Question 87

To gradually develop

The term 'evolved' in the context of the extract refers to the gradual development of systems in the body that have adapted over time to maintain essential functions and processes, including blood pressure regulation.

A) To spread

This option is incorrect as 'to spread' implies a physical expansion or distribution, which does not align with the concept of gradual development over time that the term 'evolved' conveys in the context of biological systems.

B) To gradually develop

This option is correct because 'evolved' denotes a process of gradual development and adaptation, particularly in the context of the body's cardiovascular system and its regulators, as described in the extract.

C) To revolve

This option is incorrect as 'to revolve' means to move in a circular motion or to rotate, which is unrelated to the idea of development or adaptation inherent in the concept of evolution.

D) To shift

This option is also incorrect because 'to shift' suggests a change in position or direction, but it does not capture the gradual, developmental aspect of 'evolved' as used in the extract.

Conclusion

The correct answer, 'to gradually develop', accurately reflects the meaning of 'evolved' in the context of the extract, emphasizing the adaptive nature of the body's systems. All other options fail to capture the essence of slow and progressive change that characterizes evolution.