Quadrats Study guides, Revision notes & Summaries

Which group is not a population? correct answer: all four groups are populations How would you estimate the number of whales in a population? correct answer: mark and recapture What is a population? correct answer: a group of individuals of the same species living in the same area at the same time True or False? Sampling quadrats would be the better method for estimating the number of whales in a population. correct answer: false True or False? Mark and recapture would be the bet...

The atmosphere is changing because: correct answer: carbon is being added faster than it is removed exponential growth curve correct answer: j-shaped curve showing the rapid increase in an exponentially growing population There are 1000 rabbits in a population that grows 10% per month. How many rabbits would you have after 120 months? correct answer: General Formula (exponential growth--no limit) Pop=(population)(growth rate)^number of months At 0 months, start with 1000 rabbits. At...

AP Biology Ecology Multiple Choice Practice Test Complete Solutions 1. Which of the following is NOT true regarding factors that affect the dispersion of organisms in nature? A. Most environmental resources are randomly distributed. B. Biological conditions tend to be non-uniform. C. Dispersal of offspring is often limited or controlled by environmental factors. D. The development of societies in some populations controls distribution. E. Every species is adapted to specific en...

Abiotic Factors - Rainfall pH Temperature Humidity/lack thereof Presence/level of pollution Areas with high biodiversity (7) - - Large number of successful species - Relatively benign climate with more ecological niches - Presence of many species - Few specific adaptations to enviroment - Complex food web - Change in enviroment has a relatively small effect on the ecosystem as a whole -High biodiversity index (above 0.5) Areas with low biodiversity (7) - - Few successful number of sp...

Population - Answer Group of individuals from the same species that live in the same area at the same time Population density - Answer Number of individuals per unit area - Vary throughout the range What are the types of distribution of population density? [3] - Answer - Random - Clumped - Uniformed Random distribution - Answer Positions of individuals independent of each other Clumped distribution - Answer Result from patchy habitat or social organisms Uniform distribution - A...

This is a summary of every learning objective (5.1-5.21) for Topic 5, OWS, on the Edexcel Biology A (Salters-Nuffield) specification. I have arranged my notes answering each objective, and have given definitions, core practical information, and equations, based from the textbook. These notes include Core Practicals 10-13, including quadrats, the Hill reaction, and initial rates. I also explain topics regarding ecology and the ecosystem, photosynthesis, the Calvin cycle, the greenhouse effect...

Ecology - -The study of how organisms interact with one another and with their physical environment - Organism -> population -> community -> ecosystem -> biosphere - Binomial: scientific name Biotic Abiotic - - Biotic: living, or once living, factor in an ecosystem - Abiotic: non-living factor in an ecosystem Organisms Species Population - - Organisms: an individual living thing - Species: a group of similar organisms that can mate and produce fertile offspring - Populatio...

GCSE COMBINED SCIENCE: TRILOGY 8464/B/2H Biology Paper 2H Mark scheme June 2023 Version: 1.0 Final *236G8464/B/2H/MS* 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 examination. The standardisat...

BTEC Applied Science Unit 3 Exam 143 Questions with Answers What is a hypothesis? -CORRECT ANSWER An Idea that you can test using practical experiments What are the Key features of a good hypothesis? - CORRECT ANSWER A good Hypothesis must: Be able to be tested scientifically Relate one dependent variable to on independent variable What is a Null Hypothesis? - CORRECT ANSWER States that there is no relationship or causality, for example, no relation between the temperature and the r...

A-level BIOLOGY 7402/2 Paper 2 Mark scheme June 2021 Version: 1.0 Final *216a7402/2/MS* MARK SCHEME − A-LEVEL BIOLOGY − 7402/2 − JUNE 2021 Downloaded by: BetterAcademics | Distribution of this document is illegal Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevantquestions, by a panel based on subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate within and ...