10. Which of the following is NOT true about the digestive system of annelids?
a. It contains setae to move the food through the anus
b. It is similar to an open tube
c. It passes nutrients through the intestinal wall to the bloodstream
d. It stores soil in the crop and grinds it up in the gizzard
A?
12. Jointed appendages of arthropods may
a. sense the environment
b. function in locomotion
c. function in feeding
d. all of the above
D?
15. The appendages of arthropods may function in all of the following ways EXCEPT to
a. serve as walking legs
b. be modified into antennae
c. be modified into large pincers
d. be modified into parapodia
D?
Thanks
-MC
10 and 12 are right idk about 15
To answer these questions, we will examine each option and eliminate the ones that are true about the given organisms.
10. The option that is NOT true about the digestive system of annelids is:
a. It contains setae to move the food through the anus.
To determine the correct answer, we need to know about the digestive system of annelids. Annelids have a similar digestive system to an open tube, meaning they have a straight tube-like structure running through their body. Nutrients are passed through the intestinal wall to the bloodstream. They also store soil in the crop and grind it up in the gizzard. However, annelids do not have setae to move the food through the anus. Therefore, the correct answer is a.
12. Jointed appendages of arthropods may:
d. all of the above.
When it comes to the jointed appendages of arthropods, they serve multiple functions. They can sense the environment, aid in locomotion, and assist in feeding. Therefore, all of the above statements are true, and the correct answer is d.
15. The appendages of arthropods may function in all of the following ways EXCEPT to:
d. be modified into parapodia.
To determine the correct answer, we need to consider how the appendages of arthropods function. Arthropod appendages can serve as walking legs, be modified into antennae, and be modified into large pincers. However, arthropod appendages are not modified into parapodia. Therefore, the correct answer is d.
Based on this analysis, the correct answers are:
10. a (It contains setae to move the food through the anus is NOT true about the digestive system of annelids.)
12. d (All of the above are true about the jointed appendages of arthropods.)
15. d (Appendages of arthropods are not modified into parapodia.)