Oxygen and carbon dioxide are exchanged due to the process of diffusion
1.True
2.False
1
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As described in section 46.1 and Fig. 46.6 of your book, natural populations are affected by both density-dependent and density-independent factors
In a population affected mainly by density-dependent factors, would you expect natural selection to favor an r-selected or Kselected life history? __________ What will be an ideal response?
Allan Wilson showed that the mtDNA of Africans is more diverse than that of other human populations. Does this finding provide evidence for the multiregional (MRE) model or the recent African origin (RAO) model?
What will be an ideal response?
In what type of tissue would platelets be found?
A) epithelial tissue B) muscle tissue C) nervous tissue D) connective tissue
Animals that have a ventral nerve cord during embryonic development are classified as chordates
Indicate whether the statement is true or false