Answer:
Frog: From Eggs
Mosquito: From Eggs
Dog: Born Alive
Butterfly: From Eggs
Explanation:
Frogs: Typically, frogs lay eggs. This process usually occurs through external fertilization, where the female releases her eggs from her body into water. Then, the male releases his sperm to fertilize them. ... In this case, the eggs are fertilized inside the female's body before they are released.
Mosquito: After The Female Mosquito obtains a blood meal, the female mosquito lays the eggs directly on or near water, soil and at the base of some plants in places that may fill with water. ... The eggs hatch in water and a mosquito larva or "wriggler" emerges. The length of time to hatch depends on water temperature, food and type of mosquito.
Dogs: Puppies are born inside a thin sac, which the mother will remove, enabling them to breathe. After each puppy, your dog should pass an afterbirth (placenta), which they often eat. The placenta is the structure that provides oxygen and nutrients to the puppy while it's developing in the womb.
Butterfly: Egg - Butterflies are born from eggs. The eggs are attached to a leaf of a plant with a special type of glue. ... Larva or Caterpillar - When the butterfly egg hatches, out comes a caterpillar. Caterpillars are long multi-legged insects that make up the larva stage.
