TIMED QUESTION))Study the timeline. A timeline. 4.5 billion years ago, Earth is formed. 4.3 billion years ago, Earliest water. 4.1 billion years ago, Single celled life. 3.5 billion years ago, Earliest oxygen and photosynthesis. 2.5 billion years ago, Complex single celled life. 1.5 billion years ago, Multi cellular life. 500 million years ago, Land life. 300 million years ago, Dinosaurs. 200 million years ago, Mammals. 130 million years ago, Flowers. 5 million years ago, Humans.
Which statements indicate what the fossil record suggests about evolution on Earth? Check all that apply.
Humans have only recently existed on Earth.
Organisms originally lived only in Earth’s water.
Life on Earth started when water formed on Earth.
Plants did not have flowers when dinosaurs existed.
Multicellular life evolved before complex single-celled life.
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Punctuated equilibrium verses gradualism have long been contested as ways in which species evolve. choose the best evidence for gradualism.
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Some substances but not other can cross the (blank) membrane of a cell
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Which environmental change would most likely result in bullfrog offspring that are able to store more water than bullfrogs in previous generations?
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3. draw a topographic map that displays the following features: (4 points each) a. the contour interval is 20 meters. b. the point of lowest elevation is 960 meters. c. the point of highest elevation is 990meters. d. there is at least one sinkhole or depression, at any elevation. e. there is at least one steep slope and one gentle slope.
Answers: 3
TIMED QUESTION))Study the timeline. A timeline. 4.5 billion years ago, Earth is formed. 4.3 billion...
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