No, some such as worms have no limbs whereas insects have six and octopuses have eight.
Yes, invertebrates do have limbs.
ARTHROPOD Crustaceans Also, insects, arachnids, etc. Generally, invertebrates with jointed limbs and a hard external skeleton are called arthropods. See http://en.wikipedia.org/wiki/Arthropod
Yes, they have four legs (so they have four 'limbs').
The person has pulses that can be felt in all four limbs, they can move all four limbs, and they can feel all four limbs.
Invertebrates have different structures and tissue organizations. They do not have four limbs, they do not have eyes with true lenses often, they usually don't have a skeleton like ours, their organ systems all work differently from ours.
They are vertebrates - they have a complete skeleton including spine, skull and limbs.
Rats have four legs.
The name of a vertebrate with four limbs is a tetrapod (tetra meaning four and pod meaning foot).
Four.
Four.
yes
A healthy lion has four (4) limbs or legs.