(1) A

Question 0

Biosphere

Answer 0

Layer of life supporting, land, air & H20 which surrounds earth

Question 1

Ecology

Answer 1

Study of inter-relationships b/w org & env

Question 2

Population

Answer 2

Group of I/B ind of same species in a habitat

Question 3

Community

Answer 3

Total no of diff org living in same place at same time

Question 4

Habitat

Answer 4

Place where community of orgs live

Question 5

Microhabitat

Answer 5

Smaller unit w/ micro climate

Question 6

Ecological niche

Answer 6

Where org lives
What it does
Place in env
Abiotic/biotic conditions for survival

Question 7

Ecosystem

Answer 7

All interacting biotic & a biotic features in a specific area

Question 8

Abiotic LF

Answer 8

N-living part of env

Question 9

Biotic LF

Answer 9

Living part of org.
Other orgs
Intra/interspecific comp
Pred-Prey relationship

Question 10

Intraspecific

Answer 10

Same

Question 11

Interspecific

Answer 11

Different species

2 species same niche

Question 12

Competitive exclusion principle

Answer 12

No 2 species can occupy same niche
Dominant species increases
Other species becomes extinct