Evolution on a large scale, or ____ involves speciation, or the splitting of one species into two or more species.
Fill in the blank(s) with the appropriate word(s)
Answer: macroevolution
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The polypeptide-making organelles, which consist of protein combined with RNA, are called
A. ribosomes. B. Golgi bodies. C. lysosomes. D. centrosomes. E. mitochondria.
Ammonification is the conversion of ________ to NH3 and NH4.
A. living plant matter B. nitrate C. inorganic nitrogen D. nitrite E. organic nitrogen
What are characteristics of r-selected populations? (Check all that apply.)
_____ early age of first reproduction _____ late age of first reproduction _____ small brood size _____ large brood size _____ little or no parental care _____ extensive parental care _____ short generation time _____ long generation time _____ type I survivorship curves _____ type III survivorship curves
Which of the following best explains why modern seedless vascular plants are confined largely to wet or humid environments?
a. They require soil. b. They require reflected sunlight. c. They require symbiotic bacteria in the water. d. They require external water for reproduction.