Disclaimer: While every reasonable effort is made to ensure that the information provided is accurate, no guarantees for the currency or accuracy of information are made. It takes several proof readings and rewrites to bring the quiz to an exceptional level. If you find an error, please contact me as soon as possible. Please indicate the question description because server may randomize the questions and answers.

Go to: Midterm I | Midterm III | Final Exam

Biology 205 (BIOL 205-UCAL) Midterm II

Please wait while the activity loads.
If this activity does not load, try refreshing your browser. Also, this page requires javascript. Please visit using a browser with javascript enabled.

If loading fails, click here to try again

Some questions have hints and explanations. Click Start to begin.

Start

Congratulations - you have completed Biology 205 (BIOL 205-UCAL) Midterm II.

You scored %%SCORE%% out of %%TOTAL%%. With incorrect multiple tries your score is %%PERCENTAGE%%

Your performance has been rated as %%RATING%%

Your answers are highlighted below.

Question 1

Which of the following in our Nervous System responsible for insulating axons?

A	glia
B	myelin sheath
C	myelin sheath and glia
D	axon hillock
E	cell body

Question 2

In cladistics, what do you call the organisms that is known to have diverged before the linage of interest?

A	ingroup
B	derived organisms
C	outgroup
D	drifted organisms

Question 3

Based on the three main categories of how animals obtain and process food, which of the following does not fit with the others?

A	Crows
B	Cockroaches
C	Human
D	Gorilla
E	Raccoons

Question 3 Explanation:

Gorilla belongs to the herbivores while others belongs to the omnivores.

Question 4

During digestion, fats brake down to fatty acids and what other chemical compound?

A	Monosaccharides
B	Hydrochloric acid
C	Amino acids
D	Glycerol
E	Nucleotides

Question 5

Humans are belong to __I__ Domain and __II__ Phylum.

A	I. Archaea II. Primates
B	I. Primates II. Homininae
C	I. Eukaryota II. Chordata
D	I. Chordata II. Primates
E	I. Eukaryota II. Primates

Question 6

Which of the following organism is not belong to the apes category?

A	Orangutans
B	Chimpanzees
C	Monkeys
D	Bonobos
E	Gibbons

Question 6 Explanation:

But note that both monkeys and apes are part of the anthropod group.

Question 7

What is the main reason for the evolutionary development of amniotes?

A	As a counteraction to balance the pressure and temperature conditions of the zygote.
B	Reduce the zygote breakdown.
C	Adaptation to terrestrial environments.
D	Protect the eggs from predators.

Question 8

According to current fossil record and our understanding, which came first; bipedalism, large brains or both around the same time?

A	Both around the same time
B	Not enough evidence to support either way.
C	Large brains
D	Bipedalism

Question 9

Which of the following belongs to Peripheral nervous system (PNS)?

I. Cranial nerves
II. Spinal nerves
III. Brain
IV. Spinal cord

A	None of the listed items.
B	III and IV
C	II and IV
D	All of the listed items.
E	I, II and III
F	I and II

Question 10

Some of the muscles and glands in the digestive track is controlled by...

A	...sympathetic division of the autonomic nervous system.
B	...central nervous system.
C	...motor system of the peripheral nervous system.
D	...sympathetic division of the motor nervous system.
E	...enteric division of the autonomic nervous system.

Question 11

Which of the following statements about animal digestive system is true?

A	Cellulose-digesting microbes are equally abundant both in carnivores and herbivores.
B	Omnivores have longer digestive track then carnivores of similar body size because vegetation is more difficult to break digest.
C	All vertebrates process hard solid foods in the Gizzard before the nutrients are absorbed by the intestine.
D	Meat is more difficult to digest than vegetable matter because of its high protein content.

Question 12

What is the primary function of a placenta?

A	Protection of embryo from any external forces; chemical and physical.
B	Storing and processing nutrients.
C	Controlling temperature, pressure and chemical compounds for the embryo.
D	Gas exchange for breathing.
E	Diffusion of nutrients from mother's blood to embryo's blood.

