Which of these muscles would be most involved in a forcible exhalation, as in a sneeze?
A) rectus abdominis
B) sartorius
C) gastrocnemius
D) deltoid
A
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Microbes that live on the surface of plants are called ________ .
Fill in the blank(s) with the appropriate word(s).
The body of a tapeworm consists of segments, each of which is called a(n) proglottid
____________________ Indicate whether the statement is true or false.
Mutations vary in how much they affect the phenotype of an organism. Frameshift mutations typically cause more of an impact on phenotype than other mutations. Which describes a situation in which a deletion mutation would NOT result in a frameshift?
A) The deletion occurs at the beginning of a gene. B) The deleted base is adenine. C) The deletion consists of three consecutive bases. D) The deletion is a result of an error in replication.
The three phylogenetic trees shown here all contain the same members and all have a common ancestor, but are divided up in three different ways. Which tree has members circled that are of more than one evolutionary line and does not include the most recent common ancestor of the included lineages? What type of group is this? 
A. Tree 2; polyphyletic. B. Tree 1; monophyletic. C. Tree 3; polyphyletic. D. Tree 2; paraphyletic. E. Tree 3; monophyletic.