Food webs - Study guides, Revision notes & Summaries
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NRM 1401 Exam 3 Questions With All Correct Answers!!
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What is an ecosystem? -Answer- A community of living organisms and their environment. 
What is ecosystem ecology? -Answer- The study of how energy and nutrients flow through 
ecosystems. 
What is disturbance? -Answer- An event that disrupts an ecosystem. 
What is an ecosystem engineer? -Answer- A species that modifies its environment. 
What is an autotroph? -Answer- An organism that produces its own food. 
What is a heterotroph? -Answer- An organism that obtains food by consuming other organisms...
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NST1501 Assignment 3 (ANSWERS) 2024 - DISTINCTION GUARANTEED
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Well-structured NST1501 Assignment 3 (ANSWERS) 2024 - DISTINCTION GUARANTEED. (DETAILED ANSWERS - DISTINCTION GUARANTEED!)..... QUESTION 1 
1.1 
Define the following terms: 
1.1.1 
Solvent 
1.1.2 
Matter (4) 
1.2 Give an example of a heterogenous mixture. (2) 
1.3 Identify 2 different ways of separating homogenous mixtures (4) 
1.4 State the three different states of matter. (3) 
1.5 Identify the process: 
1.5.1 Change of state from liquid to solid 
1.5.2 Change of state from gas to liquid 
1.5...
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BIOS 242 Exam 2 (2023/2024) Rated A+
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BIOS 242 Exam 2 (2023/2024) Rated A+ Organic Nutrient An organism that contains carbon and hydrogen 
Inorganic Nutrient An organism that does not contan carbon and hydrogen 
Phototroph An organism that gains energy from light through photosynthesis 
Heterotroph An organism that must obtain carbon in an organic form - they are dependent on other life forms 
Chemotroph An organism that gains energy from chemical compounds - this means they eat things. Harvesting energy from the things they eat. 
A...
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BIOL 1902 Final Exam Study Questions and Answers with Verified Solutions Top Graded 2024
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What adaptation do mammals have for hearing? - Very large ears 
- Foxes and Wolves 
 
What adaptations do Owls have for hearing? (5 things) - Owls use their face 
- Called Facial Disks 
 
Hidden Ears 
- inside skull 
 
Short Bills 
- down curved bills to prevent interference with sigh and hearing 
 
Asymmetrical Ear Canals 
- gives horizontal separation which allows owl to find prey more precisely 
- Called Auditory Crosshairs!! 
 
Low wing loading 
- large wings with small body 
- wing feathers...
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Contemporary Issues in Biology Final ~ TCU, Sawey Exam Questions and Answers
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Contemporary Issues in Biology Final ~ TCU, 
Sawey Exam Questions and Answers 
how long have homo-sapiens been on earth - Answer- thought to be 200,000 years, 
starting in ethiopia 
mutation - Answer- change in nucleotide in the base of DNA; not all harmful; passed 
down in generations of that descent 
when did humans establish themselves worldwide - Answer- 12,000 years ago; before 
humans and agriculture coincided 
how did humans live before agriculture - Answer- used tools (needles, spears, c...
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EEMB 142A Midterm 1 Updated 2024/2025 Actual Questions and answers with complete solutions
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? Rule the world - Phytoplankton! 
- Fix lots of CO2, produce 90% of the Earth's O2 and help create clouds 
- Limited by: P, N, silica (diatoms), iron, trace elements 
- Could harness phytoplankton to control greenhouse gases (consume CO2 when fixing C - phytoplankton 
is iron limited; experiment: seed ocean with iron to create phytoplankton blooms to sequester (take out 
of the atmosphere and bring it to depths) carbon - SOIREE - Southern Ocean Iron Release Experiment 
- Large phytoplankton bl...
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BIOS 242 Exam 2 Questions and Answers with complete
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Organic Nutrient - Answer-An organism that contains carbon and hydrogen 
Inorganic Nutrient - Answer-An organism that does not contan carbon and hydrogen 
Phototroph - Answer-An organism that gains energy from light through photosynthesis 
Heterotroph - Answer-An organism that must obtain carbon in an organic form - they are dependent 
on other life forms 
Chemotroph - Answer-An organism that gains energy from chemical compounds - this means they 
eat things. Harvesting energy from the things th...
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Aptive Practice Test 1 Questions and Answers Graded A+
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Aptive Practice Test 1 Questions and 
 
Answers Graded A+ 
 
In what location in the interior of a residence would flea larvae most likely be found? In the 
carpet 
 
Which of the following weather conditions is highly conductive to flea development? Warm 
and Humid 
 
Which of the following residual insecticide application methods provides the quickest 
knockdown for the control of fleas in the lawn area? Power Spray 
 
Preparing a house for chemical treatment of which of the following pests in...
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Contemporary Issues in Biology Final ~ TCU, Sawey Exam Questions and Answers
- Exam (elaborations) • 20 pages • 2024
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Contemporary Issues in Biology Final ~ TCU, 
Sawey Exam Questions and Answers 
how long have homo-sapiens been on earth - Answer- thought to be 200,000 years, 
starting in ethiopia 
mutation - Answer- change in nucleotide in the base of DNA; not all harmful; passed 
down in generations of that descent 
when did humans establish themselves worldwide - Answer- 12,000 years ago; before 
humans and agriculture coincided 
how did humans live before agriculture - Answer- used tools (needles, spears, c...
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Contemporary Issues In Biology Exam 4 (taryn_weltzin) Exam Questions and Answers
- Exam (elaborations) • 11 pages • 2024
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Contemporary Issues In Biology Exam 4 (taryn_weltzin) 
Exam Questions and Answers 
Natural Selection - Answer- environment determines which organisms will survive and 
reproduce 
Fruit Flies and Humans - Answer- 15,000 similar genes - cellular/molecular levels our 
genetic code is indistinguishable 
Hunter-Gatherers (Homosapiens) - Answer- lacked agricultural technology - lived in 
small groups instead of large populations 
North American Food Resources - Answer- everything except for seafood is...
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