Lesson 7 - Species

Question 0

Taxonomy

Answer 0

The science of naming and organizing organisms into related groups

Question 1

Carl Linnaeus

Answer 1

Swedish naturalist, founding father of taxonomy, creator of binomial species name.

Question 2

Binomial Name

Answer 2

Contains genus name (generic name) and specific epithet

Question 3

Genus name

Answer 3

Shared by all species of the same genus

Question 4

Specific epithet

Answer 4

May be shared by unrelated species (Tyrannosaurus rex, othnielia Rex, nuralagus Rex)

Question 5

Rule of priority

Answer 5

Once a species is officially given a binomial name, the name cannot be changed unless the organism turns out to not be a new species)

Question 6

Peer reviewed

Answer 6

Not published until it has been reviewed by other scientists to verify the contents are legitimate and scientifically reasonable

Question 7

Holotype

Answer 7

Physical example of the newly found species, kept in a research institution so other scientists may study it. Does not need to be a complete specimen.

Question 8

Interspecific variation

Answer 8

Individuals that differ in morphology because they belong to different species.

Question 9

Intraspecific variation

Answer 9

Individuals that belong to the same species but have different morphologies

Question 10

Sexual dimorphism

Answer 10

Males and females looking different from eachother

Question 11

Ontogenic variation

Answer 11

Ovarian ion visible between young and old individuals of the species (besides simple size differences)

Question 12

Individual variation

Answer 12

Normal variation that exists among individuals of the same species

Question 13

Taphonomic variation

Answer 13

Geologically caused variation due to plastic variation

Question 14

Biological species concept

Answer 14

Defines a species as a group of organisms that can successfully interbreed

Question 15

Population

Answer 15

Any grouping of organisms that live in the same geographic area and interbreed

Question 16

Morphological species concept

Answer 16

Defines a species as a group of organisms that share a certain degree of physical similarity

Question 17

Lumper

Answer 17

Palaeontologists who require more differences before they consider two species to be distinct

Question 18

Splitter

Answer 18

Palaeontologists who require fewer differences before they consider two species to be distinct

Question 19

Hesperonychus elizabethae

Answer 19

Very small dromaeosaurid dinosaur discovered in Alberta. Holotype resides at the u of a