Multiple Choice
Which of the following correctly labels the anterior and posterior ends of a polychaete worm (phylum Annelida)?
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1. Introduction to Biology
Introduction to Taxonomy
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Which animal group does an organism with feathers, a beak, and the ability to lay hard-shelled eggs belong to?
A
Mammals
B
Amphibians
C
Birds
D
Reptiles
Verified step by step guidance1
Step 1: Begin by identifying the key characteristics of the organism described in the problem: feathers, a beak, and the ability to lay hard-shelled eggs.
Step 2: Recall that feathers are a unique feature found exclusively in birds, making this a strong indicator of the organism's classification.
Step 3: Consider the presence of a beak, which is another distinctive trait of birds, used for feeding and other functions.
Step 4: Note that laying hard-shelled eggs is a reproductive trait shared by birds and some reptiles, but when combined with feathers and a beak, it points specifically to birds.
Step 5: Conclude that the organism belongs to the animal group 'Birds,' as these traits collectively align with the characteristics of this group.
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