Which structure is the site of the synthesis of proteins that may be exported from the cell?
A) rough ER
B) plasmodesmata
C) Golgi vesicles
D) free cytoplasmic ribosomes
A
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Below are partial results of chemical sampling of one stream. What do these results tell you about the suitability of this stream as fish habitat? What are likely causes for these values?
What will be an ideal response?
All arteries, with the exception of the __________, contain oxygen-rich blood
a. aorta b. carotid arteries c. coronary arteries d. pulmonary arteries e. mesenteric arteries
Tropical forests are known for
A. their high diversity relative to other forests. B. their abundance of large mammals relative to other forests. C. high temperatures relative to other forests. D. their high diversity relative to other forests and high temperatures relative to other forests. E. their high diversity relative to other forests, their abundance of large mammals relative to other forests, and high temperatures relative to other forests.
Microspore mother cells produce microspores. What do microspores then develop into?
A. egg cells B. pollen grains C. synergids D. endosperm E. megaspores