About how long have modern humans existed?
A) 25,000 years
B) 250,000 years
C) 2,500,000 years
D) 25,000,000 years
B
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Silent mutations are possible due to the degenerate nature of the genetic code
Indicate whether the statement is true or false
A deviation like having an extra toe is considered a ____
a. genetic abnormality b. genetic disorder c. syndrome d. pedigree e. carrier
Competition among individual members of the same species is referred to as ________ competition
Fill in the blank(s) with correct word
Which of the following is a mismatched pair:
1. local infection - restricted to small area 2. viremia - viruses traveling in the blood 3. secondary infection - symptoms reoccur occasionally for years after an initial infection (ex. genital herpes) 4. acute infection: rapid onset of symptoms 5. focal infection: original location of spreading infection