Question 13

Mammals belongs to the amniotes. However, mammals are different from reptiles (also amniotes) because...

A	...mammals do not produce eggs.
B	...mammals have hair and mammary glands.
C	...mammals are part of the primate group.
D	...mammals have thick notochords.
E	...mammals are also tetrapods.

Question 14

What is the resting potential voltage for human nervous system?

A	+50 mV
B	-30 mV
C	-70 mV
D	10 mV
E	100 mV

Question 15

What is the primary weakness in majority of modern phylogenetic trees?

A	The rapid evolutionary events are poorly recorded and therefore often not included in phylogenetic trees.
B	The lack of fossil record to trace the phylogenetic sequence to a common accessory.
C	The lack of timing for each lineage event.
D	The lack of DNA evidence to support most of the lineage events,

Question 16

Which of the following is a common characteristic of hagfishes and lampreys?

A	Hagfishes lack jaws and lampreys lack endoskeleton.
B	They both lack endoskeleton.
C	They both lack jaws.
D	They both produce slime when threatened and it can be used for manufacturing textiles.

Question 17

During digestion, nucleic acids brake down what chemical compound/component?

A	Amino acids
B	Nucleotides
C	Fatty acids
D	Glycerol
E	Monosaccharides

Question 18

You open the Biology 205 exam booklet. You read the first question and realized that unlike Geology 449, you can actually answer the question using logic, reasoning and memory. After analyzing the question, you use your hand to record an answer. What are the steps which your nervous system takes to process above scenario?

A	Sensory receptor takes in the information and passed to the integration section of the Central Nervous System through Peripheral Nervous System. Once the information is processed, it is passed to organs through Peripheral Nervous System.
B	Sensory receptor takes in the information and passed to the integration section of the Central Nervous System directly. Once the information is processed, it is passed to organs through Peripheral Nervous System.
C	Sensory receptor takes in the information and passed to the integration section of the Peripheral Nervous System through Central Nervous System. Once the information is processed, it is passed to organs through Central Nervous System.
D	Sensory receptor takes in the information and passed to the integration section of the Peripheral Nervous System through Central Nervous System. Once the information is processed, it is passed to organs through Peripheral Nervous System.
E	Sensory receptor takes in the information and passed to the integration section of Central Nervous System directly. Once the information is processed, it is passed to organs through Central Nervous System.

Question 19

The following diagram is a phylogenetic tree of primates. What organisms are indicated by I, II, III, and IV respectively?

A	I. New World monkeys II. Old World monkeys III. Tarsiers IV. Chimpanzees
B	I. Old World monkeys II. New World monkeys III. Gibbons IV. Orangutans
C	I. New World monkeys II. Old World monkeys III. Gibbons IV. Chimpanzees
D	I. Tarsiers II. New World monkeys III. Old World monkeys IV. Gibbons
E	I. Tarsiers II. New World monkeys III. Gibbons IV. Orangutans

Question 20

Which part of this diagram of the human brain depicts the thalamus?

Image Credit: Campbell Biology Concepts & Connections by Reece, Taylor, Simon, Dickey and Soctt

A	Part B
B	Part C
C	Part A
D	Part D

Question 21

Which of the following statement is false?

A	Cecum of a cow is much larger than that of a human.
B	Food molecules are chemical broken down by specialized enzymes.
C	Humans are generically closer to Chimpanzees than to Gorillas.
D	All tissues in a healthy human body have the ability to regenerate.
E	Integration of sensory data occurs within the Central Nervous System.

Question 21 Explanation:

Nervous tissues do not regenerate like other tissues. In rare cases, the regeneration is extremely slow and often does not recover back to the original condition.

Question 22

Were do we find most of the evidence for bipedalism?

