The ligament. skull, and vertabre
Answer:
A. keeping the strands separated during replication
Explanation:
Prior to the process of DNA replication, the double-stranded DNA must first be separated into single strands by an enzyme called DNA helicase. This is done so that each DNA strand can serve as template for the synthesis of another.
After the unwinding and separation, the single strands still need to be kept apart during the synthesis of new nucleotides by DNA polymerase. This role of keeping the strands separated during replication is carried out by SINGLE STRAND BINDING PROTEINS.
Producers have greatest amount of energy content among all trophic levels.
Regards
BLACKSHARK
You didn't give the options for "which" but I assume your multiple choice questions will all be environmental factors that can cause mutations. To pass on to offspring, any mutation in the gametes or a chromosome may cause a mutation in the offspring.