A scientific theory
a. is widely accepted and supported by several
evidences.
b. is widely accepted but not necessarily
supported by several evidences.
c. is sometimes accepted and supported by
several evidences.
d. is sometimes accepted and not necessarily
supported by several evidences.
e. is always a "truth.
A
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In an antibody-mediated immune response, cytokines induce ____
a. mitosis b. meiosis c. DNA replication d. protein synthesis e. gene splicing
The pleating or coiling of a protein is known as the protein's ____ structure.
A. primary B. secondary C. tertiary D. quaternary
After blood flows through the right ventricle of the human heart, its next major destination is
A. the arms. B. the systemic system. C. the lungs. D. the left ventricle.
Answer the following questions true (T) or false (F)
1. Sponges were the earliest animals to evolve true tissues. 2. Asymmetry refers to arrangement of body parts evenly around a central point. 3. Platyhelminthes is the first phylum to possess a coelom.