A	Based on the size of the exoskeleton.
B	Based on the length ratio of limbs to arms.
C	Based on the type of tools utilized by the arthropods.
D	Based on the placement of spinal cord opening on the skulls.
E	Based on the DNA structure of arthropods.

Question 23

If a particular characteristic of a clade is not found in their ancestor, it is most likely a...

A	...shared derived character.
B	...ancestral character.
C	...shared ancestral character.
D	...genetically evolved character.
E	...genetically modified character.

Question 24

If two groups of organisms interbreed, but resulting organism can no longer produce viable offspring of his/her own, the system is said to be...

A	...experiencing a reduced hybrid fertility.
B	...in gametic isolation state.
C	...experiencing a hybrid breakdown.
D	...experiencing a reduced hybrid viability.
E	...in temporal isolation state.

Question 25

What is the primary function of chorion and allantois in amniotic egg?

A	Protection of the embryo from the outside environment through temperature regulation.
B	Enables the embryo to obtain oxygen from air and dispose carbon dioxide.
C	Structure for the shell in which the honeycomb allantois attached itself to chorion.
D	Production and processing of nutrients for the embryo.

Question 26

Which of the following anthropoids is well known to be the first one to use sophisticated stone tools?

A	Homo sapiens
B	Homo ergaster
C	Homo neanderthalensis
D	Homo erectus
E	Homo habilis

Question 27

What is the best description for Humpback whales?

A	They are suspension feeders.
B	They are herbivores and the primary diet is eat seaweed.
C	They are substrate feeders.
D	They are omnivores that feeds on both seaweeds and fishes.
E	They are fluid feeders.

Question 28

What was the function of gill slits, which lead to the formation of jaws, at the very beginning of their evolution?

A	Breathing by exchanging oxygen atoms from the water.
B	Pumping water for movement.
C	Catching or killing the prey.
D	Trapping suspended food particles.
E	Crushing and grinding of food particles.

Question 29

The following diagram is a phylogenetic tree of primates. What organisms are indicated by VI and VII respectively?

A	Orangutans and Gibbons
B	Tarsiers and Gibbons
C	Orangutans and Gorillas
D	Gibbons and Orangutans
E	Gorillas and Chimpanzees

Question 30

Which of the clades, ray-finned fishes belongs to?

A	Chordates, Vertebrates, Jawed vertebrates, Tetrapods
B	Chordates, Vertebrates
C	Chordates, Vertebrates, Jawed vertebrates, Tetrapods, Amniotes
D	Chordates, Vertebrates, Jawed vertebrates, Amniotes
E	Chordates, Vertebrates, Jawed vertebrates

Question 31

Where do the majority of nutrients stored in the amniotic egg?

A	Allantois
B	Amnion
C	Chorion
D	Embryo
E	Yolk

Question 32

What is the first modern phylum to evolve a nervous system?

A	Molluscs
B	Cnidarians
C	Annelids
D	Arthropods
E	Planarians

Question 33

In cladistics, what is the primary criterion for grouping of organisms?

A	Common ancestral based decedents.
B	Ability to interbreed and reproduce viable offspring.
C	Common homologous and analogous features.
D	Ability to interbreed among individuals.
E	Fossil record indicating similar characteristics.

Question 34

Human brain estimated to have how many neutrons?

A	100 billion
B	800 billion
C	800 million
D	500 billion
E	100 million

Question 35

Which of the following statement is true about resting potential of human nervous system?

A	Resting neurons have a slightly negative charge inside the cell.
B	Resting neurons have a zero charge inside the cell.
C	Resting neurons have a slightly positive charge inside the cell.
D	Resting neurons for humans is about +/- 5 mV.

Question 36

Which of the following vitamins is responsible for production of nucleic acids and read blood cells?

A	Vitamin K
B	Vitamin B₁
C	Vitamin B₆
D	Vitamin B₁₂
E	Vitamin A

Question 37

Which arrow shows the release of digestive enzymes by the liver?

