Hydroxyapatites (mineral salts), bone is half as strong as steel in resisting compression and as strong as steel in resisting tension. Lasts long after death because of mineral composition. Can reveal information about ancient people.
What will be an ideal response?
Inorganic components
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When Mendel crossed purple-flowered pea plants with white-flowered pea plants, he never got offspring with flowers that had an intermediate color. This was counter to the theory of
A. independent assortment. B. blending inheritance. C. direct transmission of traits. D. segregation of alleles. E. continuous variation of traits.
Red light and phytochrome are involved in which of the following plant growth responses? Check all that apply.
_____ thigmotropic responses _____ inhibition of seed germination _____ elongation of etiolated shoots _____ detection of crowding by neighboring plants
The digestive structure that stores concentrated bile is the ____
a. duodenum b. gallbladder
c. liver d. pancreas e. stomach
The first genetic material on Earth was probably _____
A) DNA produced by reverse transcriptase from abiotically produced RNA B) DNA molecules whose information was transcribed to RNA and later translated in polypeptides C) self-replicating RNA molecules D) oligopeptides located within protobionts