2.1.2 A rose bush contains 1 000 kJ/m'lyear of energy and only 10% of
this energy is passed on at each trophic level of the food chain. How
much energy will be passed on to the blackbird? Show ALL your
calculations.
(4)

i have to report this, it doesn't relate to biology

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.

i believe your answer would be c.. : )

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.