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Ecosystems and Food Chains

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Questions and Answers

What is the importance of genetic variability in a species?

It increases the vulnerability of a species to diseases

It is essential for maintaining a healthy breeding population (correct)

It ensures the extinction of a species

It reduces the number of species in an ecosystem

What is the term for the diversity of genes within a species?

Ecosystem Diversity

Genetic Diversity (correct)

Species Diversity

Ecological Diversity

Which of the following is an ecosystem service?

Pollination (correct)

Predation

Decomposition

Photosynthesis

What is the term for the number of different species of plants and animals in a region?

Species Diversity Signup and view all the answers

What is the term for the variety of living organisms in an ecosystem?

Biodiversity Signup and view all the answers

What is the term for the role of natural enemies in controlling diseases?

Disease Control Signup and view all the answers

What percentage of animal protein consumed worldwide comes from fish and other marine animals?

20% Signup and view all the answers

What is the estimated annual value of fish and other marine animals consumed worldwide?

$50-$100 billion Signup and view all the answers

What is the main benefit of having a diverse range of species in an ecosystem?

It provides essential goods and services for human well-being Signup and view all the answers

What is a major threat to biodiversity?

Habitat destruction and fragmentation Signup and view all the answers

What is the role of healthy pollinators in crop production?

They are essential for the production of more than a third of the world's crops Signup and view all the answers

What is the estimated number of plant species that are cultivated or harvested from the wild?

More than 7000 Signup and view all the answers

What is a major consequence of increasing population growth?

Habitat loss and pollution Signup and view all the answers

What is the term for a species that is exclusively native to a particular place or biota?

Endemic species Signup and view all the answers

What is the scientific study of how humans impact organisms and the development of ways to protect biological diversity?

Conservation biology Signup and view all the answers

Which country has the highest number of endemic species per unit area of habitat, after Madagascar?

Philippines Signup and view all the answers

What is the term for a species that is at risk of extinction due to habitat loss, pollution, or other human activities?

Endangered species Signup and view all the answers

What is the term for regions that experience an alarming rate of destruction of important natural resources that harbor biodiverse organisms?

Biodiversity hotspots Signup and view all the answers