
Colonial Organisms and Their Functions

Interactive Video
•
Biology
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is one of the main advantages of unicellular organisms forming colonies?
Faster cell division
Increased individual cell size
Reduced energy consumption
Protection against predators
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do Aphanizomenon colonies protect themselves from being eaten by filter feeders?
By forming dense, visible blooms
By releasing toxins into the water
By developing a thicker exterior
By creating long grass-like structures
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of heterocysts in Nostoc colonies?
To protect against toxins
To reproduce
To fix nitrogen
To photosynthesize
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What material protects the cells in Pseudopediastrum colonies?
Silica scales
Sugar excretion
Sporopollenin
Gelatinous mass
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What unique feature do Synura colonies have that helps them move through water?
Flagella
Heterocysts
Gelatinous mass
Sporopollenin
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which volvocine algae colony is considered a stepping stone to multicellular life?
Gonium
Eudorina
Volvox
Pleodorina
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main function of somatic cells in Volvox colonies?
To photosynthesize
To reproduce
To move the colony
To fix nitrogen
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