Unit 2 Lesson 4 Review
Authored by Dana Ludington
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7th Grade
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Even when it is cold outside, the human body maintains a constant internal temperature. Which term describes the maintenance of a stable internal condition?
mitosis
endocytosis
homeostasis
photosynthesis
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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 is a day old and has learned to reach for Beth
The baby's reflex to grab is an innate behavior
The baby's homeostatic response is to touch objects that are warm
The baby's visual memory recognizes Beth's finger
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following 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.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
This diagram shows the steps involved when chemical receptors in the nose detect different scents. 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.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A group of students is investigating memory. The students performed an experiment in which they showed letters on a screen to participants, and afterward asked participants to recall which letters they saw. Next, they showed the participants the letters and, at the same time, pronounced the sound that the letter represents. Which prediction and explanation are most likely to be correct?
The participants would remember more letters during the first trial because the sound interferes with the ability to form memory.
The participants would remember more letters while hearing the letter pronounced because sound input becomes memory faster than visual input does.
The participants would remember the most letters during the first trial since their memory was fresh.
The participants would remember more letters while hearing the letter pronounced because information was received in more than one way.
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