Which of the following is true of dog olfaction? a. Most...

Name: Problem 20, Chapter 27: Biology for AP® Courses
Uploaded: 2019-07-30T22:06:08-08:00
Duration: 25 s
Channel: Aadit Sharma
Description: Which of the following is true of dog olfaction? a. Most dogs have 4 billion olfactory receptors. b. Bloodhounds have more receptors than humans, but humans have more receptors than most dogs. c. Rabbits and most dogs have the same number of olfactory receptors. d. Dogs bred for sense of smell can have four times more olfactory cells than most other dogs.

Which of the following is true of dog olfaction? a. Most dogs have 4 billion olfactory receptors. b. Bloodhounds have more receptors than humans, but humans have more receptors than most dogs. c. Rabbits and most dogs have the same number of olfactory receptors. d. Dogs bred for sense of smell can have four times more olfactory cells than most other dogs.

Which of the following is true of dog olfaction?
a. Most dogs have 4 billion olfactory receptors.
b. Bloodhounds have more receptors than humans, but humans have more receptors than most dogs.
c. Rabbits and most dogs have the same number of olfactory receptors.
d. Dogs bred for sense of smell can have four times more olfactory cells than most other dogs.

Key Concepts

Canine Olfaction

This concept refers to the overall sensory process by which dogs detect and interpret odors. It emphasizes the exceptional development of dogs' olfactory systems, which enables them to detect faint scents and differentiate between a wide array of odor molecules. It underpins the study of how anatomical and physiological adaptations contribute to dogs’ superior sense of smell compared to many other species.

Olfactory Receptors

Olfactory receptors are specialized neural structures responsible for the detection of odorants. Their number and sensitivity determine how well an organism can perceive smells. In the context of dogs, these receptors are numerous and highly specialized, which is a key factor in their ability to track and identify scents, and it also highlights the variability in receptor count among different breeds and species.

Selective Breeding

Selective breeding involves choosing animals with specific desirable traits—in this case, an enhanced sense of smell—to reproduce. This process has led to certain dog breeds developing significantly more olfactory receptor cells than others. The concept is crucial for understanding how targeted breeding can amplify natural abilities, as seen in breeds that are developed for scent detection, thereby exhibiting up to four times the number of olfactory cells compared to other dogs.

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