There are 4 main functions of roots: absorption of water and inorganic nutrients. anchoring the plant body to the ground and supporting it. storage of food and nutrients. I hope this helps!
The logistic growth curve is given by the differential equation,

When the rate of change in population approaches the maximum carrying capacity, the curve starts to flatten or become saturated.
The left hand of the differential equation becomes zero and attains a steady state equilibrium at,


Hence, at
.
The right end of the logistic growth curve shows the flattening of the curve while reaching the maximum carrying capacity.
Replication should be included in an experimental design.
Explanation:
as we know a man who has type AB blood could not father a child with type O blood, because he would pass on either the A or the B allele to all of his offspring. Despite their usefulness in this regard, ABO blood groups cannot be used to confirm whether a man is indeed a child's father.
thus, the husband isnt the biological father of the baby.