Q: Urea, ammonia and uric acid are types of what waste, excreted in different forms by different species? Choices: - fecal waste - methane waste - carbon waste - nitrogenous waste A:
nitrogenous waste

Q: How do all musical instruments create sound? Choices: - condensation - stimulation - conduction - vibration A:
vibration

Q: Q: What is the term for a cross in which the inheritance of two characteristics are tracked at the same time? Choices: - fraternal - identical twin - Mendelian - dihybrid cross A:
A: dihybrid cross

Question: Q: What do you call the membrane-bounded droplets that have some properties of cells? Choices: - rods - membranes. - sporozoans - protocells A:
Answer: protocells

*Question*
Q: Along with changes in the shape of the resonant cavity, growth of what organ in pubescent boys leads to the difference in predominant frequencies in speech between men and women? Choices: - pharynx - trachea - esoophagus - larynx A:
**Answer**
larynx

(Q).
Q: What is pressure times area equal to? Choices: - volume - mass - density - force A:
(A).
force