Mr. Marston, a fifth-grade teacher, was told that his students were all "gifted" even though their skills and abilities were identical to that of every other fifth grade class. At the end of the school year his student's test scores were significantly higher than their peers. Developmentalists would describe this phenomenon as:-

Developmentalists would describe this phenomenon as: self-fulfiling prophecy.

Explanation:

Self-fulfiling prophecy is when something is said to happened before hand, and the power of it is that what is been said prior to happening, makes it happened. This means that a belief can influence behavior. The teacher words and believes influenced the behavior of the students.

bacteria – a word that often brings out a sense of uneasiness in most of us are, in fact, one of the earliest forms of life. it can be quite unnerving to know that there are bacteria all over your skin, hair, and even inside the body. but only a few species of bacteria are dangerous. the majority of bacteria are good, and without them, life on earth wouldn’t be possible. let’s learn more about how are bacteria essential for you to survive.

i'll just take the points xd