Glycogen is a polysaccharide that acts as a source of energy storage in animals and fungi. In humans, glycogen is mostly produced and stored...
Ethylene (C2H4) is a hydrocarbon and a simple alkene. It is a natural plant hormone which is used in agriculture to force the ripening of ...
Epithelial tissue, or epithelium, is one of the four types of animal tissues and it lines the cavities and surfaces of structures on the bod...
Heterotrophs are organisms that cannot fix carbon to survive. Animals, fungi, and many bacteria are heterotrophs.
Coevolution is triggered by changes occurring in a related object and it works like a chain of causes and effects. For example, when a prey ...
Animals could adapt in many different ways in order to survive. Some change their appearances, some develop what they already have to increa...
Plants adapt just like animals in order to survive by undergoing changes in their genes. Some plants like cacti have spikes and thorns to wa...
The phloem is the living tissues in plants and it transports nutrients, such as sucrose, to all parts of the plant. In the picture is a tree...
The niche of an organism is its role in the ecosystem which allows the organism to live and contributes to the functionality of the ecosyste...
The endosperm is the tissue that is produced in the seeds of many flowering plants. It is highly nutritious to humans because it could conta...
Homeostasis is the tendency of the internal environment of an organism to remain stable despite the changes in the external environment. For...
Commensalism is type of relationship between two organisms in which one benefits without harming or affecting the other. An example would be...
Predation is a biological interaction involving a predator hunting down and consuming a prey. Both predator and prey may adapt by gaining fe...
Prokaryotes are organisms (mostly unicellular) which lacks a membrane-bound nucleus, lysosomes, an endoplasmic reticulum, and a Golgi appara...
Fermentation is a metabolic process used to produce yogurt, wine, and many other products which occurs when an organism converts a carbohydr...
A unicellular organism only have one cell. Examples of a unicellular organism are bacteria, archaea, protozoa, and prokaryotes. Unicellular ...