Hermaphrodites are individuals with functioning male and female reproductive organs who are capable of producing both male and female gametes. Which statement about hermaphrodites is false?
A) Hermaphrodites are common among invertebrates.
B) An XYY human is a hermaphrodite.
C) No human hermaphrodites exist.
D) Some vertebrate hermaphrodites exist.
E) Humans with Klinefelter syndrome are not hermaphrodites.
B) An XYY human is a hermaphrodite.
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Which of the following is a characteristic of mitochondria?
a. being unable to survive outside the cell b. using energy to make glucose c. being involved in photosynthesis d. having linear-shaped chromosomes
Four of the following organisms belong in the clade of class Reptilia. Which one does not?
a. turtle b. fish c. birds d. lizards e. snakes
Which part of a biosphere reserve has the most intensive human impact?
A. the core zone B. the buffer zone C. the multiple use zone D. there is no human impact in a biosphere reserve. E. there is the same amount of human impact throughout the biosphere reserve
You discover in a study of a group of five fossil taxa with spines that the mean spine length has increased over time. When you tabulate mean spine lengths for each taxon over time, you obtain the following table. X = Taxon has become extinct
Time interval Taxon 1 Taxon 2 Taxon 3 Taxon 4 Taxon 5 245–214 MYA 2.3 7.0 1.4 5.6 4.8 215–184 MYA 2.4 6.9 1.5 5.4 4.6 185–154 MYA 2.2 7.1 1.3 5.3 4.7 155–124 MYA X 7.2 1.5 5.5 4.9 125–94 MYA X 7.0 X 5.7 4.6 95–65 MYA X 6.8 X 5.6 X What kind of process is underlying this active evolutionary trend? What will be an ideal response?