Introductory Biology II, Exam III Name:____________________________________
Spring, 2012
Instructions: There are 50 questions. Write down the best answer for each one. Please make sure that
you fill out your scantron correctly. In case of discrepancy, the answer on the scantron will be
considered your answer. When you’re finished, please hand in the scantron. Good luck!
d___1) Hearing is a:
a) thermoreceptor b) chemoreceptor c) electromagnetic receptor d) mechanoreceptor
e) pain receptor
e___2) Leprosy can shut down:
a) thermoreceptors b) chemoreceptors c) electromagnetic receptors d) mechanoreceptors
e) pain receptors
d___3) Where do you have the most nerve endings (e.g., touch receptors)?
a) back b) forearm c) calf d) fingertips
a___4) True or false: the three middle ear bones serve to amplify sound:
a) true b) false
a___5) True or false: the round window is used to dampen (absorb) vibrations:
a) true b) false
d___6) Healthy (younger) humans can hear what range of sounds?
a) 10 - 100 Hz b) 20 - 200 Hz c) 30 - 300 Hz d) 20 - 20,000 Hz
e___7) Bats can use sound to detect an insect's:
a) location b) speed c) size d) texture e) all of the above
b___8) Used to detect movement:
a) utricle and saccule b) semicircular canals c) pinna d) stapes
a___9) True or false: dogs and humans have about the same number of different kinds of smell
receptors:
a) True b) False
d___10) The whites of your eyes are made up of the:
a) retina b) cornea c) choroid d) sclera e) iris
e___11) Gives your eyes their color:
a) retina b) cornea c) choroid d) sclera e) iris
b___12) The circular muscles (= ciliary muscles) surrounding your lens are relaxed when you are
looking at something:
a) close up b) far away c) impossible to tell
c___13) Cones come in three different varieties, sensitive to:
a) yellow, orange & brown b) yellow, green & pink c) red, green & blue
d) purple, orange & yellow e) magenta, yellow & cyan
a___14) True or false: the right side of both eyes goes to the right side of the brain:
a) true b) false
a___15) True or false: some snakes (e.g., pit vipers) can detect infrared radiation:
a) true b) false
a___16) Humans have an:
a) endoskeleton b) exoskeleton c) hydrostatic skeleton d) none of the above
a___17) True or false: muscles can only contract:
a) true b) false
e___18) When an action potential arrives from a nerve, the sarcoplasmic reticulum releases:
a) Na+ b) K+ c) Cl- d) Mg++ e) Ca++
d___19) Myosin heads attach to:
a) Tropomyosin b) myofibrils c) sarcomeres d) actin
a___20) The flight muscles of chickens and pheasants are made up of:
a) fast fibers b) slow fibers c) medium fibers d) painfully slow fibers
a___21) True or false: your brain contains ventricles:
a) true b) false
b___22) The outside layer/covering of the meninges is called the:
a) pia mater b) dura mater c) arachnoid membrane d) doesn't matter
b___23) The autonomic nervous system is:
a) voluntary b) non-voluntary
e___24) Coordinates information coming from different parts of the body and sends it to the correct
spot on the cortex:
a) medulla b) pons c) hippocampus d) coropus callosum e) thalamus
a___25) True or false: the cerebellum sends motor information to the thalamus (and then to the motor
cortex):
a) true b) false
a___26) Controls breathing, heart and blood vessel activity:
a) medulla b) hypothalamus c) hippocampus d) coropus callosum e) thalamus
c___27) Registers emotional content:
a) medulla b) hippocampus c) limbic system d) reticular formation
c___28) If you do well on this exam, you have successfully put a lot of (trivial?) facts into your:
a) immediate memories b) short term memories c) long term memories
b___29) Required for learning:
a) medulla b) hippocampus c) limbic system d) reticular formation
c___30) Plants evolved from:
a) fungi b) bacteria c) green algae d) none of the above
a___31) True or false: spores are haploid:
a) true b) false
d___32) An example of a non-vascular plant:
a) Pine tree b) Oak tree c) Fern d) Moss
a___33) True or false: liverworts are called “liver”worts because they were once thought to resemble a
liver:
a) true b) false
a___34) Gymnosperms include:
a) Pine tree b) Oak tree c) Fern d) Moss
c___35) Gymnosperms reproduce using:
a) flowers b) internal fertilization c) cones d) spores on the underside of leaves
e___36) A male part of a flower:
a) stigma b) ovary c) style d) carpel e) anther
e___37) A plant that has flowers that stink like rotting meat is pollinated by:
a) bees b) butterflies c) bats d) wolves e) flies
a___38) True or false: some flowers open at night and are pollinated by bats:
a) True b) False
e___39) Roots can do all of the following except:
a) anchor the plant b) store food c) absorb water d) absorb nutrients
e) there are no exceptions on this list
a___40 Xylem transports:
a) water up the plant b) nutrients around the plant c) none of the above
b___41) Plants that live two years are called:
a) annuals b) biennials c) perennials
c___42) Plants get thicker (secondary growth) by using:
a) apical meristem b) cork cambium c) vascular cambium
a___43) Non-functioning xylem, found closer to the center of a tree:
a) heartwood b) sapwood
a___44) True or false: in temperate zones trees can be aged by counting rings. This can be done
without killing the tree:
a) true b) false
b___45) True or false: to determine how many rats are living in the sewer systems and subway tunnels
of D.C., I need to count every single one:
a) true b) false
a___46) A population that grows without limit (nothing stops it's growth) has what kind of growth?
a) exponential b) logistic c) constant d) sigmoid
e___47) Which of the following does NOT affect carrying capacity:
a) food b) territory c) nesting sites d) predation
e) there are no exceptions on this list
d___48) An example of a predator-prey relationship we discussed in class that exhibits strong up and
down cycles over many years:
a) ant-lizard b) human-cow c) squirrel-hawk d) lynx-hare e) lion-gazelle
b___49) Squirrels, which die equally at any age, have what kind of survivorship curve?
a) I b) II c) III d) IV
b___50) Humans are:
a) r-slelected b) k-selected c) neither
Reminders:
1) Please put your G-number on the scantron before you hand it in.
2) You may keep the exam.
3) Use blackboard to look up your score (hopefully within 24 hours).