured ovaries attached to a common receptacle
f. modified leaf with pigments and fragrance-producing cells
g. immature male gametophyte
h. female reproductive organ
i. landing platform for pollen
j. pollen-bearing structure
k. female spores of ovule
l. outermost whorl of leaf parts on a receptacle; generally green, but sometimes
pigmented
m. female gametophyte
n. matured ovaries of several flowers fused together into a single mass (for example,
pineapple, fig)
o. forms a seed at maturity
Plate tectonics theory is supported by evidence from
a. the worldwide fossil record.
b. global distribution of existing species.
c. the sea-floor spreading.
d. all of these.
e. none of these.
Choose the proper item below for the following statements.
a. Thomas Brock
b. Stanley Miller
c. Kwang Jeon
d. Lynn Margulis
e. Oliver Hardy
He/she very early provided experimental evidence for endosymbiosis.
During prophase II,
a. a new bipolar spindle forms.
b. crossing over occurs.
c. chromosomes are single-stranded.
d. the cell is diploid.
e. the nuclear envelope re-forms.
Moistening and lubrication of food occurs in the human
a. mouth.
b. esophagus.
c. stomach.
d. duodenum.
e. jejunum.
If a daughter expresses an X-linked recessive gene, she inherited the trait from
a. her mother.
b. her father.
c. both parents.
d. neither parent.
e. her grandmother.
In the image above an enzyme substrate complex is represented by
a. C.
b. D.
c. E.
d. D and E.
e. None of these.
According to the first law of thermodynamics,
a. the energy of a system may increase if there is a corresponding decrease in energy
elsewhere in the universe.
b. the amount of energy in the universe is constant.
c. chemical reactions do not create or destroy energy.
d. energy can change from one form to another.
e. all of these are true.
