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They have spines for a few reasons. The main two reasons are:
1- Most to all cacti live in hot sunny deserts where they receive a lot of sun. However, the skin of most cacti are sensitive and will get "sunburned" so the spines, believe it or not, give a lot of shade for the cactus.
2-The spines are used for defence against animals,insects,reptiles, etc. They have to defend their moisture inside them from animals who try to drink and eat the cactuses water.
What else can I help you with?
How do you get prickles the moshling on moshi monsters?
prickles is in the potties
What are rose prickles?
Thorns
How do you get rid of prickles?
111
Why are cactus prickly?
Cactus have prickles, sharp spines, or tiny hairs on their surface as a defense mechanism to protect themselves from animals that may try to eat them. These prickles also help cacti to reduce water loss by providing shade and trapping moisture around the plant.
Name a creature which have prickles?
porcupine
What are hedghogs prickles for?
Protecting themselves.
What colour are the prickles on the gruffalo?
purple
What actors and actresses appeared in Prickles - 2011?
The cast of Prickles - 2011 includes: Lauren Bahr as Hettie Lucy Walters as Beth
Why are seeds covered with prickles?
prickles adhere to animals as a mode of transportation seeds like to move and grow up in different places.
How do prickles help a plant to survive?
it defends the plant from animals who do not want to put the prickles in their mouths (and also, please learn how to spell survive)
Why does a hedgehog have prickles?
To protect themselfs from enemies.
What colour are the prickles on the gruffalo's back?
purple
