Biodiversity & Conservation

Why do the populations of invasive species grow so quickly? 

• Invasive Species are native to an area. 
• Invasive species are prey to many animals.
• Invasive species have no predators.
• Invasive species keep the ecosystems in equilibrium.

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What is an invasive species?

• A native (naturally found) species which are added to an area.

• A non-native (not naturally found) species added to an area.

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What is the main cause for species invading?

• Air Pollution 
• Wanting to be adventerous
• Human Means 
• Themselves

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____________ is the variety of life across all levels of biological organization.

• Species richness

• Ecosystem dynamics

• Biodiversity

• Ecological niche

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The most serious action that has threatened the survival of any species has been ____________ _______________.

• Over hunting

• Over harvesting

• Prey reduction

• Habitat loss

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To monitor threatened and endangered species, the IUCN maintains a _______________ _________________ that continually updates species that are at high risk of extinction.

• Endangered species list

• Plant index

• Red List

• Biological hotspot

An area of the world which is home to an unusually dense biomass diversity is called a ______________ __________________.

• Living Planet

• Habitat diversity

• Biodiversity hotspot

• Ecological restoration

If a population has several variations of several traits in its genome, it is said to have a large ___________________ _________________.

• Species diversity

• Conservation diversity

• Genetic diversity

• Ecological diversity

Which statment is true?

• Larger habitats tend to limit biodiversity compared to smaller habitats 
• Larger habitats tend to promote biodiversity better than smaller habitats 

An endangered species is

• One whose numbers are so small that it is at risk of extinction
  
• One whose not been spotted after many years.
• One whose numbers are abundant.

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