What happens to the dorsal side of a frog during metamorphosis? During metamorphosis, the tadpole's dorsal features, such as the tail, are reabsorbed or modified, while new features, like the limbs and adult skin coloration, develop on the dorsal side. Frog External Anatomy Purpose: For students who miss the frog dissection, this page can be a substitute. Be sure to download the frog dissection handout.
You will complete it as your view images and read descriptions 1. This photo shows the external frog. Dorsal refers to the back side and ventral is the belly side.
Note the difference in colors. The dorsal surface of the frog is a dark green and brown dotted pattern all along the frog's back. It is a great adaptation of camouflage, especially from a bird's view above.
The ventral surface is a pale white color because less camouflage is needed underneath. From underneath, predators look at the the sun and don't realize that the frog is. The backside of the frog is called the dorsal side.
The belly side is called the ventral side of the frog. Observe the color differences between the dorsal and ventral sides. The color of the frogs dorsal side is not consistent.
This is because many different frogs are many different colors. Morphology of Frog: The skin of frog is smooth and slippery due to the presence of mucus. The skin is always maintained in a moist condition.
The color of dorsal side of body is generally olive green with dark irregular spots. On the ventral side the skin is uniformly pale yellow. The frog never drinks water but absorb it through the skin.
Body of a frog is divisible into head and trunk. Introduction: A Closer Look at the Frog's Back The dorsal surface of a frog, often exhibiting vibrant coloration and intricate patterns, is a testament to natural selection. It's the part of the frog most exposed to the elements and predators, making its features key to survival.
This region encompasses the skin, underlying musculature, skeletal structures, and even parts of the circulatory. Frog 4 Frog 5 Average Length 5. Locate the frog's eyes, the nictitating membrane is a clear membrane that attached to the bottom of the eye.
Use tweezers to carefully remove the nictitating membrane. You may also remove the eyeball. What color is the nictitating membrane? _______ What color is the eyeball? _________ 6.
The dorsal side of a frog's body is generally olive green with dark irregular spots. 1. Notice the color patterns of the dorsal surface of the frog.
Explain how these patterns are an adaptation feature for the frog. 2. What is the color of the ventral surface, and how might this be adaptive for survival? 3.
What advantage does the frog have by having its eyes on the top of its head? 4. What is the function of the nictitating.