The single atom you would choose to remove from living organisms in order to remove the highest percentage of atoms would be:
A. Oxygen.
B. Nitrogen.
C. Hydrogen.
D. Carbon.
C. Hydrogen.
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Which lineage do legless caecilians belong to?
a. Gymnophiona b. Squamata c. Anura d. Aves
Stack of chlorophyll-containing thylakoids in a chloroplast.
What will be an ideal response?
Beyond the conditions required for consistent estimation of a model for causality, in order to conduct inference what additional assumption is required?
A. The errors are distributed as the student T distribution. B. The size of the sample is sufficiently large (e.g., 30(K + 1), where K is the number of coefficients). C. The errors are distributed normally. D. None of the answers is correct.
Which of the following oxidize H2S to SO4-2, the form of sulfur animals use for their metabolism?
A. Beggiatoa B. Desulfovibrio C. purple sulfur bacteria D. both Beggiatoa and purple sulfur bacteria E. both Beggiatoa and Desulfovibrio