Q: Q: What is a benefit of low sulfur coal over high sulfur coal? Read this paragraph and choose the correct option from the provided answers: Low sulfur coal produces less pollution when burned than high sulfur coal. Name one factor that affects the sulfur content in coal. Choices: - greater enerty - lower cost - less erosion - less pollution A:
A: less pollution

Q: Q: The average number of individuals per unit of area can be expressed as what? Read this paragraph and choose the correct option from the provided answers: Population density just gives the average number of individuals per unit of area or volume. Often, individuals in a population are not spread out evenly. Instead, they may live in clumps or some other pattern (see Figure below ). The pattern may reflect characteristics of the species or its environment. Population distribution describes how the individuals are distributed, or spread throughout their habitat. Choices: - the percent of population - percent density - total density - population density A:
A: population density

Q: Q: What term means the adjusting of systems within a cell in order to restore balance or maintain equilibrium? Read this paragraph and choose the correct option from the provided answers: Homeostasis refers to the balance, or equilibrium, within the cell or a body. It is an organism's ability to keep a constant internal environment. Keeping a stable internal environment requires constant adjustments as conditions change inside and outside the cell. The adjusting of systems within a cell is referred to as homeostatic regulation. Because the internal and external environments of a cell are constantly changing, adjustments must be made continuously to stay at or near the normal proportions of all internal substances. This involves continual adjustments in transport of substances across the cell membrane. Homeostasis is a dynamic equilibrium rather than an unchanging state. The cellular processes discussed in the cell transport (passive and active transport) concepts all play an important role in homeostatic regulation. Choices: - systemic regulation - aftertouch regulation - gaseous regulation - homeostatic regulation A:
A: homeostatic regulation

Q: Q: Force times distance is the equation for what? Read this paragraph and choose the correct option from the provided answers: Work is directly related to both the force applied to an object and the distance the object moves. It can be represented by the equation: Work = Force Distance. Choices: - power - speed - gravity - work A:
A: work