The cycling of nutrients from rocks to soil to plants and back to the soil via decomposition occurs in which level of ecological organization?
What will be an ideal response?
Ecosystems
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Which one of the following controls drives, instincts, and emotion?
A. thalamus B. cerebrum C. limbic system D. cerebellum
Freshwater flatworms have this type of system for osmoregulation.
A. protonephridial B. metanephridial C. osmonephridial D. eunephridial E. isonephridial
If a eukaryotic cell divided by binary fission,
a. only one of its offspring would get the nucleus. b. only one of its offspring would get a complete cytoplasm. c. only sperm would be produced. d. only eggs would be produced. e. the chromosome number would be halved.
Southern blotting is a process where ____ is transferred from a gel to a ____where a probe can be applied
a. DNA; water solution b. protein; water solution c. DNA; nitrocellulose filter d. RNA; nitrocellulose filter e. protein; nitrocellulose filter