Stiling and Drake conducted experiments about the effects of elevated atmospheric carbon dioxide on insect herbivory. What did they find?
A. Elevated plant growth, but no change in insect herbivory.
B. No change in plant growth, but elevated insect herbivory.
C. Elevated plant growth, but reduced insect herbivory.
D. Elevated plant growth and insect herbivory.
E. No change in plant growth, but increased insect herbivory.
C. Elevated plant growth, but reduced insect herbivory.
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Which of the following statements about steroid receptors is FALSE?
A. The receptors undergo a conformational change after binding the steroid. B. The receptors are localized to the plasma membrane. C. Once the steroid binds the receptor, the steroid/receptor complexes dimerize. D. Steroid receptors act as transcriptional factors, regulating the expression of certain genes and the subsequent production of proteins. E. Steroid receptors are localized to either the cytoplasm or nucleus.
Which species name means “upright man”?
a. Homo erectus b. Homo habilis c. Australopithecus afarensis d. Homo floresiensis e. Neanderthals
Mendel's principle of segregation states that:a
alleles from one parent mask the expression of alleles from the other parent. b. alleles separate from each other before forming gametes. c. hybrids will express a phenotype intermediate between the two parental phenotypes. d. true-breeding parents produce offspring of the same phenotype. e. different loci separate from each other
Mitochondria and chloroplasts of eukaryotic cells are very similar to prokaryotes
Indicate whether the statement is true or false