Image Credit: Campbell Biology Concepts & Connections by Reece, Taylor, Simon, Dickey and Soctt

A	Arrow C
B	Arrow D
C	Arrow B
D	Arrow A

Question 38

Which of these is not a member of the anthropoids?

A	Gibbons
B	Tarsiers
C	Gorillas
D	Humans
E	Monkeys

Question 39

In a hot arid environment, evolution prefer organisms with what type of adaptation(s)?

A	Organisms that have the ability to fly therefore allowing them to migrate to locations with more food/water.
B	Organisms with ectothermic metabolism.
C	Organisms that can store high volume of water within their bodies.
D	Organisms with endohermic metabolism.
E	Organisms with lungs instead of a skin-bases gas exchanges.

Question 40

Which of the following statements are true about vitamins and minerals?

A	They are compounds usually acquired from food sources. Vitamins are organic compounds while minerals are inorganic compounds.
B	They are organic substances which human do not produce its' own. Mostly acquired from food sources.
C	There are thirty essential vitamins requirements for humans according to Health Canada guidelines.
D	While it is possible to live a healthy life without minerals, all humans must requires vitamins.
E	They are chemicals produced by the monosccharies and absorbed through amino acids.

Question 41

The first tetrapods were most likely...

A	...fishes with necks and four limbs.
B	...vertebrates with complex lungs.
C	...fishes that dragged themselves from one pool of water to another.
D	...sting rays with gas exchange lungs.

Question 42

Which of the following group best describe the first vertebrates on land?

A	Bipedal vertebrates
B	Animalia
C	Tetrapods
D	Cordatas

Question 43

Why do chameleons change colour?

A	To blend into the surrounding environment.
B	For altruism and mimicry where one individual or more benefited by changing appearance,
C	To communicate with each other.
D	To warn the predators.

Question 44

The Vitamin K plays an important role in what function of the human body?

A	Collagen synthesis
B	Visual pigments and epithelial tissues
C	Blood clotting
D	Synthesis of fat
E	Amino acid metabolism

Question 45

Which of the following food molecule is not a polymer?

A	Nucleic acids
B	Protein
C	Fat
D	Saccharides

Question 46

Which of the following is a true statement about hard bones and/or cartilages?

A	Exoskeleton doesn't grow at the same rate as the physical growth of an organism.
B	They are considered to be made up of nonliving materials, but bones are cartilages are generated by living cells.
C	Primary function of the cartilages is to support mechanical movements of organisms.
D	Skeletal structure of the body is made up of about 90% cartilages.

Question 47

The fin extensions in front of the stingrays are used for...

A	...funnel in water for suspension feeding.
B	...attack prey.
C	...swim against the currents.
D	...move on the seabed and for sediment filtering.

Question 48

How do we describe a situation where a species undergo little or no change for a long period of time but characterized by sudden changes?

A	The population has experienced an allopatric speciation.
B	The species most likely increased in diversity and their hybrid population.
C	Species experienced a punctuated equilibrium.
D	This situation most likely caused by genetic drift.

Question 49

What is the relationship between evolution of feathers and flight?

A	It is difficult to prove the connection between feathers and flight due to lack of scientific evidence.
B	The feathers evolved first as an insulation mechanism and later the flight was evolved.
C	There is no relationship between them because feathers are just skin protectors.
D	The flight evolved first then feathers evolved to insulate high flying birds from old air masses.
E	The flight and feathers evolved at the same time.

Question 50

What is the evolutionary connection between the lungs and swim bladders?

A	Swim bladders evolved from lungs.
B	Lugs evolved from swim bladders.
C	They have no evolutionary connection because they are analogous features.
D	Both developed at the same time under same environmental conditions.

Question 51

Coordination and learning of new body movements is mostly controlled by what part of the brain?

A	Cerebrum.
B	Medulla oblongata in the Brain Stem.
C	Cerebellum.
D	Hypothalamus.
E	Pons midbrain in the Brain Stem.

