Living Environment Regents Review Practice Evolution Change Over Time Question 2
Friday, 26 June 2009 07:28
Which statement is best supported by fossil records?
A)Many organisms that lived in the past are now extinct.
B)Species occupying the same habitat have identical environmental needs.
C)The struggle for existence between organisms results in changes in populations.
D)Structures such as leg bones and wing bones can originate from the same type of tissue found in embryos.
Correct Answer: Option A - Many organisms that lived in the past are now extinct.
Fossil records provide evidence for the type of organism existent in a period of time. The comparative study of these records with the current living species gives an update that many organisms that lived in the past are now extinct. Hence, Option A is the correct answer.
Fossil records do not provide information about the environmental needs of species in a habitat.
Changes in population can be not only lead by the struggle for existence, but also other factors such as natural calamities.
There are very few / almost negligible fossil records of embryos. Hence, the interpretation of the origination of structures such as leg bones and wing bones from the same type of tissue is not backed by fossil records.
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