Cacti in the deserts of southwestern North America and some euphorbs of the deserts of Africa, have barrel-shaped stems, short-lived leaves, and spines, yet these two types of plants are from different evolutionary lineages. This is an example of
A. selective breeding.
B. transitional forms.
C. homologous traits.
D. convergent evolution.
D. convergent evolution.
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Recombination frequency between genes can be used to generate a
A. genetic map. B. physical map. C. restriction map. D. haplotype map.
Provide evidence that supports the hypothesis that liverworts were the first land plants
What will be an ideal response?
The reintroduction of ______ in the year 1995 increased biodiversity in Yellowstone National Park.
a. coyotes b. elk c. wolves d. gibbons
Which of the following is not a characteristic of epithelial tissue?
A. The layers consist of loosely packed cells. B. It lines the covering of hollow organs. C. It lines the covering of the inside of hollow organs. D. It anchors to other tissue by an extracellular matrix. E. Adjacent cells in the tissue are connected by tight junctions.