Comprehension questions:
available in 01: 14
the nucleus contains protons and
neutrons
electrons

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.

According to the cladogram, which organisms have roundworms as a common ancestor?

This is so important ugh its 25 points