A dot whistle is designed to provide a sound with a frequency beyond which can be heard by humans. If a particular whistle produces a sound with a frequency of 25000 hz, what is the sounds wavelength? Assume the speed of sound in the air is 332 m/s.

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

Type the correct answer in the box. spell all words correctly.what is the correct term for living the most sustainable life you can within your current circumstances? when your are being as sustainable as you can within your current lifestyle, you are said to be sustainability.

I’m an electrically neutral atomic any element, there are equal numbers of