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.
Spores are the reproductive cells for fungi and ferns. They are small and light weight so that they can easily be carried by the wind. In, a spore is a reproductive structure â¦ that is adapted for dispersal and surviving for extended periods of time in unfavorable conditions.A chief difference between spores and seeds as is that spores have very little stored food resources compared with seeds.ngiosperms are  also called anthophytes or magnoliophytes.    The sporophyte is dominant and the gametophyte is the most reduced  of all plants. There are 300 000 so far named angiosperms.  Angiosperms evolved in the Cretaceous. Many have close-bound  mutualisms with pollinating insects.