When you get home, you smell cookies baking. You respond by walking toawr the kitchen. Many signals move through you nervous system in this process. Which components is involved first?
A. Dendrites in you motor neurons
B. Axons in your sensory neurons
C. Axons in your motot neurons
D. Dendrites in your sensory neurons.
B. Axons in your sensory neurons
which component of the nerverve cells contains the nucleous?
A. Axon
B. Dendrite
C. Neuron
D. Cell body.
My answer is D. Cell body
Your answer is correct. The nucleus is typically located in the cell body of a neuron. So the correct answer is D. Cell body.
Which of the following observations could you make bassed on stimuli to your thermoreceptors?
A. The ice cream is cold
B. The ice cream is heavy
C. The ice cream is sweet
D. The ice cream is white
My answer is A. The ice cream is cold
Your answer is correct. Thermoreceptors are responsible for sensing temperature, so the observation you could make based on stimuli to your thermoreceptors would be that the ice cream is cold. So, the correct answer is A. The ice cream is cold.
A girl has her eyes shut and standing inside a bright lit room. What happens to her eyes when she opens her eyes? why?
A. Her pupils grow beacuse the muscles contract
B. Her pupils shrink beacuse the muscles contract
C. Her pupils grow beacuse the muscles Relax
D. Her pupils shrink beacuse the muscles relax.
My answer is B. Her pupils shrink beacuse the muscles contract
Your answer is correct. When the girl opens her eyes in a bright lit room, her pupils will shrink (constrict) because the muscles of the iris contract in response to the increased light to reduce the amount of light entering the eyes. So, the correct answer is B. Her pupils shrink because the muscles contract.
The human body has four types of tissues. What part of the eyes uses muscles tissue for opening and closing movements?
A. Sclera
B. Cornea
C. Retina
D. Iris
My answers is B. Cornea
The correct answer is D. Iris.
The iris is the part of the eye that contains muscles responsible for controlling the size of the pupil, which determines the amount of light that enters the eye. The iris contracts or relaxes these muscles to adjust the size of the pupil, allowing it to open or close in response to light levels. The cornea, on the other hand, is the transparent front part of the eye that helps focus light entering the eye.
How do polar bears mantain homeostasis in freezing cold weather?
A. Their metabolism shows down to preserve heat
B. Their thick skin insulates the internal organs against the cold
C. Their thick fur reatins heat
D. Their metabolims speeds up to produce heat
My answers is A.