What part of the brain is responsible for aggression? amygdala How does the amygdala affect aggression? The amygdala has been shown to be an area that causes aggression. Stimulation of the amygdala results in augmented aggressive behavior, while lesions of this area greatly reduce one’s competitive drive and aggression. Another area, the hypothalamus, is believed […]

What is the reproductive organ of the plant that produces seeds? carpels What parts of a flower are involved in reproduction? As a plant’s reproductive part, a flower contains a stamen (male flower part) or pistil (female flower part), or both, plus accessory parts such as sepals, petals, and nectar glands (Figure 19). The stamen […]

How do harsh winters affect rabbits? 5. Predict: Rabbits reproduce in the spring. How do you think a period of cold springs will affectthe rabbit population? A period of cold springs will reduce the rabbit population because the rabbits will not be as active, and the food supply will be reduced. How would a harsh […]

What does the hanging wall do in a reverse fault? Hanging wall and footwall These terms are important for distinguishing different dip-slip fault types: reverse faults and normal faults. In a reverse fault, the hanging wall displaces upward, while in a normal fault the hanging wall displaces downward. Does the hanging wall block move up […]

What does the Richter magnitude scale depend on? The Richter scale and how it measures earthquake magnitude. The Richter scale calculates an earthquake’s magnitude (size) from the amplitude of the earthquake’s largest seismic wave recorded by a seismograph. Are magnitude and Richter Scale the same? Intensity: The severity of earthquake shaking is assessed using a […]

Which energy transformation occurs at a coal fired electrical power plant? A machine called a pulverizer grinds the coal into a fine powder. The burning coal heats water in a boiler, creating steam. Steam released from the boiler powers an engine called a turbine, transforming heat energy from burning coal into mechanical energy that spins […]

Where is cerebrospinal fluid found around the spinal cord? The CSF occupies the subarachnoid space (between the arachnoid mater and the pia mater) and the ventricular system around and inside the brain and spinal cord. It fills the ventricles of the brain, cisterns, and sulci, as well as the central canal of the spinal cord. […]

What is the name given to the exchange of oxygen and carbon dioxide? The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation). This exchange of oxygen and carbon dioxide is called respiration. What percentage of oxygen […]

What are the carbon and energy sources for a plant? During photosynthesis, plants absorb carbon dioxide and sunlight to create fuel—glucose and other sugars—for building plant structures. This process forms the foundation of the fast (biological) carbon cycle. Can you regrow aloe from a leaf? Many people ask, “Can I grow an aloe plant from […]

What is the most common presenting sign or symptom of PID? The most common presenting sign of pelvic inflammatory disease is: lower abdominal pain. When caring for a woman who is experiencing a gynecologic emergency? When caring for a woman who is experiencing a gynecologic emergency, the EMT’s main focus should be to: maintain her […]