Which of the following statements is correct? the heart is posterior to the spine. the sternum is posterior to the spine. the heart is dorsal to the sternum. the sternum is dorsal to the spine.

The heart is dorsal to the sternum

Explanation:

Dorsal means the back end of something. The sternum is the breast bone on which the ribs are attached. Therefore the heart is behind (dorsal) the chest bone and in front (ventral) to the spine. Dorsal is derived from the Latin word ‘dorsum’ – meaning ‘back’- while ventral is from Latin word ‘venter’ – meaning ‘belly’.

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: