Gibbons live in monogamous pair bonds and are therefore

This question is unfortunately incomplete as the following options are provided:
a.  not dimorphic with respect to body size
b.  a solitary species
c.  have intense male competition for mates
d.  better adapted to life in the forest

The answer is a: not dimorphic with respect to body size. Monogamy is thought to lower pre- and post- copulatory competition between males. This means that there is less selection for morphological characteristics in males that would provide a sexually selective advantage for mating, such as size

This is what i found on google“ the monomers combine with each other via covalent bonds to form larger molecules known as polymers. in doing so, monomers release water molecules as byproducts. this type of reaction is known as dehydration synthesis, which means “to put together while losing water. in the process, a water molecule is formed.” i hope this you