Proofread the given passage on ANSWER SHEET TWO as
instructed. For a wrong word, underline the wrong word
and write the correct one in the blank provided at the end of the
line. For a missing word, mark the position of the
missing word with a "∧" sign and write the word you believe to be missing in the
blank provided at the end of the line. For an unnecessary
word, cross the unnecessary word with a slash "—" and put the word in the blank
provided at the end of the line.
Like all animal species, plant species must spread their
offspring to suitable areas where they can grow and pass on their parent’s
genes. Young animals generally spread by (1)
______ walking or flying. Because plants don’t have that ability, they may
somehow hitchhike. (2) ______ Some plant
seeds scatter by blowing in the wind or floating on water. Many other
plant species, though, trick an animal into carrying their seeds. How do they
do They enclose them within a tasty fruit and advertise the fruit’ s
ripeness by its color or smell. The hungry animal collects and swallows the
fruit, walks or flies off, but later spits out the seeds some- (3)
______ where far from its parent tree. Seeds can thereby be carried thousands
of mi]es. It may (4) ______ surprise you to
learn that plant seeds can resist digestion. In fact, some seeds
actually require passage through an animal’ s body before they can grow. Wild
strawberries offer a good example of hitchhiking tactic. When strawberry
seeds are still young and not yet (5)
______ ready to be planted, the surrounding fruit is green, sour, and hard.
When the seeds final (6) ______ mature, the
berries turn red, sweet, and tender. The change in the berries’ color serves as
a signal to birds which then eat the strawberries, fly off, and eventually
spit out the seeds. Naturally, strawberry plants doesn’t set out with a
conscious intent of attracting birds only (7) ______ when their
seeds were ready to be dispersed away. Nor did birds set out with the intent of
(8) ______ planting strawberries. Rather, strawberry
plants evolved through natural selection. The sweeter and ruder the final
strawberry, the more birds spread its ripe seeds; the greener and
(9) ______ more sour the young strawberry, the birds destroyed the
seeds by eating berries before the (10) ______ seeds
were ready.