Proteins are A) built in the nucleus by DNA and transported to the ribosomes.

B) converted from nucleic acids to amino acids in the nucleolus.

C) made on ribosomes and then transported to golgi appartus.

D) created in the nucleus and then shipped to the parts of the cell where they are needed

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

Stage in which a typical star has completely stopped fusion