Question 1

Which of the following pairs would be classified as prokaryotes?

Accepted Answer

Bacteria and Archaea are both prokaryotes, meaning they are unicellular organisms lacking a nucleus and other membrane-bound organelles. Animalia, Plantae, and Fungi are all eukaryotes, meaning they have a nucleus and other membrane-bound organelles.

Question 2

Shitake mushrooms are decomposers that break down biological molecules from dead organisms.These organisms belong to the ____ kingdom.

Accepted Answer

Shitake mushrooms are a type of fungus, which belongs to the Fungi kingdom.

Question 3

A group of similar species that share the most recent common ancestry is a(n) ____.

Accepted Answer

A group of similar species that share the most recent common ancestor is a genus. A kingdom is a taxonomic group that includes a variety of organisms, while a class is a taxonomic group that includes multiple orders. An order is a taxonomic group that includes multiple families, and a species is a specific type of organism.

Question 4

A student encounters an organism that resembles a plant and whose cells contain a nucleus.The organism is most likely classified as a(n) ____.

Accepted Answer

The presence of a nucleus in the cells indicates that the organism has a eukaryotic cell structure. Additionally, the fact that it resembles a plant suggests that it may belong to the Plantae kingdom within the Domain Eukarya. Bacteria and Archaea are both prokaryotic, lacking a nucleus. Animalia refers specifically to animals, while Amoeba is a genus of unicellular eukaryotic organisms.

Question 5

This kingdom includes the algae that are used to make sushi rolls.

Accepted Answer

The kingdom "Protist" includes various types of unicellular and multicellular organisms that do not fit into the other kingdoms. Algae, including the ones used to make sushi rolls, are examples of protists.

Question 6

A researcher in a lab finds a microscopic organism that has no nucleus, but has distinctive structural molecules and mechanisms of photosynthesis.The organisms are abundant in virtually every habitat on Earth.The researcher has identified an organism belonging to the domain ____.

Accepted Answer

The presence of distinctive structural molecules and mechanisms of photosynthesis, combined with the absence of a nucleus, indicates that the organism belongs to the domain Bacteria. This domain includes prokaryotic organisms that lack a nucleus and have a diverse range of metabolic pathways, including various forms of photosynthesis.

Question 7

The group that is the most inclusive and has recently been added to the classification scheme is ____.

Accepted Answer

The domain is the most inclusive group in the classification scheme and was added to the system more recently than the others.

Question 8

The pages of your textbook consist mainly of material made by multicellular, photosynthetic organisms that function as producers in ecosystems.These organisms belong to the kingdom ____.

Accepted Answer

The organisms being described are multicellular, photosynthetic and function as producers, all characteristics of plants. Therefore, they belong to the kingdom Plantae.

Question 9

The observations you make and experimental data you collect in your biology laboratory class are examples of:

Accepted Answer

The observations and data collected in a biology laboratory class are examples of biological research, as they involve the systematic study and investigation of biological phenomena.

Question 10

A randomly selected group of organisms from a family would show more genetic and anatomical variability than a similar group randomly picked from a _____.

Accepted Answer

A genus is a more specific taxonomic category than a family, meaning organisms within a genus are more closely related and thus show less genetic and anatomical variability compared to those in a family.

Question 11

Use the figure above for the following question(s).
-In the illustration, which group is the least inclusive?

Accepted Answer

The answer of  Use the figure above for the...

Question 12

Use the figure above for the following question(s).
-Which of the following represents a kingdom?

Accepted Answer

Animalia is a kingdom that includes all animals.

Question 13

A cell that is observed under the microscope is found to have its DNA enclosed in a nucleus, and has other specialized internal compartments.The cell is a(n) ____.

Accepted Answer

This cell has a nucleus and specialized internal compartments, which are characteristics of eukaryotic cells. Prokaryotes, such as bacteria, do not have a nucleus or other internal compartments. E. coli and P. aureus are both types of bacteria, so they cannot be the correct answer.

Question 14

Scientific names

Accepted Answer

Scientific names are written in italics with the genus capitalized and the species in lowercase.

Question 15

The most fundamental grouping in the classification of living organisms is the _____.

Accepted Answer

Species is the most fundamental grouping in the classification of living organisms. It refers to a group of organisms that share common characteristics and can interbreed to produce viable offspring. All other taxonomic categories (such as genus, family, order, and class) are based on the grouping of species with similar characteristics.

Question 16

Cats, dogs, and fish are consumers that have the ability to move actively from one place to another.These organisms belong to the ____ kingdom.

Accepted Answer

Cats, dogs, and fish are all animals and thus belong to the Animalia kingdom. Plants (A), fungi (B), and protists (D) are not capable of active movement. Bacteria (E) are not classified within the Animalia kingdom.

Question 17

A researcher in a lab finds a microscopic organism that is a producer.The organisms are found in extreme environments (i.e., hot springs).The researcher has identified an organism belonging to the domain ____.

Accepted Answer

Extreme environments such as hot springs are a preferred habitat for Archaea, one of the domains of life. Bacteria are also producers, but this question specifically mentions extreme environments which are usually associated with Archaea. Eukarya and Animalia are not producers, and Amoeba is a member of the domain Eukarya but not specifically associated with extreme environments.

Question 18

The scientific name of an organism is composed of two names.The first part identifies the ____ while the second part designates the ____.

Accepted Answer

The first part of the scientific name is the genus, which is a group of closely related species. The second part of the scientific name is the species, which is the unique identifier for a specific organism within that genus.

Question 19

Use the figure above for the following question(s).
-In the illustration, which group is the most inclusive group?

Accepted Answer

Eukarya is the most inclusive group as it includes all organisms with eukaryotic cells, including plants, animals, fungi, and protists.

Question 20

A group of organisms in which the individuals are so closely related in structure, biochemistry, and behavior that they can successfully interbreed is a(n) ____.

Accepted Answer

A species is the only level of classification that includes organisms that can interbreed and produce viable offspring. The other levels of classification, such as kingdom, class, order, and genus, are based on physical and genetic similarities but do not necessarily indicate the ability to interbreed.

Quiz 1: Introduction to Biological Concepts and Research