Biotechnology & Evolution

Which of these statements about phylogenetic trees is a true statement?

• The taxa in these trees is implied to have come from a common ancestor.

• It is a branched tree of inferred genetic relationships among a single biological species.

• These trees show no order of appearance of the organism in history in terms of chronological order.

• These trees always represent the species’ evolutionary history in exact descriptions and specifications.

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Which statement is true?

• All fungi are multicellular heterotrophs

• All fungi are single-celled heterotrophs.

• All animals are multicellular heterotrophs

• All animals are single-celled heterotrophs.

Which best describes the grouping of organisms based on their common descent?

• evolutionary classification

• traditional classification

• binomial nomenclature

• derived characteristics

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Which is the best reason for why we modify the classification of organisms?

• new ideas

• the history of classification

• newly discovered evolutionary relationships

• the changing nature of binomial nomenclature

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What do antibiotics, pesticides, bacteria, and viruses all have in common?

• They all initiate apoptosis in target cells.

• They all cause mutations in gamete DNA

• They all delay immune responses in organisms.

• They all have the ability to influence natural selection.

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Diversity among members of a species is important because diversity

• increases the chances of survival under changing conditions.

• ensures the variety of reproductive methods for a species.

• increases the available ecosystem resources.

• ensures high levels of competition.

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Which set includes kingdoms that contain only heterotrophs?

• Protista, Fungi

• Animalia, Fungi

• Plantae, Fungi

• Eubacteria, Animalia

In which of the following taxonomic groups would organisms have the least number of similarities?

• Kingdom

• class

• phylum

• family

How have most species living today been able to survive changes in their environment and successfully reproduce?

• interbreeding

• natural selectoin

• asexual reproduction

• acquired tastes

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Which cellular organelle is thought to have evolved from a prokaryote that was able to use oxygen?

• chloroplasts

• golgi bodies

• mitochondria

• nucleus

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