The figure is a photomicrograph of
a. a nucleus.
b. a Golgi body.
c. endoplasmic reticulum.
d. a vacuole.
e. a nucleoid.
The following questions refer to the age structure diagrams above.
The age structure diagram for countries with a 2.1 total fertility rate is indicated by
a. A.
b. B.
c. C.
d. D.
e. none of these.
The photograph above of the aphid and the wasp is an example of
a. mimicry.
b. display behavior.
c. warning coloration.
d. chemical defenses.
e. biological control of pests.
The glandular organ represented by the letter “A” in the above figure is the ____ gland
that makes/performs ____.
a. hypothalamus; antidiuretic hormone
b. pituitary; follicle stimulating hormone production
c. adrenal gland; epinephrine
d. pancreas; insulin
e. none of these
The glandular organ represented by the letter “A” in the above figure is the ____ gland
that makes/performs ____.
a. hypothalamus; antidiuretic hormone
b. pituitary; follicle stimulating hormone production
c. adrenal gland; epinephrine
d. pancreas; insulin
e. none of these
Labeling.
rectum
Labeling.
Hair follicle
Labeling.
vas deferens
Labeling.
pineal gland
Labeling.
labium minor
trachea
microtubules
Labeling.
Style
__________ is the arrival of pollen grains on a receptive stigma.
Like ____, phosphorus can only be taken up by plants in ____.
a. carbon; ionized form
b. nitrogen; compounds
c. nitrogen; ionized form
d. hydrogen; ionized form
e. carbon; compounds
Abscisic acid
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
e. blue-green pigment that absorbs light energy
f. low-temperature stimulation of flowering
g. stimulates stomata closure and might be involved in root geotropism
h. stimulates fruit ripening
i. reproduces in spring
j. produces only roots, stems, and leaves the first growing season and produces flowers
the second year
k. occurring on a 24-hour cycle
l. flowers in autumn
m. a nonhormonal plant growth regulator
n. lives for only one growing season
o. promotes stem elongation in plants
p. pigment involved in flowering process
Stomach motility
a. decreases following a heavy meal.
b. moves chime through the pyloric sphincter.
c. is unaffected by emotional state or external environmental factors.
d. may be retarded when stretch receptors on the stomach wall are activated.
e. is increased by hormones released in response to high stomach acidity.
Antibodies can be produced against all of the following EXCEPT
a. viruses.
b. bacterial cell walls.
c. fungi.
d. toxins.
e. all of these can be bound by an antibody.
The cervix is part of the
a. labium minor.
b. ovary.
c. uterus.
d. oviduct.
e. vagina.
Respond to the following statements in reference to the five hormones listed below.
a. estrogen
b. luteinizing hormone
c. somatotropin
d. oxytocin
e. antidiuretic hormone
The mammary glands are the target for this hormone.
The organs of excretion in flatworms are
a. nephridia.
b. contractile vacuoles.
c. Malpighian tubules.
d. flame cells.
e. book lungs.
The hormone oxytocin affects ____ in many mammals.
a. labor and delivery
b. lactation
c. pair bonding
d. maternal behavior
e. all of these
abstinence
Choose the one most appropriate answer for each.
a. the production and secretion of milk
b. sloughing off of endometrium stops permanently
c. induced dislodging and removal of an embryo or fetus from the uterus
d. an abortion that occurs spontaneously
e. the burrowing of the blastocyst into the uterine lining
f. the release of an egg from the ovary
g. the release of seminal fluid from the male reproductive tract
h. a 100-percent-effective method of preventing conception
i. a highly unreliable form of birth control
j. the periodic elimination of the uterine lining
k. characterized by involuntary muscle contractions, release of tension, and warmth
l. sexual intercourse
m. sperm and egg cannot meet because a section of oviduct is missing
n. cutting and tying of vasa deferentia
Thorough mixing of oxygen and nutrients within lakes in temperate regions occurs in
a. winter and summer.
b. winter and spring.
c. spring and summer.
d. spring and autumn.
e. summer and autumn.
Which of the following junctions influences the passage of ions and small molecules
between cells?
a. gap
b. adhering
c. loose
d. tight
e. gated
Choose the one most appropriate response for each.
a. contain enzymes for intracellular digestion
b. are primary cellular organelles where proteins are assembled
c. package cellular secretions for export
d. extract energy stored in carbohydrates; synthesize ATP; produce water and carbon
dioxide
e. synthesize subunits that will be assembled into two-part ribosomes in the cytoplasm
f. transcribe, translate hereditary instructions into specific proteins
g. store substances
h. encode hereditary information
i. help distribute chromosomes to the new cells during cell division
j. convert light energy to chemical energy stored in the chemical bonds of glucose or
starch
Ribosomes
The prokaryote operon model explains gene regulation at the level of
a. replication.
b. transcription.
c. transcript processing.
d. transcript transport.
e. translation.
Parasitized caterpillars eat more alkaloid-rich food in order to:
a. poison themselves.
b. poison the parasite.
c. give themselves better nutrition to fight off the parasite.
d. kill themselves so the parasite will die with them.
e. all caterpillars perfer alkaloid-rich food.
Energy is commonly defined as “the capacity to do work.” This definition is
a. incorrect.
b. adequate in the physical sciences.
c. adequate in the biological sciences.
d. a clue to the actual properties of the concept.
e. not accepted by most scientists.
