Answer:
The temperature is kept at room temperature and mostly preferred to be constant, so that the temperature does't be a variable factor effecting the accuracy of experiment.
Temperature is kept constant to take it as a control factor, so that experimental results are not effected by such outside factors. Such control variables are important in experiments as they minimize the influences from outside.
Answer:
Brian feels that no matter what he does, he will not be good at math because he was born without strong math skills. Brian is demonstrating <u>the entity theory of intelligence</u>, which MOST likely will reduce his ability to learn.
Explanation:
The entity theory of intelligence refers to an individual's belief that intelligence and ability are fixed traits. For entity theorists, if perceived ability to perform a task is high, the perceived likelyhood for mastery is also high.
The answers are DNA and Nucleus
