Regarding Investigating Life 22.5, how do the young leaves produce the sugary nectar that the ants eat?
A. from the ants
B. by photosynthesis
C. through their roots
D. from their fruits
E. by respiration
B. by photosynthesis
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Given the following events involved in the regulation of blood volume, which one of the following answers best represents the order in which these events occurs?
1. sodium reabsorbed from distal tubules and collecting ducts 3. secretion of renin from juxtaglomerular apparatus 2. secretion of aldosterone 4. decrease in blood volume 5. production of angiotensin II A) 4, 2, 5, 3, 1 B) 4, 5, 2, 1, 3 C) 2, 3, 4, 1, 5 D) 4, 2, 5, 1, 3 E) 1, 4, 5, 2, 3
The biological macromolecule that is least soluble in water is a(n):
A. nucleic acid. B. protein. C. carbohydrate. D. lipid. E. enzyme
The placement of an organism into a domain is made on the basis of
A) G + C content. B) cell ultrastructure. C) ribosomal RNA analysis. D) serological tests. E) Gram-stain reactions.
Energy transformations occur in such a way as to increase the entropy of the universe.
a. true b. false