input with options: Answer the following question given this paragraph: All objects in the universe have a gravitational attraction to each other ( Figure below ). The strength of the force of gravity depends on two things. They are the mass of the objects and the distance between them. The greater the objects' mass, the greater the force of attraction. As the distance between the objects increases, the force of attraction decreases. Q: The mass of the objects and the distance between them affect the strength of what universal force? A:
OPTIONS:
- states of matter
- weight
- motion
- gravity
output: gravity

Q: Answer the following question given this paragraph: After food is digested, the resulting nutrients are absorbed. Absorption is the process in which substances pass into the bloodstream, where they can circulate throughout the body. Absorption of nutrients occurs mainly in the small intestine. Any remaining matter from food that cannot be digested and absorbed passes into the large intestine as waste. The waste later passes out of the body through the anus in the process of elimination . Q: What is the process called in which nutrients pass into the bloodstream? A:

OPTIONS:
- accumulation
- accumulation
- incorporation
- absorption

A: absorption

input: OPTIONS:
- external thermostat
- mechanical thermostat
- sensitive thermostat
- internal thermostat Now, answer this question: Answer the following question given this paragraph: For example, your body has an internal thermostat. During a winter day, in your house a thermostat senses the temperature in a room and responds by turning on or off the heater. Your body acts in much the same way. When body temperature rises, receptors in the skin and the brain sense the temperature change. The temperature change triggers a command from the brain. This command can cause several responses. If you are too hot, the skin makes sweat and blood vessels near the skin surface dilate. This response helps decrease body temperature. Q: Like a house, your body has what kind of mechanism that responds to changes in temperature? A:
A:
output: internal thermostat

Answer the following question given this paragraph: Q: When egg laying and mating occur together, as in external fertilization, the certainty of what is high? A:

OPTIONS:
- germination
- survival
- high reproduction rate
- paternity

Answer: paternity

Problem: OPTIONS:
- intestines
- skin
- eggs
- blood stream
Q: Answer the following question given this paragraph: Other modifications that reduce weight include the lack of a urinary bladder. Birds possess a cloaca, a structure that allows water to be reabsorbed from waste back into the bloodstream. Uric acid is not expelled as a liquid but is concentrated into urate salts, which are expelled along with fecal matter. In this way, water is not held in the urinary bladder, which would increase body weight. Most bird species only possess one ovary rather than two, further reducing body mass. The air sacs that extend into bones to form pneumatic bones also join with the lungs and function in respiration. Unlike mammalian lungs in which air flows in two directions, as it is breathed in and out, airflow through bird lungs travels in one direction (Figure 29.32). Air sacs allow for this unidirectional airflow, which also creates a cross-current exchange system with the blood. In a cross-current or counter-current system, the air flows in one direction and the blood flows in the opposite direction, creating a very efficient means of gas exchange. Q: Birds possess a cloaca, a structure that allows water to be reabsorbed from waste back into this? A:
Answer: blood stream

Answer the following question given this paragraph: 40.4 | Blood Flow and Blood Pressure Regulation By the end of this section, you will be able to: Describe the system of blood flow through the body Describe how blood pressure is regulated Blood pressure (BP) is the pressure exerted by blood on the walls of a blood vessel that helps to push blood through the body. Systolic blood pressure measures the amount of pressure that blood exerts on vessels while the heart is beating. The optimal systolic blood pressure is 120 mmHg. Diastolic blood pressure measures the pressure in the vessels between heartbeats. The optimal diastolic blood pressure is 80 mmHg. Many factors can affect blood pressure, such as hormones, stress, exercise, eating, sitting, and standing. Blood flow through the body is regulated by the size of blood vessels, by the action of smooth muscle, by one-way valves, and by the fluid pressure of the blood itself. Q: What blood pressure reading measures the pressure in the vessels between heartbeats? A:

OPTIONS:
- metabolic
- plasma
- systolic
- diastolic

Answer:
diastolic