"Pregnant Fossil May Shed Light on Animal Behavior"
by PBS NewsHour
The finding, published in the online edition of the journal Science on Thursday, is definitive evidence that the giant sea creature gave birth to single, live offspring, rather than laying eggs, like most reptiles, says paleontologist and lead author F. Robin O’Keefe. This reproductive behavior also indicates that the animals were gregarious social creatures that cared for their young, similar to toothed whales or dolphins, according to the paper.
Use the passage to answer the question. Find the word in the text related to the word reproduce. Based on the context and syntax, what conclusion can you draw about the word part -ive?
It creates an adverb that tells how something is done.
It creates an adjective that tells what something is able to do.
It creates a noun that names a person.
It creates an adjective that tells what kind something is.