If a cell had a damaged central vacuole, it would have difficulty performing what function?
A) Storing water
B) Converting light energy into food molecules
C) Converting food energy into cellular energy
D) Assembling lipids
A
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What name is given to the physical characteristic due to the genes?
What will be an ideal response?
Which of the following are the fundamental embryonic tissues called the "germ layers"?
A. mesoderm, exoderm, and hydroderm B. ectoderm, endoderm, and exoskeleton C. mesoderm, endoderm, and ectoderm D. mesoderm, muscle, and tissue E. tissues, organs, and organ systems
Most segmentation genes code for:a
transcription factors. b. genetic switches such as operators. c. repressors. d. insulin-like growth factors. e. morphogens.
Which of the following best expresses the concept of natural selection?
A) reproductive success influenced by inherited characteristics B) inheritance of acquired characteristics C) change in response to need D) a process of constant improvement, leading eventually to perfection