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1 dzień temu · A mammal (from Latin mamma 'breast') is a vertebrate animal of the class Mammalia (/ m ə ˈ m eɪ l i. ə /).Mammals are characterized by the presence of milk-producing mammary glands for feeding their young, a neocortex region of the brain, fur or hair, and three middle ear bones.These characteristics distinguish them from reptiles and birds, from which their ancestors diverged in the ...
1 dzień temu · A fish (pl.: fish or fishes) is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits.Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and acanthodians.Most fish are cold-blooded, their body ...
1 dzień temu · Fatima is on the track team. One day at practice, it took her 19 minutes to run 2 miles. The unit rate is 9.5 minutes per mile. Solution: 19/2=9.5.
