To reproduce, many plants produce seeds-structures containing embryonic offspring along with nutrients inside a tough case. These offspring develop after being released by the parent plant. To which animal reproductive strategy is seed production most comparable?

Oviparous

Explanation:

This is similar to animals laying eggs. Eggs are the tough cases inside which you have the embryo. Next to it, there are all the necessary nutrients it needs to develop outside its mother. Birds develop entirely outside their mothers, needing only the right environmental conditions to do so.

The best answer to the question: To which animal reproductive strategy is seed production most comparable, would be: oviparous animals, like hens.

Explanation:

Essentially what the reproductive system of this plant does is, the seed, which is the structure that contains the embryonic potential for a new offspring of the plant, is released from the parent plant with not much more than the tough covering around that protects the embryo inside, and with nutrients inside the case that will feed and sustain the seed until it is ready to germinate and finish its own development. Likewise, in animals, this form of reproduction, in which a potential embryo is released from the mother inside a hard covering called an egg, with nutrients inside, without it being developed within the mother itself, or with very little input from the mother's body, is characteritic of oviparous animals like birds, reptiles and amphibians, among others.