Which two systems will work together to control the responses of the internal organs to stimuli?

endocrine and muscular system

nervous and cardiac systems

urinary and skeletal

nervous and endocrine systems

What is the role of the enzyme ligase in DNA replication?

It seals any breaks in the sugar$-$phosphate backbone.

It breaks the hydrogen bonds that hold the two strands of the DNA together.

It folds the DNA into a coiled structure.

It matches new bases to the old strand by complementary base pairing.

thunzips the double$-$stranded DNA.

uestion $43$

$1$ pts