What is the purpose of the quotation in the first paragraph

Which of the following is an essential element of a strong informative/explanatory text? a. it expresses an opinion on a topic. b. it has a clear organizational structure. c. it uses text features, such as headings. d. it includes graphic elements, such as images.

During sensitive periods of brain development like cell migration the brain is vulnerable to effects like: a. malnutrition b. infection c. toxins /drug use d. b and c e. all of the above

Which line from the text provides specific support for the idea that mantids are excellent hunters? a) first, mantids show an amazing mastery of hunting skills. b) mantids eat a wide variety of insects, including moths, crickets, bees, flies, and grasshoppers. c) they have large, powerful front legs, with spikes that them hold on to prey. d) finally, they are very personable, as far as insects go. (language arts)