Before Darwin published his work, Lamarck and others had suggested mechanisms for evolution. By what means did Darwin propose species evolved over time?
A) Overproduction of young
B) Passing on acquired traits
C) Survival of the strongest
D) Natural selection
D
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Examine the photomicrograph on the right, taken using an oil-immersion objective, the highest practical magnification of a light microscope. (The final magnification is 770x.)
(a) Based on your observation, identify the kingdom to which the organism belongs. (b) Justify your answer.
The biochemical oxygen demand (BOD) test is primarily a measure of carbon demand and should not include nitrogen oxidation demand.
Answer the following statement true (T) or false (F)
Species richness is __________ when any one species enjoys a position of dominance
a. no different b. more dense c. reduced d. increased e. complex
Complete catabolism of lactose requires ________.
A. ATP, NAD, and appropriate enzymes B. NAD and appropriate enzymes C. ATP, UTP, NAD, and appropriate enzymes