Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

BIOL Exam 1 > Exam One > Flashcards

Exam One Flashcards

1
Q

Which of the following taxonomic categories includes the fewest number of species?

A

Panthera

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Animals that posses homologous structures probably ______.

A

evolved from a common ancestor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Which would be the most suitable outgroup species for a cladogram involving the other answer choices?

A

tuna

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Which is the correct way to write the scientific name for humans?

A

Homo sapiens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

When describing a group of animals, you speak about an ancestral species and some but not all of its descendants. This is an example of a _____.

A

paraphyletic group

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Hair on mammals when compared to other vertebrates is an example of a _____.

A

shared derived character

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Which broad taxonomic group is not a domain?

A

Plantae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

If you were putting members of each of the following taxa in a box, which would need the biggest boxes?

A

domain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

You discover two trees that each have thorns to protect them from herbivores, but they are in different classes of plants, and many non thorny plants are between them on the tree of life. What has happened?

A

convergent evolution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

You are studying a strange new organism. Examination of its structure shows it to be truly multicellular. Where would you begin to classify it?

A

Eukarya

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Why is using shared derived characters to figure out how organisms are related better than using shared ancestral characters?

A

They show changes during the history of life?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What should animals with radial symmetry be better able to do than those with bilateral symmetry?

A

deal effectively with food distributed homogeneously in all directions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The ____ gene family underwent a series of duplications.

A

Hox

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Most animals share a unique _____ containing family of genes.

A

homeobox

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

___ ___ regulate the formation of the anterior-posterior axis.

A

Hox genes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Earthworm –>

A

Coelomate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Planarian –>

A

Acoelomate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

In which type of cleavage pattern does each cell have the capacity to develop into a complete embryo?

A

indeterminate cleavage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Taxonomic level Eumetazoa contains :

A
  1. Deuterostomia
  2. Lophotrochozoa
  3. Ecdysozoa
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Characterize(s) an animal body plan :

A

symmetry , tissues , body cavity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Groups in order :

A
  1. Porifera
  2. Cnidaria
  3. Aceola
  4. Nematoda
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Which is a member of the Bilateria?

A

Nematoda

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

You are dissecting an unidentified animal. It is radially symmetric and has no body cavity. To what phylum might it belong?

A

Cnidaria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

You are dissecting an unidentified animal. It is bilaterally symmetric and has no body cavity. To what phylum might it belong?

A

Platyhelminthes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Which phylum has a water vascular system?

A

echinoderms

26
Q

Found in the body of a sponge:

A
  1. Spongocoel
  2. Osculum
  3. Mesohyl
27
Q

All ____ have the similar body plan.

A

molluscs

28
Q

Three-quarters of living species are _____.

A

gastropods

29
Q

The phylum ____ has eight major clades.

A

Mollusca

30
Q

have an open circulatory system – have well-developed sensory organs

A

Arthropods

31
Q

Arthropod bodies are completely covered by a ___.

A

cuticle

32
Q

Terrestrial arthropods have internal structures specialized for ___ ___.

A

gas exchange

33
Q

If you wanted to show an example of segmentation to a group of visiting students, which phylum would be the best choice?

A

Arthropoda

34
Q

If you wanted to obtain a large amount of nervous tissue with the least amount of dissection and processing, what phylum would you use for your sample?

A

Chordata

35
Q

A confused friend from your course has made a Halloween costume that is supposed to show one animal phylum. It has a hard outer shell and a water vascular system. You point out that the costume combines features of ___.

A

Arthropoda and Echinodermata

36
Q

If you discovered a new organism with 10 jointed legs, you expect it to have ___.

A

muscles attached to an exoskeleton

37
Q

The best example of an animal phylum with enhanced overall surface area is ___.

A

Platyhelminthes

38
Q

Which correctly describes phylogenetic relationships among birds, mammals, and reptiles?

A

Birds share the closest common ancestor with dinosaurs.

39
Q

Which group soon outcompeted amphibians on land due to their watertight skin and eggs?

A

reptiles

40
Q

Which chordate group has all four key chordate characteristics as an adult, not just as an embryo?

A

lancelets

41
Q

Which osteichthyan structure allows bony fishes to control their buoyancy using gases from their blood?

A

swim bladder

42
Q

The lateral line system can be found in aquatic ___.

A

gnathostomes

43
Q

line organs form a row along each side of the body – line organs are sensitive to vibration

A

Lateral

44
Q

Archaeopteryx differed from modern birds in that it ___.

A

could not take off from a standing position

45
Q

Which is the closest living group to the primates?

A

monotremes

46
Q

If you discovered a fossil that fit between the crocodilians and pterosaurs, what feature would it probably have?

A

amniote eggs

47
Q

Which is the oldest amniote group?

A

turtles

48
Q

If you introduced the following groups of vertebrates to a newly formed island with little surface water, which would probably become dominant?

A

reptiles

49
Q

Men who overuse synthetic testosterone (as in anabolic steroids) may experience testicular atrophy, reduced sperm count, and low levels of circulating FSH. The physiological explanation for these observations is ____.

A

negative feedback

50
Q

In whales and most other mammals, evolutionary adaptions that enable sufficient exchange with the environment are specialized structures that in most cases lie within the body and are branched or folded. Which of the following is not an example of this?

A

The shape of a parasitic tapeworm places most cells of the worm in direct contact with its environment.

51
Q

food processing (ingestion, digestion, absorption, elimination)

A

digestive

52
Q

locomotion and other movement

A

muscular

53
Q

disposal of metabolic wastes, regulation of osmotic balance of blood

A

excretory

54
Q

coordination of body activities, detection of stimuli and formulation of responses to them

A

nervous

55
Q

can act on neurons, muscle cells, and cells or glands that produce secretions

A

nervous system impulses

56
Q

____ structures that may be extensively branched or folded enable exchange with the environment.

A

Specialized

57
Q

In organisms with body plans that are more complex than hydra or tapeworm, harmless ____ microorganisms provide exchange surfaces for nutrient and gas transfer to body cells.

A

bloodborne

58
Q

____ ____ link surfaces for nutrient and gas exchange to body cells.

A

interstitial fluid

59
Q

The river otter is a regulator rather than a conformer with regard to the environmental variable temperature because ____.

A

it uses internal mechanisms to control internal change in the face of external fluctuation

60
Q

____ is when internal conditions are brought into alignment with external variables such as altitude changes.

A

Acclimatization

61
Q

The standard metabolic rate (SMR) of an American alligator is less than 1/20th the energy used by a comparably sized adult human. One conclusion that can be drawn from this statement is that ___.

A

ectothermy has a lower energetic requirement than endothermy

BIOL Exam 1 (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions