First Test Of Eighth Grade

Question 0

How do you biologists group organisms?

Answer 0

They group of organisms based on similarities.

Question 1

What are the six things all living things have?

Answer 1

Cellular organization, composed of chemicals, energy use, growth and development, respond to the environment, reproduce.

Question 2

What is the definition of classification?

Answer 2

Classification is the process of grouping things based on their similarities.

Question 3

Why do biologists use classification?

Answer 3

Biologist use classification to organize living things into groups so that the organisms are easier to study.

Question 4

What is taxonomy?

Answer 4

Taxonomy is the scientific study of how organisms are classified.

Question 5

Why is taxonomy useful?

Answer 5

Taxonomy is useful because once an organism is classified, assigned to snows a lot of information about that organism.

Question 6

Who made a system of naming organisms?

Answer 6

In the 1730s the Swedish botanist Carolus Linnaeus devised system of naming organisms that is still used today.

Question 7

What is the system of naming organisms called?

Answer 7

It is called binomial nomenclature.

Question 8

What is a genus?

Answer 8

A genus is a classification grouping that contains similar, closely related organisms.

Question 9

What is a species?

Answer 9

A species is a group of similar organisms that can mate with each other and produce offspring and that can also me and reproduce.

Question 10

What are the eight levels of classification?

Answer 10

Domain, kingdom, phylum, class, order, family, genus, species.

Question 11

What is a domain?

Answer 11

A domain is the broadest level of organization.

Question 12

What is the taxonomic key?

Answer 12

The taxonomic key consist of a series of paired statements that describes the various physical characteristics of different organisms.

Question 13

What are the three domains?

Answer 13

The three domains are bacteria, Archaea, and you Eukarya.

Question 14

What are prokaryotes?

Answer 14

Prokaryotes are unicellular organisms whose cells lack a nucleus.

Question 15

What is a nucleus?

Answer 15

A nucleus is a dense area in a cell that contains nucleic acid, the chemical instructions that direct the cells activities.

Question 16

What is a protist?

Answer 16

A protist is any eukaryotic organism that cannot be classified as a fungus, plant, or animal. Because it’s members are so different from one another the protist kingdom is sometimes called the odds and ends kingdom.

Question 17

To which still means the only prokaryotes belong?

Answer 17

Prokaryotes to either the Archaea or bacteria domains but they must be unicellular

Question 18

What are three characteristics of protist can share with a plant?

Answer 18

Plants that are protists are autotrophic. They live in soil, and parts of trees, in freshwater, and in salt water. They are very important because they create a lot of oxygen and are the basis for the aquatic food chain.