Nucleus Important organelle in eukaryotic cells, consists of two membranes with a space between them and containing pores. It has two basic functions: regulating the chemical reactions that take place within the cell, and storing the cell's genetic information. Inside are distinguished nucleolus and chromatin.
In addition to the cardiovascular (circulatory) system for blood circulation, the human body has another fluid flow system: the lymphatic system. The lymphatic system comprises the set formed by the lymph, the lymphatic vessels and organs such as the lymph nodes, the spleen, the thymus and the palatine tonsils.
The animal kingdom is really fascinating. There are millions of species of animals on the planet, and many of them we don't even know exist either because they are endangered or far from our eyes. It is always good to know a little more about these species, how they live, where they can be found and how they behave in nature.
& Ldquo; The belief that species were immutable products was almost inevitable while the history of the world was considered to be short-lived… The main cause of our reluctance to admit that one species originated in clear and distinct species is that we are always slow to admit big changes that we do not see the steps ”.
Intensity - is the quality that distinguishes between strong and weak sound. It depends on the amplitude of vibration: the higher the amplitude the stronger the sound and vice versa. In practice we do not use sound intensity units, but sound intensity level units, a quantity related to the sound intensity and the way our ears react to that intensity.
Tomatoes grow on the earth and potatoes in the roots. Product is the result of grafting as crossbreeding is not possible. British company Thompson & Morgan has launched a plant that produces potatoes and tomatoes called Tomtato. According to a video from the company published on the internet, the vegetable can produce up to 500 cherry tomatoes "sweeter than anyone who can be bought at the supermarket", besides potatoes, in the roots.