in an isotonic solution, what happens
What will be an ideal response?
no change
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Transformation is defined as the:
a. change of the bacterial genotypes through the exchange of DNA from one cell to another. b. internal change in the original nucleotide sequence of a gene or genes within an or-ganism's genome. c. process by which genetic elements such as plasmids and transposons excise from one genomic location and insert into another. d. uptake of free DNA from the environment and recombination with the recipient's homologous DNA.
What is formed between the two nucleoids created during binary fission?
a. septum b. cell plate c. cleavage furrow d. fissure
If the woman does not become pregnant the _____ will not produce progestrone and it will break down.
Fill in the blank(s) with the appropriate word(s).
Why do cigarette smokers cough more than most people do?
A) The tar in cigarette smoke tends to make alveoli stick closed. Coughing opens them. B) Coughing is the respiratory system's attempt to clear itself of the thick mucus that is produced in response to smoke exposure. C) Cigarette smoking partially paralyzes the lungs; coughing exchanges the resultant "dead air." D) Coughing stimulates blood flow to the lungs.