Pick the a. b.c below.

a. 8 grass/m2
b. 16 grass/m2
c. 24 grass/m2
d. 32 grass/m2

16grass/m²

Explanation:

Given parameters:

Number of grasses in quadrat = 4

Area of the square  = 0.25m²

Unknown:

Population density  = ?

Solution:

Population density is the number of organisms per given area;

  Population density  =  

 Population density  =   = 16grass/m²

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

i think its white blood cells

i hope this