You have observed water going into and out of the cell? Into which organelle is the water moving in and out of? How many membranes will the moving water cross?

Which prevent errors in dna replication? a. helicase enzyme checks the dna for errors. b. each base can attach to only one other type of base. c. ribosome enzymes prevent errors from happening. d. dna contains no complementary base pairs.

Rue or false siblings look simila rbecause they each have some traits of their parents.

What is the difference between an igneous, sedimentary and metamorphic rock