Answer:
Respiratory system and circulatory system.
The respiratory system allow living things to obtain oxygen from the air while the circulatory system allows oxygen to be carried around the body.
A nucleotide consists of all of the following except a nitrogenous base. The are of course the main building blocks of genetic information in many life forms.
Tundra
Tundra is a biome that is located in the coldest regions of the world. This is characterized by short growing seasons and low temperatures. The plants growing in these regions are short perennials.
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Answer:
It contains enzymes that can break down intracellular waste to a certain degree it is responsible for some metabolic process like ATP production via glycolysis finally it aids the cytoskeleton/microfilaments in give the cell and its organelles stability/support.
the frog is now a predator
