In a boy, the mark of sexual maturation that is most comparable to menarche for a girl is the increment of the penis size, both in length and width, and the enlargement of both the scrotum and testes.
Aside the above mentioned, a boy also begin to have broad chest, and also he becomes more muscular which makes him to be capable to do more physical activities than he could do when he was more younger.
He also experiences rapid hair growth all over his body, more specifically, on his face, chests, legs and around his penis area. He also experience wet dreams whenever he is asleep, thereby ejaculating which connotes the release of some liquid substances called sperm.
For a boy to experience growth in his penis, testes, scrotum, and other physical changes, he must have hit his puberty years, which can be termed as sexual maturation.
Sexual maturation can be referred to stages of pubertal maturity and development that occur in the life of males and females; and are usually characterized by inevitable physical alteration. Recently sexual maturation has been experienced in the life of males and females earlier than it used to occur some decades ago, and this is as a result of improved nutrition, adequate living conditions, and overall human health.
The phloem sap of vascular plants that moves through the phloem; transports nutrients through fungi by hyphae, as a result of turgor pressure. Hyphae are elongated tube-shaped structures that are like garden hoses. They also have inflexible cell walls that may be strengthened by punctured cross-walls which are called septa.
The best explanation for this hypothesis is that increased atmospheric carbon dioxide levels will stimulate plant growth through the process of photosynthesis, in which plants convert carbon dioxide and water into glucose and oxygen.
Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose or other sugars. This process occurs in the chloroplasts of plant cells and involves the conversion of carbon dioxide and water into glucose, using light energy from the sun as the driving force. Oxygen is also produced as a byproduct of photosynthesis.
Photosynthesis can be divided into two stages: the light-dependent reactions and the light-independent reactions. The light-dependent reactions involve the conversion of light energy into chemical energy in the form of ATP and NADPH. These reactions occur in the thylakoid membranes of the chloroplasts, where pigments such as chlorophyll absorb light energy. The light-independent reactions, also known as the Calvin cycle, involve the use of ATP and NADPH to convert carbon dioxide into glucose.
Photosynthesis is an essential process for all plants, as it provides them with the energy they need to grow and thrive. It is also an important process in the global carbon cycle, as it removes carbon dioxide from the atmosphere and converts it into organic matter.
Learn more about photosynthesis, here:
Answer : The correct answer is, Sublimation and Melting process.
So, there are two processes in which changes of state of atoms that cannot move past one another become free to move which are sublimation and melting process.
Sublimation : It is a process in which a solid directly changes to gaseous phase.
Melting : It is process in which a solid changes into liquid phase by providing heat.
The correct sequence of events are: Ingestion - Digestion - absorption - assimilation
Ingestion: It is the process of taking either solid or liquid food through mouth or oral cavity.
Digestion: It includes the digestive system which consists of alimentary canal and the associated glands. These glands help in the digestion of food. Alimentary canal starts with mouth and opens outside through anus. Complete digestion of food occurs in small intestine.
Absorption: Once the food is completely digested in small intestine it must be absorbed across the intestinal wall into the blood stream or lymph.
Assimilation: The absorbed substance then finally reaches the tissues which utilizes them for activity.