Answer:
It supplies blood to all the organs
Explanation:
The circulatory system is responsible for the circulation of blood and receiving the blood is necessary for all the essential organs. So, the circulatory system supplies blood to all organs.
Answer:
optimum temperature
Explanation:
the embryological and anatomical conditions for human reproduction depends on hormones and enzymes, these enzymes are protein in nature so any alternation in temperature will cause these proteins to be denatured hence compromising reproduction processes in humans.
Water freezes
the rock breaks
Answer:
No
Explanation:
Medications are used for people with for example sleeping problems, not for sickle sells
Answer:
Option). It permits hydrogen bonds between DNA strands to dissociate.
Explanation:
PCR (polymerase chain reaction) techniques can bed defined as a technique, which is used for in vitro amplification of sample DNA. It is made up of three steps, denaturation, primer annealing, and extension.
The first step in PCR is heating of sample DNA to denature the double stranded DNA by breaking hydrogen bonding present between bases of double stranded DNA.
Due to this, double strands of DNA get separated and provide templates for synthesis of daughter DNA strands.
Thus, the correct answer is second option.
