A student is preparing a presentation on early hominin evidence and has taken the following notes:
* In 1978, paleontologist Mary Leakey discovered fossilized footprints in Laetoli, Tanzania.
* The footprints are preserved in volcanic ash dated to approximately 3.7 million years ago.
* The footprints provide the earliest concrete evidence of upright bipedalism in early hominins.
* The trail consists of footprints made by three individuals of the species *Australopithecus afarensis*.
The student wants to write a sentence that emphasizes both the researcher who discovered the footprints and the approximate age of the footprints. Complete the sentence by filling in the blanks.
Answer:Discovered by 【Mary Leakey】, the Laetoli footprints date back to 【3.7 million years ago】.
Answer
Discovered by Mary Leakey, the Laetoli footprints date back to approximately 3.7 million years ago.
The completed sentence accurately synthesizes the notes by identifying Mary Leakey as the researcher who discovered the footprints and approximately 3.7 million years ago as the age of the footprints, satisfying both aspects of the rhetorical goal.
Step-by-Step Solution
Key Concept
Synthesizing details from notes to meet a specific rhetorical goal.
Estimated Time:1m 0s