What is the difference between a prerequisite and a corequisite? a. A prerequisite must be taken before another course; a corequisite and another course must be taken together.
b. A prerequisite is a course that must be taken before applying to college; a corequisite is a course taken in the first term.
c. A prerequisite is a course that everyone is required to take regardless of major; a corequisite
d. A prerequisite is required, but no credits are earned; a corequisite is required, and credits are earned.

a. A prerequisite must be taken before another course; a corequisite and another course must be taken together.

Explanation:

A prerequisite to calculus is precalculus since you must take precalculus before calculus. The "pre" indicates "before".

As for corequisite, you could have a biology course and a lab that goes with it. Though usually labs are considered part of the class. It will depend on how the course is structured.

Another example of corequisite classes could be taking a statistics course focused on psychology majors and also some other psychology course dealing with sampling techniques.

The "co" means "together".

climax

after following, but not really , the young hunter on his search for the heron, sylvia slips out of bed alone in the middle of the night to find the heron for herself. perched at the top of a gigantic pine tree, sylvia spots the heron, and its nest, in a dead hemlock tree across the way. the following morning she returns home to find her grandmother and the hunter waiting for her at the door. in the moment when she plans to tell the hunter where to find the heron, she suddenly decides to protect the heron and remain silent; even the promise of much needed money does not sway her.

explanation:

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.