Wsu biology 106 exam Study guides, Class notes & Summaries
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WSU Biology 106 Exam Questions AND CORRECT DETAILED ANSWERS
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WSU Biology 106 Exam Questions 
AND CORRECT DETAILED 
ANSWERS 
Which of the follow statements concerning the is NOT correct? 
a) in the most-recent 550 million years Earth has experienced 
five mass-extinction events 
b) approximately 250 million years ago all of the continents were coalesced in a 
single, giant, super continent 
c) the first living organisms were Prokaryotes 
d) oxygen started accumulating in Earth's atmosphere with the invasion of land by 
plants approximately 400 million ye...
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WSU Biology 106 Exam 2 >> Questions and Answers Graded A++
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WSU Biology 106 Exam 2 >> Questions and Answers Graded A++ 
 
 
 
 
 
 
Fungi	heterotrophs that feed by absorption 
Heterotrophs	absorb nutrients from outside the body 
Roles of fungi	decomposers, parasites, mutualists (symbiotic and microrizzae), early land colonizers 
What do fungi use to break complex molecules?	Enzymes 
Chitin	made of cellulose, make up the cell walls of fungi 
Hyphae	continuous strands above/below ground, generate spores, colonizes soil 
Fungi life cycle	 
Mycellum	a ...
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WSU Biology 106 Exam 3 Questions Marking Scheme
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WSU Biology 106 Exam 3 
Questions Marking 
Scheme 
Spongocoel - ANSWER- the large central cavity of sponges. 
water enters the spongocoel through tiny pores called ostia and it exits through the 
large opening called the osculum. 
spongocoel is lined with choanocytes which help to create a current in the water. 
Spicule - ANSWER- structural elements found in most sponges. They provide structural 
support and deter predators. 
Large ones are called megascleres while microscopic ones are calle...
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WSU Biology 106 Exam 3 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES |ALREADY GRADED A+
- Exam (elaborations) • 14 pages • 2023
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WSU Biology 106 Exam 3 
QUESTIONS AND CORRECT 
DETAILED ANSWERS WITH 
RATIONALES |ALREADY GRADED A+ 
Arthropods - ANSWER- Phyla with greatest amount of diversity with 85% of animal spp 
700 million years ago - ANSWER- When the first animals originated 
Porifera (sponges) - ANSWER- Phyla with no tissues, muscles, nerves, or specialized 
organs 
Choanocytes - ANSWER- Flow of water and food acquisition in sponges 
Amoebocytes - ANSWER- Found in sponges, these cells are mobile and perform 
numer...
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WSU Biology 106 Exam 1 With 100% Correct Answers 2023
- Exam (elaborations) • 7 pages • 2023
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WSU Biology 106 Exam 1 With 100% Correct Answers 2023
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WSU Biology 106 Exam 3 Questions Marking Scheme
- Exam (elaborations) • 18 pages • 2023
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WSU Biology 106 Exam 3 Questions Marking Scheme 
 
Spongocoel - ANSWER- the large central cavity of sponges. 
 
water enters the spongocoel through tiny pores called ostia and it exits through the large opening called the osculum. 
 
spongocoel is lined with choanocytes which help to create a current in the water. 
 
Spicule - ANSWER- structural elements found in most sponges. They provide structural support and deter predators. 
 
Large ones are called megascleres while microscopic ones are ca...
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WSU Biology 106 Exam | 2 Latest Versions | Questions and Answers | (Professor Verified)
- Exam (elaborations) • 34 pages • 2023
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Which of the follow statements concerning the is NOT correct? 
a) in the most-recent 550 million years Earth has experienced 
five mass-extinction events 
b) approximately 250 million years ago all of the continents were coalesced in a 
single, giant, super continent 
c) the first living organisms were Prokaryotes 
d) oxygen started accumulating in Earth's atmosphere with the invasion of land by 
plants approximately 400 million years ago ----CORRECT ANSWER------d) oxygen 
started accumulating ...
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WSU Biology 106 Exam 2 With 100% Correct Answers 2023
- Exam (elaborations) • 7 pages • 2023
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WSU Biology 106 Exam 2 With 100% Correct Answers 2023
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WSU Biology 106 Exam 3 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES |ALREADY GRADED A+
- Exam (elaborations) • 14 pages • 2023
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- $12.99
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WSU Biology 106 Exam 3 
QUESTIONS AND CORRECT 
DETAILED ANSWERS WITH 
RATIONALES |ALREADY GRADED A+ 
Arthropods - ANSWER- Phyla with greatest amount of diversity with 85% of animal spp 
700 million years ago - ANSWER- When the first animals originated 
Porifera (sponges) - ANSWER- Phyla with no tissues, muscles, nerves, or specialized 
organs 
Choanocytes - ANSWER- Flow of water and food acquisition in sponges 
Amoebocytes - ANSWER- Found in sponges, these cells are mobile and perform 
numer...
-
WSU Biology 106 exam 4QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES
- Exam (elaborations) • 10 pages • 2023
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WSU Biology 106 exam 4QUESTIONS AND 
CORRECT DETAILED ANSWERS WITH 
RATIONALES 
Organisms that rely solely on surface - ANSWER- colonial choanaoflagellate 
Other small organisms that use their surfaces only - ANSWER- bacteria, microalgae, 
yeast 
How can you be bigger than 1mm? - ANSWER- adaptations to enhance gas exchange: 
circulatory systems and increase surface area 
Gas exchange structures - ANSWER- Surface only (less than 1mm) 
Gastrovascular cavity (hydra, jellyfish, flatworms) have ...
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