Name: Class: Date given: Date due in: Evolution 1. These two animals are the same species. Give two ways that they show variation. [2] 2. Give one cause of variation in a species. [1] 3. Match the keyword to its definition. [2] extinct variety of species that live on Earth endangered all members of a species have died out biodiversity at risk of species dying out 4. Variation within a species can lead to evolution by natural selection. Explain how. [6] Page 1 of 2 Heading from page 1 5. What is a gene bank? Tick all correct answers [1] storage for denim trousers storage of genes from different species storage of blood from animals 6. What is the purpose of a gene bank? Tick all correct answers [1] used to make new organisms of extinct species used to make new organisms of endangered species used to maintain biodiversity 7. How are genes stored? Tick all correct answers [1] plant seeds are collected and stored animal gametes are frozen and stored young plants are grown and then frozen animal blood samples are chilled and stored Learning Outcomes (tick if achieved) Q1, 2 I can describe variation and causes of variation. Q3 I understand what extinct and endangered mean. Q4 I can describe natural selection and evolution. Q5,6,7 I know what a gene bank is and what its purpose is. Page 2 of 2 Evolution Answers 1. These two animals are the same species. Give two ways that they show variation. [2] colour, height, leg length, reins, saddle etc. 2. Give one cause of variation in a species. [1] genetic or environmental 3. Match the keyword to its definition. [2] extinct variety of species that live on Earth endangered all members of a species have died out biodiversity at risk of species dying out 4. Variation within a species can lead to evolution by natural selection. Explain how. [6] max 6 from: variation creates different characteristic features some features are advantageous advantageous features improve survival surviving organisms reproduce advantageous features are inherited increase of advantageous features in population more members survive with advantageous feature increasing numbers of offspring with advantageous feature species changes over time 5. What is a gene bank? Tick all correct answers [1] storage of genes from different species 6. What is the purpose of a gene bank? Tick all correct answers [1] used to make new organisms of extinct species used to make new organisms of endangered species used to maintain biodiversity 7. How are genes stored? Tick all correct answers [1] plant seeds are collected and stored animal gametes are frozen and stored