Topic 10: Experience 2 Quiz

A scientist is studying various organisms in the rainforest. The scientist collects one species and takes it back to the lab for further studies. The scientist finds that DNA floats freely in the species, and it lacks a nucleus. It was also found in an environment that was approximately 100 degrees Celsius.

• Eubacteria, because it is a prokaryote that does not live in extreme environments

• Archaea, because it is a eukaryote that does not live in extreme environments

• Eubacteria, because it is a eukaryote that lives in an extreme environment

• Archaea, because it is a prokaryote that lives in an extreme environment

Tags

NGSS.MS-LS1-5

In which kingdom is this organism likely categorized?

• Eubacteria, because it is a prokaryote

• Archaea, because it is a eukaryote

• Eubacteria, because it has many cells

• Archaea, because it has a nucleus

Tags

NGSS.MS-LS1-1

Which of the following is true regarding the importance of a kingdom to its ecosystem?

• The Eubacteria kingdom is important because all organisms in this kingdom are producers.

• The Archaea kingdom is important because it contains multicellular organisms that provide food for other kingdoms.

• The Eubacteria kingdom is important because it contains multicellular organisms that eat other organisms.

• The Archaea kingdom is important because it contains some species that break down wastes in their ecosystem.

Read each of the descriptions of a species from a particular kingdom. Which descriptions likely describe Archaebacteria? Select TWO answers.

• Usually producers in extreme environments such as low-oxygen or high-temperature

• Unicellular organisms that are not found in very extreme environments

• Have a cell wall that retains its shape when the environment changes

• Some help to produce methane used for decomposition

• Help to fix nitrogen and fertilize the soil

What are two examples of ways Archaebacteria are important in ecosystems?

• They help in nitrogen fixation and decomposition.

• They cause diseases in humans and animals.

• They produce oxygen through photosynthesis.

• They are used in making bread and cheese.

Archaea are distinct from bacteria because they often live in (a)   environments.

• temperate

• extreme
• aquatic

• forest

Which of the following is a characteristic of the domain Bacteria?

• Presence of a nucleus

• Ability to survive in extreme environments

• Single-celled organisms without a nucleus

• Multicellular organisms