16. and are fossil species with characteristics unique to fish as well as characteristics found in fish and tetrapods. Describe the characteristics of lobe-finned fish that are similar to those of tetrapods.

 Acanthostega and Ichthyostega

Explanation:

The Acanthostega and Ichthyostega are the two different species of fossils that exhibit characteristics that can be found in fish and tetrapods.

The following are the characteristics or features of lobe finned fish that are similar to tetrapods are:

1. Lobe: The teeth are covered with tooth enamel.

2. Fins of lobe:  Finned fish are flexible that support them for movement on land as well.

3. Presence of gills

4. All the body parts are connected with a single bone.

5. Pectoral and pelvic fins are used for articulation of the limbs.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.