1.write in detail about rib cage and shoulder bone .
2.discuss about terrestrial habitat and their adaption.
3.write about the types of objects with example.
detail any two questions answer please it is urgent
Answers
1. Ribcage consists of 12 pairs of ribs. It protects heart, lungs, diaphragm. It plays important role in respiration.
Answer:
1. RIB CAGE- Rib cage consists of 12 pairs of ribs, sternum, xiphoid process, costal cartilages and 12 thoracic vertebrae. It protects heart, lungs and diaphragm. It provides a framework on which the muscles of the shoulder girdle, chest, upper abdomen and back can attach. It also plays important role in the respiration.
SHOULDER BONE- The shoulder joint (glenohumeral joint) is a ball and socket joint between the scapula and the humerus. It is the major joint connecting the upper limb to the trunk. It is one of the most mobile joints in the human body, at the cost of joint stability.
2. The animals, which live on land and do their biological activities on land, are called terrestrial animals. Cursorial animals are those animals which live in open places and are adapted to run on hard ground. Fossorial animals are those animals which are adapted for burrowing mode of life e.g. rabbit, rat, etc.
3. There are three kinds of object: Direct Object (e.g., I know him.) Indirect Object (e.g., Give her the prize.) Object of a Preposition (e.g., Sit with them.)