Font size
WorksheetsUnit 2 Lesson 4: Quiz: Information Processing in Animals
Total questions: 14
Worksheet time: 15mins
Even when it is cold outside, the human body maintains an internal temperature of 37 °C. Which term describes the maintenance of a stable internal condition?
mitosis
homeostasis
endocytosis
photosynthesis
A rat approaches a piece of rotting fruit, smells it, takes a small bite, and then runs away. Which statement best explains the reason for the rat’s behavior?
The rat runs away from the fruit to process the new sensory information.
Sensory receptors in the rat’s whiskers respond to input about the texture of the fruit.
The rat’s chemical receptors detect chemicals in the fruit that alert the rat to possible danger.
Information gathered by the rat’s auditory receptors signal that the environment around the fruit is not safe.
Which of these is an example of how the need to maintain homeostasis can cause an organism to change its behavior?
A bear hibernates during the winter.
A tree loses its leaves in the winter.
A human shivers when exposed to cold weather.
Organisms do not change their behavior to maintain homeostasis.
A diagram shows several parts of a human eye: lens, iris, cornea, retina, and optic nerve. Which statement best describes how sensory receptors in the eye gather information to be processed by the brain?
The iris controls the amount of light entering the eye.
The lens transmits impulses from the optic nerve to the brain.
The cornea bends incoming light, which is then focused by the lens.
Cells in the retina detect light and produce nerve signals sent to the brain through the optic nerve.
Beth has a one-day-old baby daughter. When Beth puts her finger in the baby’s hand, the baby grasps her finger. Which statement best describes why the baby grasps Beth’s finger?
The baby’s reflex to grab is an innate behavior.
The baby’s visual memory recognizes Beth’s finger.
The baby is a day old and has learned to reach for Beth.
The baby’s homeostatic response is to touch objects that are warm.
A diagram shows steps when chemical receptors in the nose detect different scents: flower → nose → olfactory receptor. Which statement describes the next two steps in the process?
Nerves pass the signal to the brain, where it is processed.
The scent is carried by red blood cells to the brain in blood.
Hormones carry the scent through the body to be interpreted.
If the scent is familiar, it causes a memory to become activated.
Students investigated memory using letters shown on a screen. After showing the letters, they asked participants to recall them. Then they showed the letters again and simultaneously pronounced the sound the letter makes. Which prediction and explanation are most likely to be correct?
Participants would remember the most letters during the first trial since their memory was fresh.
Participants would remember more letters during the first trial because the sound interferes with forming memory.
Participants would remember more letters while hearing the letter pronounced because information was received in more than one way.
Participants would remember more letters while hearing the letter pronounced because sound input becomes memory faster than visual input does.
One characteristic of living things is responding to external changes to keep their internal environment stable. Name an environmental change an animal must respond to in order to keep a stable internal environment. Then explain what might happen to an organism if it could not adapt to an external change.
Scientists ran an experiment to test whether seeing an object affects a person’s idea of the object’s mass. Procedure: two boxes of different sizes with equal mass; participants lift each with a string; half are blindfolded; report which seems more massive; record results. Results table shows: Non-blindfolded—12 said larger box more massive, 1 said smaller more massive, 2 said same; Blindfolded—2 said larger more massive, 2 said smaller more massive, 11 said same. Which conclusion best compares how the brain processed sensory information for blindfolded versus non-blindfolded participants?
Vision led non-blindfolded participants to rely on size cues, often judging the larger box as more massive; blindfolded participants relied on lifting sensation and more often judged the masses equal.
Non-blindfolded participants used tactile input more effectively than blindfolded participants, leading to more accurate equal-mass judgments.
Blindfolded participants were confused by the absence of visual cues and guessed randomly, while non-blindfolded participants accurately judged equal mass.
Both groups processed information the same way because size does not affect mass perception.
Compare how sensory information was processed differently by the brain of blindfolded and non-blindfolded participants in the experiment with two boxes of equal mass. Use evidence from the results table in your explanation.
A student observed a chick and a hawk. Day 1: The chick wanders into an open field away from its mother; a hawk swoops toward the chick; the chick sees the hawk and quickly runs back to the coop. Day 2: The coop door is opened; the chick stays close to its mother near the coop. Explain how the danger was processed by the chick’s brain on Day 1 and how Day 1 affected the chick’s behavior on Day 2.
When a person touches a hot surface, they quickly pull their hand away. Which statement best explains this reaction?
The visual system recognizes the danger and initiates movement.
The muscles in the hand automatically contract without any sensory input.
Sensory receptors in the skin detect heat and send signals to the brain, triggering a reflex action.
The person consciously decides to move their hand after feeling pain.
During a memory experiment, participants are shown a series of images and asked to recall them later. Which method would most likely improve their recall?
Displaying the images for a shorter period of time.
Describing each image aloud while showing it.
Showing the images in complete silence.
Asking participants to guess the images without seeing them.
Which of the following is an example of an innate behavior in animals?
A dog learning to fetch a ball after repeated training.
A newborn calf standing and walking shortly after birth.
A cat responding to its name after being called many times.
A parrot mimicking human speech.
