The function of the somatic nervous system includes all nerves controlling the muscular system and external sensory receptors.
Answer:
Rubella
Explanation:
Rubella is an infectious disease caused by a virus referred to as rubivirus, which can be spread from pregnant women to their unborn children through the bloodstream. During the first trimester of pregnancy, rubella can cause the death of the developing fetus (i.e., miscarriage) or serious birth defects such as, for example, heart defects, cataracts, deafness, mental incapacities, etc. Rubella symptoms include, among others, rash, joint pain, swollen lymph glands (especially behind the ears), headache, and mild fever.
Answer:
A number of reactions may occur simultaneously in groundwater and cement-based materials, including the dissolution of portlandite that is generated from the intrusion of hydrogen ion, the increase of the concentration of calcium in the pore solution, formation of ettringite by sulfate attacking the cement, and the dissolution of Calcium–Silicate–Hydrate (CSH) gel by chloride entering the cement, and the formation of Friedel’s salt
Explanation:
Short answer - to breathe.
Long answer - the black streaks on the trunk of birch trees are called lenticels, and their function is to enable the exchange of gases between the tree and the air. So, in a way, this makes the whole process of photosynthesis a lot easier for birch trees.