KIP: Archaea, Bacteria, and Ecosystems

Multiple Choice

What is the significance of studying Archaea, Bacteria, and Ecosystems?

• Understanding the diversity of life forms

• Learning about disease-causing organisms

• Exploring the role of microorganisms in ecosystems

• All of the above

Multiple Choice

Archaebacteria are classified as ___ because they do not have a nucleus.

• prokaryotes
• eukaryotes

Multiple Choice

What are the characteristics of archaebacteria?

• They are multicellular and reproduce sexually.

• They are prokaryotes and reproduce asexually.

• They are eukaryotes and reproduce sexually.

• They are prokaryotes and reproduce sexually.

Multiple Choice

Which type of archaebacteria can live in very hot water?

• Halophiles

• Thermophiles

• Methanogens

• Cyanobacteria

Match

Match the following

• Halophile

• Thermophile

• Methanogens

Live in salty habitats & help clean up

Live in hot water & decompose waste

Live without oxygen & help digest fiber

• Live in salty habitats & help clean up

• Live in hot water & decompose waste

• Live without oxygen & help digest fiber

Dropdown

When whales die and sink to the ocean floor, their huge carcasses support hundreds of types of organisms, including archaebacteria. 

Archaebacteria are important decomposers in extreme conditions.



Methanogens are archaebacteria that reproduce​

Select answer

and lack a​

Select answer

in their cell. Methanogens help to​

Select answer

a whale carcass, cycling nutrients in the ecosystem.

Multiple Choice

What are the three basic structures of eubacteria?

• Curved, rod-shaped, round

• Flat, spiral, square

• Hexagonal, circular, triangular

• Linear, cubic, spherical

Categorize

Options (6)

Break down waste

Help animal digestion

Break down remains

Fix nitrogen to fertilize soil

Cause infection

Cause illness

Complete the table with positive and negative ways eubacteria are important to ecosystems.

Positive

Negative

Multiple Choice

EXIT TICKET:

One important role of both archaebacteria and eubacteria is

• causing illness and infections

• fixing nitrogen to fertilize soil

• cleaning up ocean pollution

• decomposing wastes and remains