Which best describes the animal that she is studying? a mammal because it has a crop
a bird because it has a crop
a bird because it has a four-chambered heart
a mammal because it has a four-chambered heart

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

Which type of fossil does this image depict?