Asap.

1.) how does energy travel in a mechanical wave?

2.)what type of wave requires a medium to travel through?

3.)what is the wavelength of a wave?

4.) what is an example of a mechanical wave?

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

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

When a nucleus absorbs a neutron and then breaks apart, there are many products of the reaction. what is not a product of a nuclear fission reaction