Do females contribute more resources to reproduction and development than males

well if you're talking about conception, it would be evident that the male actually puts more effort into it. he's the one that needs to work up to an orgasm while (in practical purposes) the woman can lay back and wait for him.

after conception, though, it's a completely different story. the woman is the one who must then work for 9 months to carry, feed, protect, and develop her child. in the end, although the man works hard at first, very clearly, the woman works harder when having a baby.

no sperm, no baby. You can't create artificial semen, but you can create an artificial egg or host so men contribute more to reproduction and development

edit: There would be ZERO development without the sperm. Therefore, the sperm is accountable for 100 percent of the development as well. You try getting a baby and developing it without sperm

It depends on the male and the female. A male could work 6 days a week for the baby, for it's food, clothing etc. The mother can be irresponsible and the father will have to take care of the baby.... school, hobbies, friends, adolescence... The father might have to do all the raising.

There are just way too many variables to consider.

Generally speaking, females contribute more resources than males.

(edit) Hardly any energy is used when producing sperm. It's not like the male is exhausting himself trying to create sperm.

No. Females use only one egg at a time. Males use millions of sperm at one time.