Page 182 - SB_G2.4_M7-8_Flip
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OW cacti have arms—but hugging them is a bad idea.
Cactus plants keep animals away with spines. Some
OW
OW
look as dangerous as a spiny Yowch!
A stinging nettle doesn’t
cactus. But it’s covered with
sharp hairs called trichomes.
The hairs are like tiny
needles. If you touch them,
they poke your skin with
chemicals that sting and
itch. You might get a nasty
rash.
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