Mitochondria probably developed before the atmosphere was oxygen rich
Indicate whether the statement is true or false.
ANSWER: False - after
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Match the kind of plastid with its function.
A) chromosome movement B) flower color C) plastid precursor D) nucleic acid production E) lipid storage F) starch storage G) protein production H) chloride storage I) photosynthesis J) protein storage 1) proplastid 2) amyloplast 3) chloroplast 4) chromoplast 5) elaioplast
Would babies need to be immunized against lockjaw (tetanus) if their mother had been immunized against the disease? Why or why not?
A. No-because the mother's IgG antibodies would be passed along through the placenta before birth, protecting the baby from the infection. B. Yes-because even though maternal IgG antibodies might be passed along through the placenta, they will not last forever. The baby will need to create its own antibody response to be protected against future tetanus. C. No-because maternal IgG antibodies would be passed along in the breast milk, protecting the baby from infection. D.
Members of the ____ lineage, commonly called chitons, have a dorsal shell divided into eight plates that allow it to
conform to irregularly shaped surfaces.
a. Cephalopoda b. Polyplacophora c. Platyhelminthes d. Gastropoda e. Scaphopoda
Oxygen is transported through the body mostly ________
A) dissolved in the blood B) dissolved in red blood cells C) bound to hemoglobin D) bound to dissolved iron