Which are the first organisms to colonize on a bare rock?
Options
(a) fungi (b) lichens (c) diatoms (d) mosses
Correct Answer:
lichens
Explanation:
No explanation available. Be the first to write the […]
The presence of large amount of nitrogen in the atomosphere is due to
Options
(a) nitrogen cycle (b) nitrites (c) decomposers (d) ammonia
Correct Answer:
decomposers
Explanation:
No explanation available. Be the first […]
Rapid decline in the population, due to high mortality rate, is called
Options
(a) population explosion (b) population crash (c) population density (d) all of the above
Correct Answer:
population crash
Explanation:
No […]
How much energy is consumed from one trophic level to another trophic level
Options
(a) 15% (b) 5% (c) 20% (d) 10%
Correct Answer:
10%
Explanation:
No explanation available. Be the first to […]
If the stronger partner is benefitted and the weak partner is damaged it is known as
Options
(a) predation (b) allelopathy (c) symbiosis (d) commensalism
Correct Answer:
predation
Explanation:
No explanation available. Be […]
2017 Copyright Doctor Dreams Training Academy