Answer: Three major structural or functional similarities between frogs and humans:
Skeletal Structure: Both frogs and humans have a skeletal system that provides support and protection for their bodies. While frogs have a more simplified skeletal structure compared to humans, both have bones that serve similar functions.
Nervous System: Frogs and humans have a complex nervous system that allows them to sense and respond to their environment. Both species have a brain and a spinal cord, which are crucial for coordinating various bodily functions and facilitating movement.
Digestive System: Frogs and humans have similar digestive systems. They both have a mouth, esophagus, stomach, and intestines, which are involved in the process of breaking down food and extracting nutrients. Additionally, both species have specialized organs such as the liver and pancreas that aid in digestion.
Three major structural or functional differences between frogs and humans:
Respiratory System: Frogs have a unique respiratory system that allows them to breathe through their skin. They can also respire through their lungs and the lining of their mouth. In contrast, humans rely solely on their lungs for respiration, exchanging oxygen and carbon dioxide through the alveoli.
Reproductive System: Frogs have external fertilization, meaning that the female lays eggs and the male fertilizes them externally. Humans, on the other hand, have internal fertilization, where the male's sperm fertilizes the female's egg inside her body. Additionally, frogs undergo metamorphosis, transforming from tadpoles to adults, while humans do not experience this drastic change.
Locomotion: Frogs are adapted for a life both on land and in water, with their specialized limbs and webbed feet that allow them to jump and swim efficiently. Humans, on the other hand, have a bipedal locomotion, relying on two legs for walking and running. Humans have a more upright posture and a different skeletal structure to support their mode of locomotion.
It's important to note that while frogs and humans share certain similarities and differences, these examples are not exhaustive and there are many more intricate details that differentiate the two species.