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BIOD101 / BIOD 101 Module 2:
(Latest Update 2025 / 2026) Essential Biology I with Lab | Questions & Answers | Grade A 100% Correct - Portage Learning
Question:
Bacteria that causes illness are called what?
Answer:
Pathogenic Bacteria
Question:
What are DECOMPOSERS?
Answer:
Organisms that break down dead and dying organic matter and releases vital elements into the environment.
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Question:
What are SYMBIOTIC RELATIONSHIPS?
Answer:
A relationship between two organisms in which one or both organisms benefit from the interaction; symbiotic relationships may be mutualistic, communalistic, or parasitic.
Question:
Describe a MUTUALISTIC symbiotic relationship, and give an example.
Answer:
Mutualism refers to a relationship where there is a mutual benefit to both organisms; an example is non-pathogenic E. Coli - this non-pathogenic bacteria protects its host from pathogenic bacteria, and in return it obtains adequate nutrients from its host.
Question:
Describe a COMMUNALISTIC symbiotic relationship, and give an example.
Answer:
Communalism occurs when only one of the organisms in the symbiotic relationship benefits while the other is unharmed or unaffected; an example is the bacteria that lives on the surface of human skin - the bacteria benefits by metabolizing oils and dead skin cells, and the human remains unharmed and unaffected.
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Question:
Describe a PARASITIC symbiotic relationship, and give an example.
Answer:
Parasitism occurs when the symbiont harms the host while receiving a benefit; an example is Strep A ('strep throat').
Question:
What are the four main kingdoms of eukaryotes?
Answer:
- Fungi
- Protista
- Plantae
- Animalia
Question:
What are some examples of FUNGI?
Answer:
Yeasts, molds, rusts, mildews, and mushrooms.
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