Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 34.4, Problem 1TYK
Summary Introduction
Introduction:
The ability to sense light is an ancient adaptation found even in many unicellular organisms, where it may provide a selective advantage for photosynthesis or protection. Such an organism has a single eyespot that contains a small number of light-sensitive molecules but cannot discern the direction of a light source.
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Which statement about compound eyes is true?a. They do not contain a lens or lenslike structure.b. They cannot sense color.c. They have from 1 to 10 ommatidia.d. They are found in insects and also many vertebrates.e. They probably have less resolving power thansingle-lens eyes.
Fill in the blanks:
The two most common visual pigments (photosensitive pigments) of insects are ______and metarhodopsin. These pigments are contained in the regions of the ommatidium called the _____, which consists of "brush-like" fringes of microvilli that run the full length of the inside surface of each _____. which are the sensory neurons of the ommatidium. The _____ of the ommatidium is composed of the corneal lens and the crystalline cone.
For each of the following, match the pattern with its description. Not all
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Chapter 34 Solutions
Principles of Biology
Ch. 34.1 - Prob. 1BCCh. 34.1 - Prob. 1TYKCh. 34.2 - Prob. 1BCCh. 34.2 - Prob. 2BCCh. 34.2 - Prob. 1CCCh. 34.2 - Prob. 1TYKCh. 34.2 - Prob. 2TYKCh. 34.3 - Prob. 1CCCh. 34.3 - Prob. 1TYKCh. 34.4 - Prob. 1CC
Ch. 34.4 - Prob. 2CCCh. 34.4 - Prob. 1TYKCh. 34.4 - Prob. 2TYKCh. 34.5 - Prob. 1CCCh. 34.5 - Prob. 1TYKCh. 34.5 - Prob. 2TYKCh. 34.6 - Prob. 1TYKCh. 34.6 - Prob. 2TYKCh. 34 - Prob. 1TYCh. 34 - Prob. 2TYCh. 34 - The sensory receptors for audition (hearing) are...Ch. 34 - In an experiment to test the function of...Ch. 34 - Prob. 5TYCh. 34 - Prob. 6TYCh. 34 - Prob. 7TYCh. 34 - Prob. 8TYCh. 34 - Which is true? A loss of taste buds would reduce a...Ch. 34 - Prob. 10TYCh. 34 - Prob. 1CCQCh. 34 - Prob. 2CCQCh. 34 - Prob. 3CCQCh. 34 - Prob. 1CBQCh. 34 - Prob. 2CBQ
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- Why would it be an advantage for a deer to have a wide visual field, as compared to overlapping, stereoscopic vision?arrow_forwardWhich statement about the pineal eye seen it tetrapodomorphs, lissamphibians, and some diapsids is true? It increases the range of vision, allowing animals to seen things above or behind them it is completely vestigal, containing no photoreceptor cells or nerve endings it detects light but does not form imagesarrow_forwardWhy do so many animals have two eyes?arrow_forward
- This fluid-filled structure is spiral shaped, with lower-pitched sounds traveling further down the spiral. ossicles tympanic membrane cochlea semicircular canal hair cellsarrow_forwardWhat is the function of eye of fish? How are they different to the human eye?arrow_forwardAmniotes focus on nearby objects by _____. moving their lens forward in their eye further from the retina moving their lens backward in their eye closer to the retina contracting their ciliary muscle to release tension on the zonular fibers so that the lens becomes rounder contracting their ciliary muscle to increase tension on the zonular fibers so that their lens becomes flatter relaxing their ciliary muscle to put tension on the ciliary fibers so that their lens becomes flatterarrow_forward
- Give the differences between the retina of frog and that of shark ?arrow_forwardWhy would a frog need to be able to detect higher frequency sounds than a salamander? How is their hearing apparatus modified for this, compared to the salamander?arrow_forwardHow are insect tympanal organs similar to vertebrate ears?arrow_forward
- Here you see an astigmatism illustration. Please explain why astigmatisms cause blurred vision in the context of our sense of sight. Please do not merely say “The light rays do not hit the focal point”. Please explain why that matters for the sense of sight.arrow_forwardWhen transitioning from a pitch black room, to a sunny room where there is a lot of light, what happens to the cells in the retina? 1. Ganglion cells will release more glutamate 2. Rod cells will release less glutamate 3. Ganglion cells will release less glutamate 4. Rod cells will release more glutamatearrow_forwardBriefly explain why it is particularly difficult for small insects to localise sound. Then describe the ways in which antennal and tympanal insects localise sound, both at the biophysical and neurophysiological level.arrow_forward
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