1.) which cell organelle contains rrna?

select one:
a. cell membrane
b. ribosomes
c. mitochondria
d. nucleus

2.) which of these is the basis of most cell functions?

select one:
a. lipids
b. nucleic acids
c. carbohydrates
d. proteins

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca

How do the evolutionary chart and the video support the claim that all living things are made up of cells?