What is the opposite of hermaphrodite? I.e., having no sex organs?

How could one describe an animal that is neither male nor female, because it has no sex organs?

But it could choose which sex organs to develop based on the environmental needs.

Not hermaphroditic because that means having both sets of sex organs, and not androgynous because (I believe) that describes solely appearance.

The _______ toad is...

Solution 1:

That depends on the exact meaning(s) that you want to convey. You might use "asexual or non-sexual" or something similar like "neuter or neutral". Specifically, as far as "having no sex organs" goes, I think "neuter or neutered" comes closest to your meaning.

The "neuter" character is...

https://www.thefreedictionary.com/asexual

https://www.thefreedictionary.com/neuter

I also found "genderless" and a number of other interesting possibilities here:

https://nonbinary.miraheze.org/wiki/Agender