Amphibians
Amphibian literally means 'both side of life'. That is because the undergo complete metamorphosis changing from something that doesn't look very frog-like (tadpoles) to an adult frog. Class amphibia includes toads (dry, warty skin), salamanders, and frogs (moist skin, stays near water).
The characteristics of this class are ...
If you get a chance to raise tadpoles into frogs, please do so. It is so much fun to watch them go through their stages of metamorphosis. They are easy to care for. Most kits will provide food and instructions. If you gather them from a creek or pond, be sure to get a fresh supply of live algae every so often to add to their diet. They will eat a wide variety of things, but their natural diet through much of the tadpole stage is algae, We tried ours on a small piece of fig and discovered that they love it so much they will go in to a feeding frenzy.
This module, we will be dissecting a frog. This is one of my favorite of the four dissections that we do during the general biology course. It is easy to work with the frog anatomy and if you get a double-injected frog you can really get a good feel for the size and breadth of their circulatory systems.
The characteristics of this class are ...
- Endoskeleton made mostly of bone
- skin with many capillaries and pigment
- two limbs will be webbed
- as many as 4 organs of respiration
- three chambered heart
- oviparous with external fertilization
If you get a chance to raise tadpoles into frogs, please do so. It is so much fun to watch them go through their stages of metamorphosis. They are easy to care for. Most kits will provide food and instructions. If you gather them from a creek or pond, be sure to get a fresh supply of live algae every so often to add to their diet. They will eat a wide variety of things, but their natural diet through much of the tadpole stage is algae, We tried ours on a small piece of fig and discovered that they love it so much they will go in to a feeding frenzy.
This module, we will be dissecting a frog. This is one of my favorite of the four dissections that we do during the general biology course. It is easy to work with the frog anatomy and if you get a double-injected frog you can really get a good feel for the size and breadth of their circulatory systems.