<span>Natural selection is a process by which organisms that are better adapted to their environment tend to C. evolve new traits. Evolution is a process of change through time. There are several mechanisms of evolution, such as natural selection, mutations, migrations, and genetic drift. Natural selection is the mechanism by which species adapt to their environment to increase their chance of survival and reproduction. It can result in progress and cause some organisms to evolve new traits they need. </span>
The glandular swelling is found on the back of the earthworm and is called C.litellum.
An earthworm is tube shaped and it belongs to the Annelida phylum. It is usually found in the soil, where it contribute to the level of fertility of the soil by feeding on the dead organic matter and by aerating the soil. Earthworms lack internal skeletons and they are hermaphrodites.
Name the three types of neurons classified according to the direction in which the impulse is being transmitted. Define or explain each of them. Sensory neurons, also called afferent neurons, transmit impulses to the spinal cord and brain from all areas of the body.
Use iodine.
Iodine solution makes the sample you want to study of microscopic organism more visible.
Plants and animals are both "organisms" or "living organisms" if you prefer.
An organism is basically a group of different organs functioning together (hope this was the easiest way to explain it).
Hope it helped,
Happy study/ homework/ exam!
