Something that "resembles" something else looks like it. The other answer choices mean the following: "tolerate" means allow; "consider" means think about; and "appear" means look a certain way on the surface, often different from how someone or something really is. (For example, someone might say, "Although those flowers may appear harmless, do not touch them: they are poisonous.")

When something occurs "periodically," it occurs regularly in a given period of time. For instance, the periodic swinging of a pendulum is the time that it takes for it to swing back and forth. Likewise, the occurrence of a full moon occurs periodically—according to a fixed period of the moon's orbiting around the earth. By itself, the word "periodically" does not indicate whether or not something occurs frequently, quickly, or rarely. It merely indicates that something happens at regular intervals.

The word "occasionally" is an adverb that could be rewritten, on occasion or on a given occasion. The implication is that it describes something that happens sometimes but not always. It does not necessarily state that it occurs rarely. Likewise, it is not proper to use "occasionally" to indicate that you do something frequently. You wouldn't say, "I occasionally eat asparagus," but actually mean that you eat it every day of the year. To indicate that you eat it every day of the year, you would say, "I always eat asparagus." To say "occasionally" is to indicate that the activity being described is sporadic—now and then, on occasion.

Annually means every year or yearly.

"Seldom" is an adverb that means not happening often. The best choice is "rarely" because it means infrequently and is a synonym of "seldom." Something that seldom happens rarely happens.

Given that Michelle has not been able to commit to a regular exercise regime, the best answer is a word that describes irregularity. "Sporadically" means to do something at inconsistent intervals. Therefore, "sporadically" is the word that best fits the sentence. 

The word "natural" comes from roots related to birth. Something that is "natural" is inborn. Thus, if someone has a naturally happy attitude, that person is happy in an unreflective way. He or she just "is happy"—as though he or she was born that way. The word has taken on the meaning "genuinely" because such a natural disposition is not something that is faked.

An "instant" is a very short period of time. Whenever something happens in a very short time, it happens "instantaneously." This means that it happens almost immediately.

The prefix "in-" here means inside, so the word “interior” means having to do with or located inside of something, making "inside" the correct answer.

The prefix "ex-" can mean out, so it makes sense that "extract" means pull out of someone or something. For example, if one of your teeth became infected, you would probably have a dentist extract the infected tooth—that is, pull it out. Just because "expect" and "extract" both begin with "ex-" doesn't mean they are synonyms—in "expect," the "ex-" isn't functioning to mean out; it just intensifies another root's meaning. (To "inter" something or someone is to bury that thing or person.)

The prefixes "ir-" and "im-" mean not, so it makes sense that "irresponsible" means not responsible and “immature” means not mature. If you are “responsible,” you are mature and dependable. “Immense” means massive or very large. “Immense” is a synonym of “gigantic,” and an antonym of “miniature.” “Gigantic” means very big and “miniature” means very small.