Assignment 12 Nutritional Adaptations in Animals
Due November 13
Questions 1-3 are based on Table 1.
1. Multiple-choice (1 point)
Which type of fish had the greatest number of empty stomachs?
Fish that ate small insects.
Fish that ate other fish.
Omnivores and fish that ate algae/detritus
Omnivores and fish that ate insects
Omnivores and fish that ate other fish
2. Multiple-choice (1 point)
Which type of fish had the fewest empty stomachs?
Fish that ate small insects.
Fish that ate other fish.
Omnivores and fish that ate algae/detritus
Omnivores and fish that ate insects
Omnivores and fish that ate other fish
3. Essay (3 points)
Write a short essay that explains the results in Table 1.
Questions 4 and 5 refer to the video on rotifers (bottom of page 1)
4. Multiple-choice (1 point)
When the rotifer was stationary, about how many of the prey brought near the mouth
were captured?
one
five
ten
almost all of them
none of them
5. Essay (3 points)
Which hunting strategy, swimming or remaining stationary, do you think the rotifer
should use when prey is not abundant? Write a short essay that explains your answer.
6. Essay (3 points)
If biologists find that termites can live without their gut protists, would the relationship
between termite and protist still be mutualistic? If not, what type of relationship would it
be? Write a short essay that explains your answer.
Questions 7-9 refer to frog anatomy.
7. Image map (1 point)
Point to the liver in this image of a dissected frog.
8. Multiple-choice (1 point
In this image of a dissected frog, what is the main function of the organ
indicated by a red arrow?
to absorb digested nutrients
to begin protein digestion
to complete protein digestion
to digest starch
to digest lipids
9. Multiple-choice (1 point)
Name the organ indicated by the white arrows in this dissected frog.
liver
stomach
gall bladder
large intestine
small intestine
10. File upload (3 points)
Fill in the table based on your measurements of the tadpole in the photograph. Do a
screen shot of the table and upload it as in image to WebAssign (jpg or png format).
Intestine length in the bullfrog adult and tadpole
Length of
intestine (cm)
Length of body
(cm)
Intestine
length/body
length
Adult frog
28
10
2.8
Tadpole
?*
?*
?
* Remember to divide your initial measurement by 2 to correct for magnification of the
photograph.
11. Essay (3 points)
Write a short essay indicating the differences that you see in the digestive tracts of the
rabbit and the cat. (Which parts are proportionally longer in one animal?)
12. File upload (4 points)
Search the Internet to locate a diagram or photograph of a digestive tract from a wild
animal that is similar to that of a cow. Download the image, label the stomach, and type
the name of the animal at the bottom of the image. Upload the image as a jpg or png file
to WebAssign.
Questions 15-17 refer to the skull images with different types of dentition.
13. Fill-in-the-blank (1 point)
Skull #1 is from an animal that is a _______________________.
The choices are : herbivore, carnivore, omnivore
14. Fill-in-the-blank (1 point)
Skull #2 is from an animal that is a _______________________.
The choices are : herbivore, carnivore, omnivore
15. Fill-in-the-blank (1 point)
Skull #3 is from an animal that is a _______________________.
The choices are: herbivore, carnivore, omnivore