Crocodiles, bats, whales, and birds have similar limb bones. What do these similarities suggest

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!