Potassium-40 is useful in determining the age of a fossil in samples
A. 300,000 years of age and older.
B. aged between 100,000 and 250,000 years.
C. aged between 50,000 and 100,000 years.
D. less than 50,000 years of age.
E. less than 25,000 years of age.
A. 300,000 years of age and older.
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The genomes of all the microbes present in or on the human body are collectively known as the proteome
a. True b. False Indicate whether the statement is true or false
In order for visual perception to take place the brain needs to integrate which of the following signals? a. All of these choices
b. Movement of the object. c. Position of the object. d. Shape of the object. e. Brightness of the object.
Microevolution is change in the __________ of a population. Fill in the blank(s) with the appropriate word(s)
The viral envelope is derived from the host ____________
a. periplasmic space b. plasma membrane c. peptidoglycan structure d. cellulose