The process by which the first cell of a new individual gives rise to a multicell adult is called _______.
A. reproduction
B. development
C. growth
D. inheritance
E. homeostasis
Answer: B
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As atmospheric carbon dioxide levels increase, the oceans become more ____
Fill in the blank with the appropriate word.
Which cellular layer appears exclusively in roots?
a. epidermis b. pith c. cortex d. endodermis
The cardiac conduction system consists of
a. the sinoatrial node. b. the atrioventricular node. c. junctional fibers. d. a branching bundle of fibers. e. all of these.
In a eukaryotic cell an abnormal protein is binding to the promoter for a gene. Which of the following processes will likely occur in this scenario?
A) Transcription factors will bind to enhancers. B) Transcription factors will bind to the promoter. C) The gene will be expressed normally. D) RNA polymerase will bind to the promoter.