Ecology

Question 1

Define species

Answer 1

a group of organism that can interbreed and produce fertile offspring

Question 2

Define hybrids

Answer 2

Offsprings produced from 2 different species by cross-breeding. They are reproductively sterile

Question 3

Define population

Answer 3

a group of organism of the same species that are living in the same area and same time

Question 4

Define community

Answer 4

a group of populations living together and interacting with each other within a given area

Question 5

Define habitat

Answer 5

the environment in which a species normally lives

Question 6

Define ecosystem

Answer 6

a community and its abiotic environment

Question 7

Define Autotrophs

Answer 7

organisms capable of synthesising their own organic molecules as source of food

Question 8

Define heterotrophs

Answer 8

organisms that obtain organic molecules from other organisms via feeding mechanism

Question 9

Define scavengers

Answer 9

type of consumers that principally feed on dead and decaying carcasses as compared to hunting

Question 10

Define detritivores

Answer 10

a type of heterotroph that obtains its nutrients from non-living organic sources eg. detritus (dead particularly organic matter), humus (decaying leaf litter within topsoil)

Question 11

Define saprotrophs

Answer 11

organisms that live on or in non-living organic matter, secrete digestive enzymes into it and absorb the products of digestion