Cyclical means occurring in cycles technically meaning reoccurring.
-56.6 Celsius is approximately the freezing point of carbon dioxide.
Answer: A
Evolution is the idea that species change over time, and natural selection is a mechanism by which evolution takes place.
Answer:
If limestone reacts with limestone, it can turn into a limestone. The reason behind this formation is that, both substances have the same chemical and physical properties and molecules of limestone have a strong chemical bonds between them so it is difficult to separate them from each other.
Cysteine -> cystathionine
