Organisms are composed of molecules, which are collections of smaller units, termed:
A. monomers.
B. atoms.
C. electrons.
D. polymers.
E. ions.
B. atoms.
Biology & Microbiology
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The inducing antigens that react with an antibody are called heterologous antigens
Indicate whether the statement is true or false.
Biology & Microbiology
Answer the question using the accompanying figure. What is occurring in step 2?
a. mitosis b. the first meiotic division c. the second meiotic division d. fertilization e. fusion
Biology & Microbiology
The first eukaryotic fossils are dated to about
a. 3.8 billion years ago. b. 2.1 billion years ago. c. 1.5 billion years ago. d. 750 million years ago. e. 201 million years ago
Biology & Microbiology
Genetics is defined as the study of ____
A. diseases B. DNA C. heredity D. chromosome structure E. more than one of these
Biology & Microbiology