PLEASE HELP EMERGENCY!! IF YOU ARE NOT 100% SURE ABOUT YOUR ANSWER DO NOT ANSWER THEN!! PLEASE!!

Biology

2 answers:

Lana71 [14]3 years ago

7 0

Answer:

ik the answer and it is the second one im positive abt this!!

Elena-2011 [213]3 years ago

4 0

Answer:

breaks nutrients down to be absorbed and used for energy, growth, and cell repair

Explanation:

This is the right answer because one, the skeletal system protects your organs and it supports it also. Two, the respiratory make sure you breathe throughout the body. And three, the hormones are in the Nervous system where you can quickly respond to whether something is hot or cold, sharp or smooth. This answer may or may not be right but this is for me the right answer.

You might be interested in

Which step can occur even more rapidly by PCR?a. target DNA removed from cells and isolated b. cloning host treated with calcium

lisabon 2012 [21]

Answer:

E. Gene is amplified by multiplication of cloning host

Explanation:

PCR is a very powerful technique that can help us to amplify exponentially one gene from a very small sample of DNA.

As seen in the attached image, the process begins with a single DNA molecule, for the first cycle, that DNA molecule denaturalizes into two strands, the primers bind to their complementary sides and then the DNA polymerase builds the new DNA strands. The number of copies of the gene that can be obtained with each cycle are 2ⁿ copies, where n is the cycle number.