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Changes in the environment result in ____. a. geologic eras c. plate tectonic changes b. physical changes in species d. all of the above
Weegy: physical changes in species. ... the environment. Plate tectonics may affect organic evolution because movement of ... [ eras ____ on the geologic time scale are marked ... ] (More)
Question
Updated 1/17/2014 1:00:48 PM
1 Answer/Comment
Changes in the environment result in d.all of the above. Source:
Added 1/17/2014 1:00:46 PM
Trilobites are index fossils because they ____. a. changed slowly through time c. exhibit specific characteristics b. lived over large areas of the world d. all of the above
Weegy: changed slowly through time, lived over large areas of the world, and exhibit specific characteristics. [ Trilobites are index fossils because they ____. ... ] (More)
Question
Updated 9/2/2015 1:30:37 AM
1 Answer/Comment
Trilobites are index fossils because they changed slowly through time, lived over large areas of the world, and exhibit specific characteristics. Answer: all of the above.
Added 9/2/2015 1:30:21 AM
This answer has been added to the Weegy Knowledgebase
Changes in the trilobite exoskeleton can be attributed to ____. a. changing environments c. inter-species mating b. competition for survival d. both a and b
Weegy: Changes in the trilobite exoskeleton can be attributed to changing environments and competition for survival. Source: (More)
Question
Expert Answered
Asked 12/22/2013 9:23:42 AM
0 Answers/Comments
Index fossils are used to determine the _________ of the rock. a. age c. color b. makeup d. none of the above
Weegy: Geologic age D) Rock type E) Color. C ... How can fossils be used to determine when in the geologic time scale a sedimentary rock ... [ none of the above choices. a ... ] (More)
Question
Updated 9/1/2014 2:33:21 PM
1 Answer/Comment
Index fossils are used to determine the age of the rock.
Added 9/1/2014 2:33:20 PM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by sujaysen [9/1/2014 2:36:20 PM]
Mineral replacement, carbon film and molds are a few examples of a. fossil formation c. fossil preservation b. fossil index d. ancient enviorments
Question
Not Answered
Updated 5/18/2015 7:13:39 PM
1 Answer/Comment
Mineral replacement, carbon film and molds are a few examples of Fossil preservation.

Added 5/18/2015 7:13:39 PM
This answer has been added to the Weegy Knowledgebase
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