Answer the following question given this paragraph: Muscle tissue in the walls of internal organs such as the stomach and intestines is smooth muscle . When smooth muscle contracts, it helps the organs carry out their functions. For example, when smooth muscle in the stomach contracts, it squeezes the food inside the stomach, which helps break the food into smaller pieces. Contractions of smooth muscle are involuntary. This means they are not under conscious control. Q: What will the contraction of smooth muscles help organs do? Choices: - fine motor movements - move joints - move across distances - carry out functions A:
carry out functions
Answer the following question given this paragraph: A carcinogen is anything that causes cancer. Most carcinogens produce mutations in genes that control the cell cycle. Q: What is anything that causes cancer called? Choices: - chemical - pesticide - bacteria - carcinogen A:
carcinogen
Q: Answer the following question given this paragraph: Many structures in fish are adaptations for their aquatic lifestyle. For example, fish have a stream-lined body that reduces water resistance while swimming. Q: A fish's stream-lined body that reduces water resistance is an example of what kind of response to an aquatic lifestyle? Choices: - natural selection - retraction - evolution - adaptation A:
A: adaptation
Question: Answer the following question given this paragraph: Energy Requirements Related to Levels of Activity The more active an animal is, the more energy is needed to maintain that activity, and the higher its BMR or SMR. The average daily rate of energy consumption is about two to four times an animal's BMR or SMR. Humans are more sedentary than most animals and have an average daily rate of only 1.5 times the BMR. The diet of an endothermic animal is determined by its BMR. For example: the type of grasses, leaves, or shrubs that an herbivore eats affects the number of calories that it takes in. The relative caloric content of herbivore foods, in descending order, is tall grasses > legumes > short grasses > forbs (any broad-leaved plant, not a grass) > subshrubs > annuals/biennials. Energy Requirements Related to Environment Animals adapt to extremes of temperature or food availability through torpor. Torpor is a process that leads to a decrease in activity and metabolism and allows animals to survive adverse conditions. Torpor can be used by animals for long periods, such as entering a state of hibernation during the winter months, in which case it enables them to maintain a reduced body temperature. During hibernation, ground squirrels can achieve an abdominal temperature of 0 C (32 F), while a bear's internal temperature is maintained higher at about 37 C (99 F). If torpor occurs during the summer months with high temperatures and little water, it is called estivation. Some desert animals use this to survive the harshest months of the year. Torpor can occur on a daily basis; this is seen in bats and hummingbirds. While endothermy is limited in smaller animals by surface to volume ratio, some organisms can be smaller and still be endotherms because they employ daily torpor during the part of the day that is coldest. This allows them to conserve energy during the colder parts of the day, when they consume more energy to maintain their body temperature. Q: Torpor, a process that leads to a decrease in activity and metabolism and allows animals to survive adverse conditions, includes what long winter 'sleep'? Choices: - fermentation - pollination - relaxation - hibernation A:
Answer: hibernation
*Question*
Answer the following question given this paragraph: A wheel and axle is a simple machine that consists of two connected rings or cylinders, one inside the other, which both turn in the same direction around a single center point. When force is applied to the inner axle, the ideal mechanical advantage is less than 1. When force is applied to the outer wheel, the ideal mechanical advantage is greater than 1. Q: What simple machine consists of two connected rings or cylinders, one inside the other, which both turn in the same direction around a single center point? Choices: - pully - bloom and axle - spoke - wheel and axle A:
**Answer**
wheel and axle
Answer the following question given this paragraph: Q: During glycolysis, each glucose molecule is broken down into two molecules of what compound? Choices: - cellulose - sugar - chlorophyll - pyruvate A:
pyruvate