Small substances that are the building blocks of proteins:

What will be an ideal response?


amino acids

Biology & Microbiology

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A scientist is studying several areas along an elevation gradient. Her study involves prescribed burns (purposefully set, low-intensity fires) in the different areas, followed by a comparison of the type and abundance of organisms that colonize them over the next ten years. What scale best describes her study?

A. Physiological ecology B. Ecosystem ecology C. Organismal ecology D. Community ecology E. Population ecology

Biology & Microbiology

In a study examining the effects of disturbances and recruitment on the growth of coral in a portion of the Great

Barrier Reef, researchers concluded that changes in the coral colonies are ____.

a. due to external factors only. b. due to internal factors only. Chapter 53 - Population Interactions and Community Ecology Cengage Learning Testing, Powered by Cognero Page 16 c. due to both external and internal factors. d. solely due to human interference. e. not observable after disturbances

Biology & Microbiology

If a child has an AB blood type, ____

a. both parents must have different blood types b. neither parent can have blood type AB c. both parents must have blood type AB d. both parents can be any blood type e. one parent can have blood type O

Biology & Microbiology

Determinate cleavage takes place in ____ and is characterized by a pattern of development where the ultimate fate of

each cell is ____. a. deuterostomes; not fixed until late in the developmental process b. protostomes; not fixed until late in the developmental process c. deuterostomes; fixed early in the developmental process

d. protostomes; fixed early in the developmental process e. coelomates; fixed early in the developmental process

Biology & Microbiology