Unit 6 Review (3rd,4th,5th)

Two bodily structures, found in different species, have different internal bone structures but serve a similar purpose in each organism. This is most likely describing

• homologous structures

• analogous structures

• vestigial structures

• adaptive radiation

9. Individuals that are well adapted to their environment will survive and produce

• more offspring

• fewer offspring

• no offspring

• the same number of offspring

Early during development, organisms as diverse as a human, a mouse, and a bat can appear indistinguishable. All of their embryos look nearly identical.

• they share a common ancestry

• they have different genetic codes

• they develop in similar environments

• they have similar dietary needs

Ostriches have wings, but do not fly. Humans have an appendix with no apparent function. Whales contain bones for rear legs. Each of these are examples of

• vestigial structures

• functional structures

• evolutionary advancements

• adaptive features

Fossil evidence shows that structures considered vestigial in living organisms

• were functional in their ancestors

• are completely useless

• evolved independently

• are unique to each species

13. Which pattern of evolution results in one species splitting into many over time?

• Convergent evolution

• Divergent evolution

• Parallel evolution

• Co-evolution

Natural selection results in change over time by acting on traits that are

• inherited

• acquired

• random

• learned

23. Which of the following sequences shows the correct hierarchy of classification, going from broadest to most specific?

• Kingdom, Phylum, Class, Order, Family, Genus, Species

• Species, Genus, Family, Order, Class, Phylum, Kingdom

• Phylum, Kingdom, Class, Order, Family, Genus, Species

• Order, Class, Phylum, Kingdom, Family, Genus, Species

22. Which of the following statements about phylogenetic trees is not true?

• Phylogenetic trees show the evolutionary relationships between different species.

• The length of the branches in a phylogenetic tree always represents time.

• Phylogenetic trees can be rooted or unrooted.

• Phylogenetic trees are hypotheses about the evolutionary history of species.

A population of bacteria is treated with hand sanitizer. Because of genetic variation in the population, what is a possible outcome?

• All bacteria are killed.

• Some bacteria survive due to resistance.

• Bacteria multiply faster.

• Bacteria change color.