Human Influences on Ecosystems Definitions

Question 1

Insecticide

Answer 1

a substance used to kill insects

Question 2

Herbicide

Answer 2

a substance used to destroy unwanted vegetation(is toxic to plants)

Question 3

Selective breeding

Answer 3

the process of choosing parents with desirable characteristics to breed together to produce offspring with those same desirable characteristics

Question 4

Monoculture

Answer 4

the cultivation of a single crop in a given area

Question 5

Intensive livestock production

Answer 5

an approach to the rearing of animals designed to maximize production while minimizing costs

Question 6

Biodiversity

Answer 6

the number of different species that live in an area

Question 7

Eutrophication

Answer 7

the process in which excessive growth of algae occurs in a water body due to the excessive minerals and nutrients in it

Question 8

Sustainable resource

Answer 8

a resource which is produced as rapidly as it is removed from the environment so that it does not run out

Question 9

Artificial insemination

Answer 9

the process of introducing sperm into a female’s reproductive tract to fertilize her eggs

Question 10

In vitro fertilisation

Answer 10

a procedure in which eggs are removed from a female’s ovary and combined with sperm outside the body to form embryos