Karis studied for 30 minutes for her first test. She had her cell phone on as usual and checked her cell phone several times during the 30 minutes. She made an F
on the test and her mom took her cell phone away. Poor Karis. The second test,
she again studied for 30 minutes but did not have her cell phone at all. She made
an A. Her mother was so happy, she gave Karis her phone back. Karis studied for
her third test for 30 minutes. She had her cell phone with her again. Karis made a
D on her test.
1. What is the control group?
2. What is the experimental group?
3. What is the independent variable?
4. What is the dependent variable?
5. What were the constants?

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

Astudent completed a lab report. which correctly describes the difference between the “question” and “hypothesis” sections of her report? “question” states what she is asking, and “hypothesis” states the result of her experiment. “question” states what she is asking, and “hypothesis” states what she thinks the answer to that question is in “if . . then . . because” format. “question” describes what she is trying to find out, and "hypothesis" states the procedures and methods of data collection. “question” describes what she is trying to find out, and “hypothesis” states any additional information or prior knowledge about the question.

Which of these factors best explains why liquid exists on earth