(02.01 MC)Which of the following best describes what causes water molecules to exhibit properties such as cohesive and adhesive behavior?

(01.01 HC)In a magazine advertisement, a manufacturer claims its laundry ball, which contains ceramic pellets, gets clothes clean by changing the pH of the water. The ad claims the product reduces wear on their clothing, contaminants in the environment, and the cost of doing laundry. What should the advertisement include to give a consumer more confidence in this product’s claims?

(03.01 MC)During which stage of the cell cycle does the cell condense chromosomes and break down the nuclear envelope?

(03.01 MC)During which stage of the cell cycle does the cell condense chromosomes and break down the nuclear envelope?

(02.06 LC)Which process occurs during a light-independent reaction?

(02.04 MC)The diagram below shows a cell placed in a solution.What will most likely happen to the cell?

(01.03 MC)One explanation of life’s origins suggests that meteorites gave way to life on Earth. Which of the following provides evidence to support this idea?

(03.04 MC)If an individual is trisomic for chromosome 21, resulting in Down syndrome, and has an extra chromosome in each cell, what mutation must have occurred?

(03.01 LC)While some mutations can benefit an organism, others are harmful and can lead to cancer. Which of the following best describes how mutations can cause cancer in an organism?

(01.01 HC)Several groups of researchers conducted experiments to study how students’ diets affected their performance in school. Researchers asked students to record what they ate every day for a year. The findings suggested that students who ate a higher amount of vegetables as compared to protein tended to have better grades. What can the researchers validly claim based on these findings?