Structures present in two different species that both have been inherited from a common ancestor are said to exhibit ________
Fill in the blank(s) with correct word
homology
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A mutation from the most prevalent form of a gene to a mutant form is called a ________ mutation.
A. reverse B. forward C. escalating D. wild card
IgE is the:
a. first antibody produced when an invading microorganism is initially encountered. b. antibody that is associated with various parasitic infections. c. antibody that is secreted in various body fluids and primarily protects those body surfaces lined with mucous membranes. d. second antibody produced when an in-vading microorganism is initially encoun-tered and the most abundant.
The female reproductive system includes all
EXCEPT which of the following?
a. clitoris b. vagina c. oviduct d. ovary e. mammary gland
The earliest discovered fossils are of ________ dating back to ________ years ago
A) single-celled eukaryotes; 4.5 billion B) prokaryotes; 3.5 billion C) algae; 1 billion D) fish; 600 million