Answer:
C...
Vitamin D-- Lack of sunlight--Brittle bones(rickets)
B...
Iron ---- Lack of sunlight, fish and eggs --- Anaemia

Actually Welcome to the Concept of the Biology
1) Brab Fish
2) Newts
Each carpel includes an ovary (where the ovules are produced; ovules are the female reproductive cells, the eggs), a style (a tube on top of the ovary), and a stigma (which receives the pollen during fertilization). The Male Reproductive Organs: Stamens are the male reproductive parts of flowers.
Answer:
Evolution
Explanation:
Whenever a species changes over a period of time, it's called Evolution, which is (normally) driven by Natural Selection.
Finding the reactions in the equation 2KCIO3(s)-2KCI (s)+ 3O2 (g) A 2KCIO3 B 2KCI and 3O2 C 2KCI D.....well first look for the synthesis reactions which are if two different elements are one one side and a compound on the other side where the elements form....the next reaction you would look for would be the decomposition reaction.....and I still don't see this because if I did it would be the same as the synthesis reaction except it would be the other way around...sooo the compound of the elements would be on the right and when you add the elements it would be on the left side....the next reaction is the single displacement which I don't see in this example...the single displace me is when you are adding the elements not the left and on the right it's the same thing BUT the elements are in different order....and the last one is the combustion reaction which I do see....this is when there is adding element on both side.......so the reactions I see in this example is the combustion reaction.....hope it helps....:)