Polar bears are top predators, and tests on their tissues have shown a surprising
a. resistance to warming.
b. amount of protein.
c. resistance to disease.
d. amount of mercury and organic pesticides.
e. evidence of none of these.
Respond to the following statements in reference to the five endocrine glands listed
below.
a. adrenal cortex
b. ovary
c. pineal
d. parathyroid
e. thymus
This gland controls circadian rhythms.
Which is(are) the principal substance(s) that regulate(s) thigmotropism?
a. auxin and ethylene
b. gibberellin and ethylene
c. abscisic acid and auxin
d. cytokinin and abscisic acid
e. none of these
evaporation
Choose the one most appropriate answer for each.
a. do not maintain the same body temperature at all times; are capable of internal heat
production
b. heat energy is released to the air when liquid water converts to gaseous form
c. bulk flow of protein-free plasma from capillaries into Bowman’s capsule
d. animals with more or less constant body temperature
e. emission of heat from body surface when environmental temperature is lower than
the body temperature
f. movement of ions from peritubular capillaries into nephron tubules
g. loss of too much body heat
h. heat next to the body’s surface undergoes mass transport by air or water currents
i. active and passive transport of solutes from peritubular capillaries into the glomerular
capillaries
j. a long, slender, tubular unit in the vertebrate kidney that forms urine
k. body temperatures rise and fall with environmental changes
l. secreted by adrenal glands; influences sodium reabsorption
m. passive transport of water; active and passive transport of solutes out of the nephron
into peritubular capillaries
n. heat energy is transferred from high to low temperature regions due to collisions
between adjacent molecules
o. released from the posterior lobe of the pituitary in response to hypothalamic signals
p. toxic substances are extracted from blood circulating in cellophane tubes suspended
in a warm-water bath
q. erection of hairs and feathers by smooth muscles in the skin
Recombinant DNA is any DNA that
a. has been cut by restriction enzymes.
b. is at least four to eight base pairs in length.
c. has had its gene sequence rearranged.
d. consists of base pairs from two or more organisms of the same or different species.
e. is none of these.
Mollusks
Choose the most appropriate answer for each.
a. two pairs of legs per segment
b. tiny, flattened, crawling forms
c. planarians, flukes, tapeworms
d. nematodes
e. snails, squids, clams
f. wheel animals
g. flagellated collar cells present
h. jellyfish and corals
i. crustaceans, ticks, and insects
j. polychaetes, earthworms, leeches
k. sea urchins, sea stars
The following questions refer to the figure above.
The structure labeled “A” in the figure is a(n)
a. club-shaped reproductive cell.
b. zygote.
c. ascus.
d. gill from the underside of a mushroom.
e. spore sac.
The anatomical structure identified with the letters “B” and “E” in the figure above is
a. the arterial wall.
b. the lumen.
c. atherosclerotic plaque.
d. the capillary wall.
e. none of these.
The following questions refer to the figure above of a human femur.
The nutrient canal is indicated by
a. A.
b. B.
c. C.
d. D.
e. E.
Which eye color has the gene combination to deposit the most melanin in the iris?
a. blue.
b. gray.
c. brown.
d. green.
e. all are the same.
The figure above represents
a. a chromosome in the G1 phase of interphase.
b. two chromosomes in metaphase plate.
c. an original chromosome with a duplicate.
d. the entire genome of the organism.
e. none of these.
Respond to the following statements in reference to the five kinds of species
interactions listed below.
a. competition
b. predation
c. mutualism
d. commensalism
e. parasitism
In this interaction, one species benefits while the other is neither harmed nor benefited.
J-shaped curve
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 is most logical from a health perspective?
a. Light skin and little exposure to sun.
b. Light skin and extensive exposure to sun.
c. Dark skin and little exposure to sun.
d. Dark skin and lots of exposure to sun.
e. Light skin and little sun, or dark skin and lots of sun.
Nitrogen, with an atomic number of 7, has ____ electrons in the first energy level and
____ electrons in the second energy level.
a. 1; 6
b. 2; 5
c. 3; 4
d. 4; 3
e. 5; 2
Which of the following lacks a nucleus?
a. bacterial cell.
b. fungus cell.
c. animal cell.
d. protist cell.
e. all of these have a nucleus.
Some conditions like progeria do not run in families despite being autosomal dominant.
How is that possible?
The vertebrate central nervous system is a brain and _________.
Which respiratory volume would emphysema have the greatest impact on?
__________ promotes senescence and abscission. It also inhibits growth of roots and
stems.
Why is back pain so common in humans?
Some clones of the original immune cells are __________ cells, long-lived B and T
cells reserved for future encounters with the antigen.
If wire hair (W) is dominant to smooth hair (w), and you find a wire-haired puppy, how
would you determine its genotype by a genetic breeding experiment? Give both the
genotype and phenotype involved with the cross with the unknown.
Why is it so difficult to identify the beginnings of the hominin line?
The process of gene expression includes two steps: __________ and __________.
Ants, termites, and some other insects as well as naked mole-rats are __________ and
thus include sterile workers who care for the reproducing members of the group.
The __________ sensations arise from sensory receptors located in skin, or near
muscles or joints.
Make a list how you can reduce your negative impacts on our living planet?
Labeling.
indicates an I band.
Signals from motor neurons result in action potentials in muscle fibers, which in turn
causes the __________ to release stored calcium ions.
__________ is a field of study concerned with the origins, evolution, and persistence of
life on Earth as it relates to life in the universe.
A __________ dominates bryophyte life cycles.