Answer:
Seven other species are extinct, prehistoric species known from fossils. The giraffe's chief distinguishing characteristics are its extremely long neck and legs, its horn-like ossicones, and its distinctive coat patterns. It is classified under the family Giraffidae, along with its closest extant relative, the okapi.
An ecosystem is a community where populations of different species interact with one another and with their non-living environment.
The correct answer is <span>hollow ball of cells formed after a fertilized cell undergoes cell division.
It is found in the earliest development of mammals and an embryo forms out of it.
</span><span>The definition of blastocyst
mammalian blastula in which some differentiation of cells has occurred.</span>
physical defense
chemical defense
camouflage
social defense