When does extinction occur among organisms occur?
A. when their last member dies C. when the earth become hot
B. when all organism migrate D. when their habitat has broken
A. when their last member dies C. when the earth become hot
B. when all organism migrate D. when their habitat has broken
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Answer:
A. when their last member dies
Answer:
D. when their habitat has broken
Explanation:
Extinction occurs when species are diminished because of environmental forces (habitat fragmentation, global change, natural disaster, overexploitation of species for human use) or because of evolutionary changes in their members (genetic inbreeding, poor reproduction, decline in population numbers).
Destruction of Habitat – It is currently the biggest cause of current extinctions. Deforestation has killed off more species than we can count. Whole ecosystems live in our forests.