AQA Biology A Level - Ecology Certification Review Exam Questions With Multiple Choices And Verified Answers.

Biodiversity - correct answer the range and variety of genes, species and habitats within a particular region Ecological niche - correct answer the precise way in which an organism fits into its environment. The totality of all factors that effect it Ecosystem - correct answer all the living and nonliving things in a particular area Community - correct answer all the living organisms in an ecosystem at a given time Habitat - correct answer the place where an organism normally lives Population - correct answer a group of individuals of the same species that occupy the same habitat at the same time Species - correct answer a group of similar organisms that can breed to produce fertile offspring Species diversity - correct answer the number of different species and the number of individuals of each species within any one community Standard deviation - correct answer a measure of the spread of data around the mean Significant difference - correct answer There is a less than 5% probability the differences in the results are due to chance Succession - correct answer the change in an ecosystem over time Gross Production - correct answer net production + respiration Genetic Diversity - correct answer genetic differences between individuals within a population Gene Pool - correct answer The total number of alleles in a particular population at a specific time Allopatric Speciation - correct answer speciation due to geographic isolation Sympatric speciation - correct answer speciation without geographic isolation, due to reproductive isolation Abiotic factor - correct answer physical or non-living Biotic factor - correct answer living