Choose the best answer. four major topics written about in nonfiction are:

a. ideas
b. biography or autobiography
c. personal experiences
d. fantasy
e. humor
f. fables

Which of the following is one of the four conditions necessary for natural selection to occur in a population? fewer organisms are born than the habitat can support mutation does not occur organisms have identical characteristics variation is inherited

The body is protected against harmful flu viruses by

Match the description of each organism to the appropriate category