Question

study the timeline.
which statement indicates what the fossil record suggests about evolution on earth?
humans have only recently existed on earth.
organisms originally lived only on land.
life on earth started before water formed on earth.
multicellular life evolved before complex single - celled life.

Explanation:

• Option 1: The timeline shows humans (5 MYA) compared to much earlier life forms (e.g., single - celled life at 4.1 BYA). So, humans have only recently existed on Earth.
• Option 2: Earliest life (single - celled) was likely in water (as earliest water is at 4.3 BYA and life at 4.1 BYA), not originally on land.
• Option 3: Life (4.1 BYA) started after water formed (4.3 BYA).
• Option 4: Complex single - celled life (2.5 BYA) evolved before multicellular life (800 MYA).

Answer:

Humans have only recently existed on Earth.