Question

Write any 4 similarities in characteristic features between amphibians and reptiles.

Answer 1

The below list is of general similarities:

Respiration

Breathing is via lungs (salamanders have no lungs) however; aquatic turtles have the ability to do a limited gas exchange underwater primarily during extended periods of cold temperature or inactivity. The gas exchange, depending upon species, is through skin, throat or the anal region where capillary blood vessels absorb oxygen. Most amphibians conduct gas exchange through skin called cutaneous respiration.

Feeding

Catch live prey making many of them omnivores.

Skin

The color of the skin can be altered via the concentration or dissipation of melanin. Color alteration aids in thermoregulation and camouflage.

Reproduction

Eggs

Longevity

80+ years is possible for both reptiles and amphibians.

Defense

Layers of protection are available to both.

Initial defense

Evading danger through the use of camouflage, playing dead or mimicry. Mimicry is used by animals who wish to scare off predators. Often it is used by those who have no innate defensive capabilities. Mimicry includes altering the skin to present the bright colors of dangerous animals or to change their appearance to appear venomous.

Final defense: Inflating the body and biting.

Metabolism

Both are ectothermic (requiring the absorption of heat) to regulate internal body temperature. This is true for all except one turtle species which is able to generate some internal body heat. Ectotherms are often referred to as ‘cold blooded’ but that term is actually a misnomer. I use the term, ambient, to describe both reptiles and amphibians. Over a period of time, their body temperature is relatively the same temperature as the water, dirt or sun warmed air they happen to venture into. This is referred to as behavioral thermoregulation where the animal changes posture or physical location to raise body temperature for metabolic activity.

Answer 2

1) both of them have four legs
2). covered with thick skin
3). both of them have four chambered heart
4). both of them are cold blooded animals
hope it helps u