They used them to fight and scare out predators.
The purpose of running spikes are to provide traction as well as minimizing the chances of slipping. The spikes for a distance runner tend to be larger than spikes used by a sprinter.
it used its spikes so that he could defend him self
for protection
They are not spikes - they are arms. They use these 'arms' to catch other cells to mutate them or eat them.
Its a thing of preference because not everyone has the same kinds of spikes. I use the outer 6 on my spikes and put a blunt in for the center but some people only have four places to put spikes. See what you like and just go with that
The Best Move Set for Fortress is: Use fortress as your starter battling pokemon. Then Use Spikes or Toxic spikes i recommend Toxic Spikes because it poisons the pokemon your foe uses. Then if your foe uses Spikes, Toxic Spikes or Stealth Rock make sure Fortress knows Rapid Spin because it will get rid of those pests: Spikes, Toxic Spikes or Stealth rock Best Moveset for Fortress: Spikes Toxic Spikes Rapid Spin Protect The reason for protect is because your opponent will end up fainting of poison use protect so you don't receive damage from your foe in the middle of it good luck
Plants with spikes are adapted to deter herbivores and protect themselves from being eaten. The spikes act as a physical barrier, making it difficult for animals to access the plant's nutrients. Additionally, spikes can also help plants conserve water by reducing water loss through transpiration.
Roselia and its evolve can learn spike and toxic spikes and onix,machop and any other rock type pokemon can learn stealth rock
Porifera use spicules to protect themselves
bird spikes
A hedgehog is an animal with spikes that can be found in gardens. These small mammals are nocturnal and feed on insects, making them beneficial to have around. They use their spikes for protection by curling into a ball when threatened.
You will use it once in the spring and once mid-fall. If this is when your vacation is planned then you would want to use it at this time. If not your trees will be fien until you return. http://lawn-and-garden.hardwarestore.com/77-498-fertilizer-spikes/miracle-gro-tree-and-shrub-fertilizer-spikes-101810.aspx