BIOL DC 1309: Unit 12 Diversity of Life

What is a phylogeny a description of?

• DNA

• mutations

• evolutionary history

• organisms on Earth

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

What do scientists in the field of systematics accomplish?

• discover new fossil sites

• organize and classify organisms

• name new species

• communicate between field biologists

Tags

NGSS.MS-LS4-2

Which statement about the taxonomic classification system is correct?

• There are more domains than kingdoms

• Kingdoms are the top category of classification.

• A phylum may be represented in more than one kingdom.

• Species are the most specific category of classification.

Which best describes the relationship between chimpanzees and humans?

• chimpanzees evolved from humans

• humans evolved from chimpanzees

• chimpanzees and humans evolved from a common ancestor

• chimpanzees and humans belong to the same species

Tags

NGSS.MS-LS4-2

Which best describes a branch point in a phylogenetic tree?

• a hypothesis

• new lineage

• hybridization

• a mating

Tags

NGSS.MS-LS4-2

Which statement about analogies is correct?

• They occur only as errors.

• They are synonymous with homologous traits.

• They are derived by response to similar environmental pressures.

• They are a form of mutation.

Tags

NGSS.MS-LS4-2

Which statement about analogies is correct?

• shared derived traits

• shared ancestral traits

• analogous traits

• parsimonious traits

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

What is true about organisms that are a part of the same clade?

• They all share the same basic characteristics.

• They evolved from a shared ancestor.

• They all are on the same tree.

• They have identical phylogenies.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

Which assumption of cladistics is stated incorrectly?

• Living things are related by descent from a common ancestor.

• Speciation can produce one, two, or three new species.

• Traits change from one state to another.

• The polarity of a character state change can be determined.

Tags

NGSS.MS-LS4-2

A monophyletic group is a ________.

• phylogenetic tree

• shared derived trait

• character state

• clade