The adult human skeletal system consists of 206 bones, as well as a network of tendons, ligaments and cartilage that connects them. Teeth are made of dentin and enamel and are part of the skeletal system but are not counted as bones.
Advantages-Spores are covered by a hard protective coat which enables them to survive under unfavourable conditions like lack of water and extreme temperatures.But when the conditions are favourable, the spores grow to produce new plants. This help them to run their species at any type adverse condition or environment.Thus the advantage is that despite of unfavourable environment, their species will not be demolished. Disadvantages-spore formation process is quite primitive.ach spore can survive for a long time since it is covered by a hard protective coat to withstand unfavorable conditions such as high temperature and low humidity. A spore germinates under favorable conditions and develops into a new individual. For example, Plants such as moss and ferns reproduce by means of spores.
Fusarium wilt and bacterial wilt are untreatable, fatal fungal diseases that cause cucumber plants to wilt and die. Symptoms may include white mold on the vines, stunted growth and discolored roots. Bacterial wilt is carried by cucumber beetles, which transmit the disease from infected plants to healthy plants. Because fusarium wilt can live in the soil long after the infected plant has been removed, the only way to avoid it is to plant resistant cultivars.