AP Biology : AP Biology

Study concepts, example questions & explanations for AP Biology

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Example Questions

Example Question #1951 : Ap Biology

Which is not true about the theory of punctuated equilibrium?

Possible Answers:

Species are typically in a state of stasis

Times of change are slow and continuous 

Times of change are rapid and rare

It stands in contrast to gradualism 

Correct answer:

Times of change are slow and continuous 

Explanation:

Punctuated equilibrium is one theory within evolutionary biology that seeks to explain the rate of evolution over time. This theory describes most species being in a state of stasis, with little change occurring. When change does occur, however, it is rapid. The theory of punctuated equilibrium stands in opposition to the theory of gradualism and is supported by the fossil record.

Example Question #11 : Use The Taxonomic Classification System

What is true about the theory of gradualism?

Possible Answers:

All of these

It stands in opposition to the theory of punctuated equilibrium

Change is uniform

Change is slow and gradual

Correct answer:

All of these

Explanation:

Gradualism is a theory of evolutionary biology that stands in contrast to the theory of punctuated equilibrium. In this theory, change (or evolution) is slow, gradual, and uniform. Adaptation occurs over a long period of time and is observed in small changes. 

Example Question #12 : Use The Taxonomic Classification System

Which of the following best describes the difficulties associated with the study of phylogenetics?

Possible Answers:

Neither horizontal gene transfer nor hybridization

Hybridization

Horizontal gene transfer

Horizontal gene transfer and hybridization

Correct answer:

Horizontal gene transfer and hybridization

Explanation:

Phylogenetics has several difficulties that complicate the development of accurate phylogenetic trees. Relationships between organisms on a genetic level are incredibly complicated, making it difficult for scientist to create clean and precise phylogenetic trees. These difficulties include hybridization, horizontal gene transfer, and convergent evolution.

Example Question #11 : Use The Taxonomic Classification System

Fungi belong to the __________ of __________.

Possible Answers:

domain . . . bacteria

kingdom . . . eukarya

class . . . archaea

domain . . . eukarya

kingdom . . . bacteria

Correct answer:

domain . . . eukarya

Explanation:

There are 3 domains in which all organisms are classified - Eukarya, Bacteria, and Archaea. Fungi is the name of one the kingdom classifications. The order for the classification is as follows: domain, kingdom, phylum, class, order, family, genus, species. Therefore, Fungi falls under the Domain of Eukarya.

Example Question #1952 : Ap Biology

Which is not one of the three domains?

Possible Answers:

bacteria

eukarya

archaea

prokarya

Correct answer:

prokarya

Explanation:

Domain is the broadest taxonomic category, and includes bacteria, archaea, and eukarya; all living organisms can be classified into one of these three domains.

Example Question #1953 : Ap Biology

From most broad to specific, how are organisms classified?

Possible Answers:

Domain-> Kingdom-> Phylum-> Class-> Order-> Family-> Genus-> Species

Kingdom> Domain> Class> Phylum> Order-> Family-> Genus-> Species

Order> Kingdom-> Phylum-> Domain> Class> Genus> Family> Species

Domain-> Phylum> Kingdom> Class-> Order-> Family-> Genus-> Species

Correct answer:

Domain-> Kingdom-> Phylum-> Class-> Order-> Family-> Genus-> Species

Explanation:

There are eight taxonomic categories, with domain most inclusive and each subsequent category becoming more specific.

Example Question #1954 : Ap Biology

Which is a species?

Possible Answers:

Arthropoda

Protista

Eukarya

Felis catus

Correct answer:

Felis catus

Explanation:

Arthropoda is a phylum, eukarya is a domain, and protista is a kingdom. There are eight taxonomic categories (Domain-> Kingdom-> Phylum-> Class-> Order-> Family-> Genus-> Species) with domain being most inclusive and each subsequent category becoming more specific.

Example Question #1955 : Ap Biology

Which is not one of the kingdoms?

Possible Answers:

fungi

bacteria

protista

plantae

Correct answer:

bacteria

Explanation:

There are eight taxonomic categories (Domain-> Kingdom-> Phylum-> Class-> Order-> Family-> Genus-> Species) with domain being most inclusive and each subsequent category becoming more specific. Bacteria are not a kingdom; bacteria are one of the three domains. Kingdom includes fungi, prokaryotes, protista, plantae, and animalia.

Example Question #1956 : Ap Biology

Which is a characteristic unique to the domain eukarya?

Possible Answers:

No organelles

Cell walls contain peptidoglycan

No histones

Membrane bound organelles

Correct answer:

Membrane bound organelles

Explanation:

The three domains include bacteria, eukarya, and archaea. Eukarya contain membrane bound organelles, have histones (which are proteins in chromatin), and cell walls do not contain peptidoglycan.

Example Question #1957 : Ap Biology

Which is a characteristic of the kingdom animalia?

Possible Answers:

Heterotrophic

Autotrophic

Prokaryotic cells

Unicellular

Correct answer:

Heterotrophic

Explanation:

Organisms within the kingdom animalia have eukaryotic cells, are multicellular, and are heterotrophic (receives its nutrition through consuming other organisms). 

 

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