Each nephron has its own blood supply.
Answer the following statement true (T) or false (F)
Answer: True
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Which is an example of warning coloration?
a. The dark brown mane of a lion b. The bright green and blue feathers of a peacock c. The black and yellow bands of a wasp d. The black and white stripes of a zebra e. The bright red color of roses
Carbon and hydrogen make up many biologically important molecules. Carbon has an electronegativity of 2.55, whereas hydrogen has an electronegativity of 2.2. Based on the electronegativity difference between the atoms, the carbon and hydrogens shown here have just formed
A. an ionic bond.
B. a hydrogen bond.
C. a polar covalent bond.
D. a nonpolar covalent bond.
E. an element.
What is the name of the tubules in true kidneys?
a. metanephridia b. protonephridia c. hepatic tubules d. nephrons
Incest avoidance evolved in humans:
a. because breeding among close relatives leads to a higher proportion of offspring with genetic defects and, consequently, reduced fitness. b. as part of a larger fixed action pattern. c. because many bees, wasps, and ants can inflict painful, and even fatal, stings and bites. d. because in early human societies, alliances could be achieved by marrying the chief's daughter to the son of the chief of a different tribe. e. because breeding among close relatives leads to a higher proportion of offspring with increased fitness.