Which statement about chemical reactions is not true?
New atoms are formed as products.

The starting substances are called reactants.

The ways in which atoms are joined together are changed.

The bonds of the reactants are broken and new bonds of the products are formed.

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

Can someone me with questions 12 and 13 plz.

What is true for a substance that releases energy