LoE - Speciation Word Scramble
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Question | Answer |
What is a mutation? | A random change to DNA bases |
Mutations can either be advantageous, disadvantageous or.... | Neutral |
What is an example of an advantageous mutation? | Peppered moth turning into a black moth for better camouflage |
What is a mutagenic agent? | Something that increases the frequency of a mutation occuring |
Name 2 examples of mutagenic agents. | X-rays & UV radiation |
Desert rat burrows into the sand when temperatures are too high - structural or behavioural adaptation? | Behavioural |
Cactus has sharp spines instead of leaves to reduce water loss - structural or behavioural adaptation? | Structural |
What process describes how the best suited organisms are able to survive and pass on their genes? | Natural selection |
Define a species. | Organisms that can interbreed to produce fertile offspring |
What process leads to a new species being made? | Speciation |
What splits the initial population into 2 sub-populations at the beginning of speciation? | Isolating mechanism |
Give 2 examples of a geographical isolating mechanism. | River & mountain |
Created by:
StNiniansHS