Answer the following question given this paragraph: During adulthood, testosterone is needed for the production of sperm. Q: During adulthood, what is needed for the production of sperm? Choices: - steroids - estrogen - androgen - testosterone A:
testosterone
Answer the following question given this paragraph: 4.2 Prokaryotic Cells Prokaryotes are predominantly single-celled organisms of the domains Bacteria and Archaea. All prokaryotes have plasma membranes, cytoplasm, ribosomes, and DNA that is not membrane-bound. Most have peptidoglycan cell walls and many have polysaccharide capsules. Prokaryotic cells range in diameter from 0.1 to 5.0 m. As a cell increases in size, its surface area-to-volume ratio decreases. If the cell grows too large, the plasma membrane will not have sufficient surface area to support the rate of diffusion required for the increased volume. Q: As the prokaryotic cell size increases, what happens to its surface area-to-volume ratio? Choices: - stagnates - halts - increases - decreases A:
decreases
Q: Answer the following question given this paragraph: Immune system organs include bone marrow, the thymus gland, the spleen, and the tonsils. Each organ has a different job in the immune system. Q: Bone marrow, the thymus gland, the spleen, and the tonsils are organs in what body system? Choices: - skeletal system - nervous system - reproductive system - immune system A:
A: immune system
Question: Answer the following question given this paragraph: The sodium chloride dissociates into two ions, while the glucose does not dissociate. Therefore, equal concentrations of each solution will result in twice as many dissolved particles in the case of the sodium chloride. The vapor pressure of the sodium chloride solution will be lowered twice the amount as the glucose solution. Q: How many different kinds of ions are produced when sodium chloride dissociates ? Choices: - five - one - three - two A:
Answer: two
*Question*
Answer the following question given this paragraph: Electrons are located at fixed distances from the nucleus, called energy levels. You can see the first three energy levels in the Figure below . The diagram also shows the maximum possible number of electrons at each energy level. Q: Electrons are located at fixed distances from the nucleus, what are they called? Choices: - Energy layers - Positive levels - energy concentrations - energy levels A:
**Answer**
energy levels
*Question*
Answer the following question given this paragraph: The enormous number of species is due to the tremendous variety of environments in which they can live. Q: The enormous number of species is due to the tremendous variety of what? Choices: - tissues - sounds - measurements - environments A:
**Answer**
environments