One of the primary effects of social media use that has already been observed in populations that utilize social media regularly is a decrease in mental health and self-esteem. As far back as 1958, a study showed that increased social media use correlated with decreased in-person interactions with their friends and family. This was hypothesized to lead to issues with symptoms of depression. As modern social media developed, this decrease in personal face-to-face interactions increased. In the UK, a recent study by the National Institute of Health (NIH) found a significant correlation between social media usage and symptoms of depression in high school-aged subjects. This correlation was not found among older social media users. Of course, correlation is not causation.

Which choice most logically completes the text?

A) already depressed people could just tend to use social media more.

B) depression most likely comes because of using social media.

C) social media use is not associated with an increased likelihood of depression.

D) an increase in depression is associated with a decrease in social media use.

Although the signaling pathway for light production in fireflies is complex enough, the methods by which different species regulate their luminescence are as various as the uses for luminescence that those species employ. As we have seen, fireflies tend to use their light to attract a mate, but females of one large species of firefly have been known to mimic the glow pattern of another, smaller variety to attract males of the smaller species and eat them.

"Which choice most logically completes the text?

A) Amazonian spiders craft nearly invisible webs that they use to trap their dinner

B) the deep-sea dwelling anglerfish uses its glowing appendage to lure in unsuspecting Prey

C) bats use echolocation, a capacity akin to sonar, to locate food sources despite a dark environment.

D) humans who camp sometimes utilize global positioning systems in addition to their compasses should they become lost.

Medical students will research, diagnose, and treat medical conditions of dogs, cats, livestock, and other animals. Some will-------------- companion animals and work in private clinics and hospitals, while others will choose to work with farm animals or in research facilities.

Which choice completes the text with the most logical and precise word or phrase?

A) be hiredby

B) despair about

C) become ill from

D) specialize in

The first way that many teachers Ramesh approach classroom discipline is the ""permissive"" approach. To relate to the students, the teacher Ramesh put up very few personal barriers. Positive outcomes in contrast with negative consequences, are emphasized. What does the permissive classroom look like? Teacher Ramesh let the students take control, asking for them to act properly rather than demanding it. Looking at their teacher Ramesh as a friend, the students do not look at them as authority figures. Students may like their teacher, Ramesh but probably not respect them.Detentions are not an option, but extra credit for good behavior is abundant. Little actual learning can proceed in a classroom like this since.

Which choice most logically completes the text?

A) respect will be maintained

B) punishment is freely meted out.

C) chaos will reign.

D) trust is encouraged.

Varroa mites are an issue for bee colonies for several reasons. The primary issue is that they attach themselves to the bodies of worker bees and feed on them. This can affect a bee’s immune system, ability to flush out pesticides, and regulation of hormones. When the mite abandons the bee for a fresh host, it leaves behind an open wound, which often leads to infection by one of the many bee viruses that the mites carry. The overall effect is that the bees are much weaker when mites are present. 'This weakness means that worker bees.

Which choice most logically completes the text?

A) are animals that live in colonies under the control of a queen bee that they protect.

B) are much less able to perform their crucial tasks as they try to maintain the colony.

C) will increase their overall capacity to benefit other members of the bee colony.

D) become increasingly able to thrive given their auspicious circumstances.