Biology | Study Mode

Join Discuss Share Question Share to WhatsApp
Question 173
A
mangrove swamps and the sahel savanna 
B
rainforests and the sudan savanna 
C
desert and the sudan savanna 
D
rainforests and the deserts 
Explanation.
Share Answer

No official Explanation yet!


Correct Option:
B
Join Discuss Share Question Share to WhatsApp
Question 174
A
40 
B
1000 
C
40000 
D
200000 
Explanation.
Share Answer

No official Explanation yet!


Correct Option:
D
Join Discuss Share Question Share to WhatsApp
Question 175
A
pioneer colonizers are more in number 
B
soil is already present 
C
secondary seres require less nutrients 
D
species competition is increased 
Explanation.
Share Answer Secondary succession is usually much quicker than primary succession for the following reasons:

There is already an existing seed bank of suitable plants in the soil.

Root systems undisturbed in the soil, stumps and other plant parts from previously existing plants can rapidly regenerate.

The fertility and structure of the soil has also already been substantially modified by previous organisms to make it more suitable for growth and colonization.

Correct Option:
A
Join Discuss Share Question Share to WhatsApp
Question 177
A
maintain soil fertility 
B
improve the nutritional value of crops 
C
control soil erosion 
D
ensure the growth of crops 
Explanation.
Share Answer

No official Explanation yet!


Correct Option:
A
Join Discuss Share Question Share to WhatsApp
Question 180
A
The father possesses a gene for shortness 
B
The mother posesses a gene for shortness 
C
Nature makes the child short 
D
Both parents possess gene for shortness 
Explanation.
Share Answer

No official Explanation yet!


Correct Option:
D
Previous Page Next Page
Question Map
Quiz link
Share Biology with your friends
Share to WhatsApp Share Quiz CBT mode Study mode copy link