Daphnia Study guides, Class notes & Summaries

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...

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.

Daphnia Heart rate - Practical 11.2

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...

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...

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/...

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...

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....

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