Does ch3ch2nh2 have hydrogen bonding intermolecular forces

In which of these cases are the two wave points considered to be in phase with each other?

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.