Answers 2025-2026_MDCPS_2000315_Biology_1_B-CRUnit Test

Methods of Classification Answers

10 verified answers4 views

Free Preview

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

Free Preview

Which evidence did Carl Linnaeus use to classify organisms?

physical characteristics

evolutionary history

physical characteristics and evolutionary history

physical characteristics, genetics, and evolutionary history

Which is most likely to change with new discoveries and technologies?

classification of organisms

kingdom of an organism

order of the taxonomic levels

use of binomial nomenclature

Which is the best definition of a phylogenetic tree?

a table of classification that is based only on physical characteristics

eight levels of taxonomic categories that are used to classify organisms

a branching chart that depicts evolutionary relationships among organisms

organisms organized based on structure and genetic comparisons

Why are some of Carl Linnaeus’s classifications of organisms incorrect?

Linnaeus did not study the anatomy of organisms.

Linnaeus’s work accounted for evolution.

Linnaeus did not use structural comparisons.

Linnaeus primarily used physical characteristics.

Which identifies the main purpose of biological taxonomy?

classify organisms by using common names for easy identification of species by scientists

create phylogenetic trees that organize species based only on physical characteristics

use a systematic method to name, organize, and show relationships among species

create common names that can be applied to multiple organisms found in different regions

Why is it important to classify the millions of species on Earth?

to have common names that everyone can remember

to more easily sequence their genetic material

to devise scientific names that only scientists can learn

to organize them and speak about them accurately

The species that is known as a robin in England has a yellow breast, and another species that is known as a robin in the United States has a red breast. Which statement about common names does this fact best exemplify?

More than one common name may be used for the same species.

Common names differ among various locations.

Different species can share the same common name.

Common names do not always translate accurately from Latin to other languages.

Which taxonomic group includes kingdoms and all other levels of taxonomy?

phylum

domain

genus

species

Consider the phylogenetic tree.Which two organisms are most closely related, based on the tree above?

ray-finned fishes and sharks

rodents and primates

dinosaurs and crocodiles

dinosaurs and birds

Why is it important to classify the millions of species on Earth?

to have common names that everyone can remember

to more easily sequence their genetic material

to devise scientific names that only scientists can learn

to organize them and speak about them accurately

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.

Which evidence did Carl Linnaeus use to classify organisms?

physical characteristics

evolutionary history

physical characteristics and evolutionary history

physical characteristics, genetics, and evolutionary history

Consider the classification levels of a honey bee. EukaryaAnimaliaArthropodaInsectaHymenopteraApidaeApismelliferaTo which class do honey bees belong?

Arthropoda

Insecta

Hymenoptera

Apidae

Why do classification systems change over time?

Scientists find new evidence in their studies.

Scientists use old methods of classification.

Scientists repeat experiments and find no changes.

Scientists find similar evidence to previous work.