A small fruit? I don't think there's any term for it except a small fruit...
The small green fruit with orange inside is called a kiwano or horned melon.
pips
a small basket filled with arranged fruits
they are called fruit flies.
It is called physalis or the chinese lantern plant
Cherry
pear
A small strip of lemon peel or any fruit is called a ZEST.
A kinoto translates to a fruit called a kumquat. The kinoto originated in China. It is considered to be a hybridizing fruit. It is said to be a small sour fruit.
A small seed in a fruit is called a 'pip
Lemon
A seedless orange is called a navel orange. Navel oranges are characterized by the small undeveloped secondary fruit embedded at one end, resembling a human navel. This small fruit is sterile, resulting in seedless varieties.