Question 52

Peter and Rosemary Grants have studied evolutionary changes in Darwin's finches. Which of the the statements best describe the key conclusion of this study?

A	Hybrids have better survival rate than the others in a population.
B	The response to environmental changes often result in dramatic shift in phenotypes.
C	Competition for food can drive evolutionary changes and adaptations.
D	Darwin's finches are unique because they are the only population to have a large variation in beak sizes.

Question 53

Scientists have used the molecular clock model to identify the origins of HIV-1M virus which causes AIDS. What is the major assumption in molecular clock model?

A	The rate at which the HIV genome evolve is consent at all times.
B	The HIV genome is composed of fast self replicating DNA that produce a new evolutionary trait at an exponential rate.
C	The HIV virus originated from primates and transferred to human.
D	The modern HIV virus is derived from an ancestor that have the exact same characteristics as the current HIV-1M virus.

Question 54

Biologists found over 1000 different snake species on one island. This is an example of what mechanism?

A	Polyploidy
B	Sympathetic speciation
C	Adaptive radiation
D	Temporal isolation
E	Zygotic barriers

Question 55

Which of the following undergoes the fastest evolution? (fastest change in terms of time)

A	rRNA
B	DNA
C	mtDNA
D	RNA

Question 56

What is unique about PhyloCode classification?

A	It includes only the evidence from fossils record.
B	It includes only the evidence from DNA and other genetic materials.
C	It includes a common ancestor and all its decedents.
D	It includes the new classification categories such as sub-phylums and sub-domains.

Question 57

What mammal lineage do humans belong to?

A	Marsupials
B	Euterians
C	Monotremes
D	Biotremes

Question 57 Explanation:

Also known as placental mammals due to complex placentas.

Question 58

What part of the world you expect to observe marsupials in their natural habitat (modern day)?

A	Antarctic region.
B	South Asia
C	Russia and Canada
D	China
E	New Zealand

Question 58 Explanation:

Also Australia, Central and South America.

Question 59

Organisms wit which of the feeding mechanism has the most complex digestive system?

A	Substrate feeders
B	Bulk feeders
C	Suspension feeders
D	Fluid feeders

Question 60

Which of the following hominins were the earliest to colonize beyond Africa?

A	Homo erectus
B	Homo ergaster
C	Homo habilis
D	Homo neanderthalensis
E	Homo sapiens

Question 61

How many amino acids human body cannot produce its own?

A	Three
B	Five
C	Ten
D	Eight
E	Fifteen

Question 62

Amphibians dominated the Carboniferous period. However, their adaptation to different environments is hindered by...

A	...limited viable offspring.
B	...vulnerability to dehydration.
C	...limited food supply.
D	...large number of predators.

Once you are finished, click the button below. Any items you have not completed will be marked incorrect. Get Results

There are 62 questions to complete.

←

List

→

Return

Shaded items are complete.

1	2	3	4	5
6	7	8	9	10
11	12	13	14	15
16	17	18	19	20
21	22	23	24	25
26	27	28	29	30
31	32	33	34	35
36	37	38	39	40
41	42	43	44	45
46	47	48	49	50
51	52	53	54	55
56	57	58	59	60
61	62	End

Return

Credits: Based on the excellent class notes provided by, Dr. K. Ruckstuhl during Fall 2014.
FAQ | Report an Error

You may download this exam as a PDF file here.

If you get a question wrong, you can still click on the other answers. This will open up hints and explanations (if available), which will provide additional information.

Sanuja Senanayake

Biology 205 Midterm II-University of Calgary

Go to: Midterm I | Midterm III | Final Exam

Biology 205 (BIOL 205-UCAL) Midterm II

Standing on the shoulders of giants

Go to: Midterm I | Midterm III | Final Exam

Biology 205 (BIOL 205-UCAL) Midterm II

Print/Share:

Standing on the shoulders of giants