Daphnia Study guides, Revision notes & Summaries
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Biology Edexcel Practicals A Level Questions With Complete Solutions
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Biology Edexcel Practicals A Level Questions With Complete Solutions 
 
1. Investigate the effect of caffeine on heart rate of Daphnia - Topic 1 
Daphnia of same species and volume 
Placed on microscopic tray in pond water in bits of cotton and allowed to acclimatise for 5 minutes 
Then HR counted using tally marks of a sheet of paper for 15 seconds, x4 to give hr/min 
repeated with unknown conc. of caffeine (blind) 
0.0% and distilled water, 0.1% and 0.5% 
Repeat with each daphnia and with othe...
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A level Biology Edexcel SNAB 12 A* Core practicals
- Summary • 33 pages • 2021
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12 core practicals from an A* student, which received a pass on the practical endorsement requirement of the A level Edexcel SNAB biology course. Each core practical is detailed and comprehensive including: (i) apparatus table with purpose and safety of equipment listed, (ii) method (iii) results (iv) conclusion (v) evaluation + safety precautions (vi) tables and graph using spreadsheet software PLUS background preliminary research where necessary.
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Daphnia Heart rate - Practical 11.2
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Daphnia Heart rate - Practical 11.2
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Biology Lab Midterm Exam Correct!!!!
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scientific method - ANSWER careful observation of phenomenon in the world, ask critical questions and develop a hypothesis or educated guess, test the hypothesis to validate or invalidate it 
 
parts of a microscope - ANSWER eyepiece, high power objective, medium power objective, low power objective, specimen holder, stage, power switch, brightness control dial, longitudinal stage motion, lateral stage motion, aperture diaphragm lever, condenser, lamp, fine focus, coarse focus 
 
carrying the mi...
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AQA Biology 2022-2023 Paper 2 Higher Tier Mark Scheme
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GCSE 
BIOLOGY 
8461/2H 
Paper 2 Higher Tier 
Mark scheme 
 
Version: 1.0 Final 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate in and is the scheme which was used by them in this examinat...
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AQA GCSE BIOLOGY Higher Tier Paper 2H 2019.
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Please write clearly in block capitals. 
Centre number Candidate number 
Surname 
Forename(s) 
Candidate signature 
GCSE 
BIOLOGY 
Higher Tier Paper 2H 
H 
2 
*02* 
IB/M/Jun19/8461/2H 
Do not write 
outside the Answer all box questions in the spaces provided. 
0 1 Figure 1 shows a food chain in a pond. 
Figure 1 
0 1 . 1 Which term describes the Daphnia in this food chain? 
[1 mark] 
Tick () one box. 
Apex predator 
Primary consumer 
Producer 
Secondary consumer 
3 
*03* 
Turn over ► 
IB/...
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PCB FINAL EXAM REVIEW Questions With Correct Answers
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PCB FINAL EXAM REVIEW 
 
 
 
 
 
Q1 Which of the following is an example of an abiotic factor that can affect an organism? - ANS water 
 
Q1 Which of these is closets to the definition of ecology that was discussed for this class) - ANS Study of interactions that determine the distribution and abundances of organisms. 
 
Q1 "A population is a group of organisms occupying a particular space at a particular time." 
 
What is missing from this definition of population? - ANS the gr...
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2 PAGS Available for AQA Chemistry A Level and OCR A Biology A Level
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AQA AS CHEM - PAG 6, TEST FOR ORGANIC FUNCTIONAL GROUPS
OCR A BIOLOGY - PAG 11, DAPHNIA PAG
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BTEC Questions and Answers 100% unit 5 {Biology}
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BTEC Questions and Answers 100% unit 5 {Biology} 
Artery 
A blood vessel with a thick wall made from smooth muscle, elastic fibres and lined with a smooth layer of endothelial cells. The lumen of this vessel is also very small. This allows the vessel to withstand the high pressure which is necessary to pump blood throughout the body. It can also change the size of the lumen to control blood flow. 
 
 
 
Vein 
A blood vessel with a thin wall, consisting of little smooth muscle and elastic fibres....
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BIO 130 - QUIZZES QUESTIONS AND ANSWERS.
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BIO 130 - QUIZZES QUESTIONS AND ANSWERS. / BIO 130 - QUIZZES QUESTIONS AND ANSWERS. 
Nutrient Pollution Lab Quiz 
 Question 1 
2 out of 2 points 
Exercise 1 "Starting Up," question 7.3: Based on your sampling, what do Trout in the lake eat? 
Also refer to the following question (#8) in Starting Up for a hint. 
Selected Answer: 
Bosmina & Daphnia 
Correct Answer: 
Bosmina & Daphnia