Introduction:
Reproduction is a process by which living organisms produce offspring of their own kind. There are two main types of reproduction: sexual reproduction and asexual reproduction. Sexual reproduction involves the fusion of male and female gametes, while asexual reproduction does not involve the fusion of gametes and offspring are produced from a single parent.

Animals that reproduce by laying eggs:
Among the given options, all of them reproduce by laying eggs. Let's discuss each animal in detail:

Turtle:
Turtles are reptiles that reproduce by laying eggs. Female turtles typically lay their eggs on land in a nest they dig in the ground. The eggs are then covered and left to incubate for a certain period of time. After the incubation period, the baby turtles hatch from the eggs and make their way to the water.

Fish:
Fish, which include a wide variety of species, also reproduce by laying eggs. Most fish lay eggs in the water. The female fish releases eggs, and the male fish releases sperm to fertilize the eggs externally. The fertilized eggs are then left to develop on their own.

Snake:
Snakes are reptiles that reproduce by laying eggs. However, it is important to note that not all snake species lay eggs. Some snake species give birth to live young, a process called viviparity. However, many snake species do lay eggs. The female snake lays the eggs and then abandons them. The eggs are left to incubate until they hatch, and the baby snakes emerge.

Conclusion:
In conclusion, all of the animals mentioned in the options (turtle, fish, and snake) reproduce by laying eggs. This method of reproduction is known as oviparity. In oviparous animals, the female lays eggs, and the offspring develop and hatch outside the mother's body. It is important to note that not all animals reproduce in the same way, and understanding the different reproductive strategies of various species helps us appreciate the diversity of life on Earth.