Answer:
The external skeleton of arthropods is a highly efficient system for small animals. The exoskeleton provides a large surface area for the attachment of muscles and, in addition to functioning in support and movement, also provides protection from the external environment.
Explanation:
Good Night fam
Its is already a balanced equation so the option a.1 would fill in for the blank.
Answer:
The need for continental time zones stemmed directly from the problems of moving passengers and freight over the thousands of miles of rail line that covered North America by the 1880s. Since human beings had first begun keeping track of time, they set their clocks to the local movement of the sun.
Answer:
The correct option is C. Spine is present on the posterior surface of the scapula
Explanation:
The scapula is a triangular bone that joins humerus with the clavicle.
The landmarks present on the posterior surface of the scapula are:
1. Spine: The spine of the scapula divides it into two parts.
2. Acromion: This is the landmark that connects with the clavicle.
3. infraspinous fossa: This landmark is present underneath the spine and the infraspinatus muscle is located here.
4. Supraspinous fossa: It is the landmark that is situated on top of the spine.
