If you found a fossilized dinosaur bone, what could be done to accurately determine the age of the fossil?
A) Extract and sequence DNA from the bone.
B) Look at pieces of the bone under a microscope.
C) Analyze the isotopes of carbon in the fossil.
D) Compare the appearance of the bone to other fossilized bones.
Answer: C
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What is the correct order of the reproductive cycle of viruses?
A. Attachment-Entry-Viral assembly-Integration-Synthesis of viral components-Release B. Viral Assembly-Attachment-Entry-Integration-Synthesis of viral components-Release C. Attachment-Entry-Integration-Synthesis of viral components-Viral assembly-Release D. Integration-Attachment-Entry-Viral assembly-Synthesis of viral components-Release
An example of an animal with a long digestive tract and molars with a large, ridged surface is
a. cat. b. deer. c. dog. d. shark. e. tiger.
Climate
a. changes with the seasons. b. refers to the atmospheric conditions at a particular place at a particular time. c. is determined by temperature and availability of water. d. is determined by the organisms living in a particular area. e. is the same throughout the globe.
Osmosis is the transfer of ________ through a semipermeable membrane.
Fill in the blank(s) with correct word