Unit Test — Unit test Answers

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When a plant grows as mediated by growth hormones, which main plant organs are at work?

meristem and roots

stems and leaves

roots and stem

leaves and roots

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What is binomial nomenclature?

a two word system for naming organisms by using the genus and species

a two word system for naming organisms by using the family and genus

a two word system for naming organisms by using the order and family

a two word system for naming organisms by using the domain and species

Why is taxonomy important?

Taxonomy allows scientists to analyze DNA and RNA sequences.

Taxonomy allows a better understanding of relationships among species.

Taxonomy allows the manipulation of genes for medical purposes.

Taxonomy allows scientists to use both common names and domains of life.

A scientist wants to study the interactions of different birds in the southern part of a desert. What should the scientist do first?

Identify local names for each bird species.

Determine what foods each bird species eats.

Identify each bird species by using a dichotomous key.

Determine each bird species' migration pattern.

Which type of evidence is least likely to result in changes to a phylogenetic tree?

DNA sequencing

fossil record

discovery of new species

physical characteristics

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