After about seven days after conception, what happens to the zygote is that it attaches itself to the lining of the uterus. when it does this, it is referred to as a blastocyst,
The tide comes in and out two times a day
Yes, that is true. What is your question?
Answer:
Option C. is correct.
Explanation:
According to Chargaff's rules, DNA (Deoxyribonucleic Acid) from any species of an organism should have purine and pyrimidine bases in the ratio 
This ratio is very important for solving the structure of DNA.
As per this rule, DNA is double-stranded, and covalent bonds between identical nucleotides hold the strands together.
So, Option C. is correct.
I believe it is a process used by plants<span> in which </span>energy<span> from </span>sunlight<span> is used to convert carbon dioxide and water into </span>molecules<span> needed for growth. </span>These molecules<span> include sugars, enzymes and chlorophyll. Light </span>energy<span> is absorbed by the green chemical chlorophyll.</span>
