Unit 4.1 Diversity of life

Q: Define Species

Q: Define hybrids, hybridise & hybridisation

Q: Why is it that individuals of different species cannot interbreed to produce fertile offspring?

Q: What are problems hybrids usually have?

Q: Define hybrid vigour

Q: Give an example of hybridisation.

Q: Define taxonomy.

Q: Why is understanding & grouping organisms important?

Q: What were the 2 basic groups Aristotle classified, What did he recognize and what were the terms he first used?

Q: What is the difference between vertebrate and invertebrate?

Q: Define Linnaean classification

Q: Define morphology

Q: Define evolution & who was the first scientist to use the word?

Q: The geological time scale had been developed and divided into 3 pairs, name them.

Q: Define generation.

Q: What does it mean when species become more or less complex?

Q: Who was Charles Darwin and what led him to believe that species could change?

Q: Who was Alfred Russel Wallace & how did he find out the contribution to the understanding of evolution & biogeoraphy.

Q: Define artificial selection.

Q: What is cross-breeding & inbreeding?