Question

More than 95 million years ago, a mighty river system roared through what is now the Moroccan Sahara, providing a home to one of the
most unusual river monsters known to science, the predatory dinosaur Spinosaurus. Fully grown, the 50-foot-long, seven-ton beast
stretched longer than an adult Tyrannosaurus rex and had an elongated snout similar to a crocodile's that bristled with sharp, conical
teeth.
160019
1600
Now, paleontologists plumbing these ancient sediments have found large abundances of those conical teeth at two sites in south-
eastern Morocco. In one bone bed, teeth from Spinosaurus outnumber those of other dinosaurs by roughly 150 to one. Because these
rocks formed from river sediments, the discovery implies that Spinosaurus lost its teeth in the water far more often than other dinosaurs
that lived in the region-further bolstering the case that this animal was a unique aquatic killer.
"With such an abundance of Spinosaurus teeth, it is highly likely that this animal was living mostly within the river rather than along its
banks," lead study author Thomas Beevor, a graduate student at the U.K.'s University of Portsmouth, says in a press release.
which of the following was NOT a characteristic of the creature?
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Answer 1

Answer:

Vertebrates constitute the vast majority of living chordates. The backbone of vertebrates protects the dorsal tubular nerve cord and serves as the axis of the internal skeleton. All vertebrates are built along the basic chordate body plan- a stiff rod running through the length of the animal (vertebral column or notochord), with a hollow tube of nervous tissue (the spinal cord) above it and the gastrointestinal tract below.

So, the correct answer is option C.