Which characteristic is unique to eukaryotic cells compared to prokaryotic cells?

Which organisms perform cellular respiration?  

A typical adult female is asked to increase her fundamental frequency from 220 Hz to 330 Hz, and she can easily accomplish this task. When comparing her vocal production at 330 Hz to 220 Hz, we will observe changes in her mean airflow rate and subglottal pressure (Psub). Which of the following statements are true? (Select up to two options; partial credit will be awarded for correct selections.)

Which of the following statements are true about a normal adult’s source? (Select up to two options; partial credit will be awarded for correct selections.)

What structure is the building block of proteins?

A normal adult female is asked to perform two activities: first, phonate /a/ at her usual fundamental frequency (approximately 210 Hz) and typical loudness for 10 seconds; and second, increase her fundamental frequency to 450 Hz. Based on this scenario, which of the following statements are TRUE? (Select up to four options; partial credit will be awarded for correct selections.)

If a cell has a salt concentration of 2%, what must be the percentage of salt outside the cell, if when placed into the solution, the cell fills with water?

A 22-year-old male is referred for a speech-language pathology (SLP) evaluation with the primary complaint that his voice sounds feminine. An evaluation by an ear, nose, and throat (ENT) specialist reveals no anatomical abnormalities in the laryngeal system, periodic vocal fold vibrations, and no medical conditions contributing to a high-pitched voice. During your perceptual voice assessment, you observe that his voice is high-pitched, has near-normal loudness, and a normal quality with no breathiness or harshness. Based on these findings, which TWO of the following are the most likely explanations? (Select up to two options; partial credit will be awarded for correct selections.)

Which of the following is not a possible gamete from the following genotype: XxYyZZ

Brown eyes (B) are dominant to blue eyes (b). If two heterozygous parents are crossed, what is the probability that their child will have blue eyes? (Assume autosomal, complete dominance inheritance). Create a Punnett square to support your answer.