Answer:
Kat should get a whistle that emits sounds in the range of <u>23 and 54,000 Hz</u>.
Explanation:
The hearing range is the frequency range that can be heard by the animals, including humans.
Generally, the hearing range of humans is about 20 to 20,000 Hz and the hearing range of dogs is around 67 to 45,000 Hz
Dog whistles are the whistles which emits ultrasonic sound and are used for training dogs. <u>Generally, the dog whistles are within the range of 23 to 54,000 Hz and thus, can not be heard by the humans.</u>
Answer:
is there a picture fo this
The correct answer is They encouraged Northern businesses to build factories in Georgia
Explanation: International Cotton Exposition it was a world fair held in Atlanta, to help the Bourbon Triumvirate to gain the businesses to invest factories in Georgia.
<span>the rise of rome is the factor of a century of marine/naval warfare with carthage</span>
Answer:
7....Mainland brown bear
.....ABC Brown bear
,,,,,Polar Bear
Explanation:
The mainland brow bear and the ABC brown bear, both share common ancestor 7. but, the polar bear also descended from ancestral specie 7. because not all descendant of ancestral specie 7 are included, that group is considered paraphyletic.
