#Question id: 4572
#Unit 11. Evolution and Behavior
Of the following anatomical structures, which is homologous to the wing of a bird?
#Question id: 13129
#Unit 10. Ecological Principles
Biologists performed an experiment with flies to examine the effects of population size on the maintenance of genetic variation and on egg-to-adult survival. From a large source population, they randomly assigned eggs to three experimental populations of size N, equal to 20, 60, and0100. For later generations, they collected N eggs from each population and moved them into identical vials that co0ntained f2re0sh me4d0ium. Th6e0y coun8te0d the number of adult flies that emerged and used tissue samples from the adults for genetic analyses. Genetic variation was measured by scoring alleles at several polymorphic loci and expressed as the average number of alleles at those loci. The results are summarized in Figure 1 and Figure 2 below.
Based on Figure 1, which of the following best describes the change in genetic variation over time?
#Question id: 3002
#Unit 2. Cellular Organization
Cells are most sensitive to penicillin during which phase of the growth curve?
#Question id: 436
#Unit 1. Molecules and their Interaction Relevant to Biology
A chemical reaction with a negative enthalpy change and a negative entropy change
#Question id: 9609
#Unit 9. Diversity of Life Forms
Dozens of potato varieties exist, differing from each other in potato-tuber size, skin color, flesh color, and shape. One might construct a classification of potatoes based on these morphological traits. Which of these criticisms of such a classification scheme is most likely to come from an adherent of the phylocode method of classification?