Question

In: Biology

37. Habitat fragmentation usually leads to a decrease in biodiversity. A. True B. False 38. An...

37. Habitat fragmentation usually leads to a decrease in biodiversity.

A. True B. False

38. An invasive species is one that

A. is non native to an area

B. is usually introduced by humans either intentionally or by accident

C. is very successful in its habitat

D. crowds out or out competes other organisms

E. all of the above may describe invasive species

39. The main reason for the current high rate of animal extinctions is

A. uncontrolled sport hunting in the developed world.

B. commercial harvesting of wildlife in Africa.

C. drought conditions caused by the greenhouse effect.

D. habitat destruction worldwide.

E. none of the above

40. One who tends to believe the world’s resources are limited:
a)Neo-Malthusian b)Cornucopian

Expert Solution

Answere :

Question 37 : This statement is true i.e. Habitat fragmentation usually leads to a decrease in biodiversity.

Explanation : Habitat fragmentation is the process where large, continuous area of habitat is reduced and divided into two or more fragments that are often isolated from each other. This result in limited dispersal and colonization (movement of offspring between patches).

Question 38 : Option (E) is correct i.e. all of the above may describe invasive species.

Explanation : Invasive species is a type of non-native species that introduced in an area harming native species and their habitats.

Question 39 : Option (D) is correct i.e. habitat destruction worldwide.

Explanation : The main reason for the current high rate of animal extinctions is habitat destruction and habitat loss worldwide.

Habitat destruction is destruction of an area of a an ecological area inhabited by a plant, animal or other organism (habitat). It may be due to clearing of forest land for agriculture, clearing of land for urban development, deforestation etc.

Question 40 : Option (a) is correct i.e. Neo-Malthusian.

Explanation : Neo-Malthusian believed that world’s resources are limited and can only support a limited population.They believed that limited resources keep populations in control.

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