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KSU Bio 198 Exam 6 Questions and
Correct Answers/ Latest Update / Already
Graded
Lichen
Ans: Fungus and a photosynthetic organism
How do fungi and alga in lichen benefit each other?
Ans: Fungi- Provide nutrients (CO2), minerals, and protection.
Algae- Provide food through photosynthesis
Why are lichens important in an ecosystem?
Ans: 1. Important for soil development
2. Pollution indirector
3. Makes litmus (pH indicator)
Algae
Ans: Plantlike protists
Where do most species of red and green algae live?
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Ans: Water
Why are algae important to humans?
Ans: They produce the majority of O2 in the world
What evidence suggests that plants and algae evolved from a common
ancestor.
Ans: 1. Cell walls are made of cellulose
2. Chloroplasts have chlorophyll A & B
Challenges for plants to live on land?
Ans: 1. Dry environment
2. Gravity
3. Dry fertilization
4. Children on dry land
What features of the terrestrial environment made it advantageous for
plants to invade land?
Ans: 1. Abundant sunlight
2. CO2 is more available & diffuses faster in air
3. At first no predators in land
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What adaptations in plants have allowed them to succeed on land?
Ans: 1. Alternation of generations
2. Sporangium where spores are formed
3. Gametangium that produces haploid cells
Bryophytes
Ans: A moss, liverwort, or hornwort; a nonvascular plant that
inhabits the land but lacks many of the terrestrial adaptations
of vascular plants.
When bryophytes evolve?
Ans: 450 million years ago
What is the main dispersal stage of bryophytes?
Ans: Haploid (spores)
What is the dominant stage in bryophytes?
Ans: gametophyte (haploid)
All rights reserved © 2025/ 2026 |
KSU Bio 198 Exam 6 Questions and
Correct Answers/ Latest Update / Already
Graded
Lichen
Ans: Fungus and a photosynthetic organism
How do fungi and alga in lichen benefit each other?
Ans: Fungi- Provide nutrients (CO2), minerals, and protection.
Algae- Provide food through photosynthesis
Why are lichens important in an ecosystem?
Ans: 1. Important for soil development
2. Pollution indirector
3. Makes litmus (pH indicator)
Algae
Ans: Plantlike protists
Where do most species of red and green algae live?
All rights reserved © 2025/ 2026 |
, Page |2
Ans: Water
Why are algae important to humans?
Ans: They produce the majority of O2 in the world
What evidence suggests that plants and algae evolved from a common
ancestor.
Ans: 1. Cell walls are made of cellulose
2. Chloroplasts have chlorophyll A & B
Challenges for plants to live on land?
Ans: 1. Dry environment
2. Gravity
3. Dry fertilization
4. Children on dry land
What features of the terrestrial environment made it advantageous for
plants to invade land?
Ans: 1. Abundant sunlight
2. CO2 is more available & diffuses faster in air
3. At first no predators in land
All rights reserved © 2025/ 2026 |
, Page |3
What adaptations in plants have allowed them to succeed on land?
Ans: 1. Alternation of generations
2. Sporangium where spores are formed
3. Gametangium that produces haploid cells
Bryophytes
Ans: A moss, liverwort, or hornwort; a nonvascular plant that
inhabits the land but lacks many of the terrestrial adaptations
of vascular plants.
When bryophytes evolve?
Ans: 450 million years ago
What is the main dispersal stage of bryophytes?
Ans: Haploid (spores)
What is the dominant stage in bryophytes?
Ans: gametophyte (haploid)
All rights reserved © 2025/ 2026 |
