The digestive system of the earthworm consists of the alimentary canal and the digestive glands. the alimentary canal runs as a straight tube throughout the length of the body from the mouth to anus. the mouth opens into the buccal cavity which occupies the 1 and 2 segments
Answer:
Asexual reproduction.
Explanation:
The generation of genetically identical offspring from a single parent, without the fusion of sperm and egg, is called asexual reproduction. Asexual reproduction occurs when there is only one parent from which organism is produced. Budding, binary fission and fragmentation are the different types of asexual reproduction that involves only one parent and no fusion of sperm and egg cells.
Explanation: The biological fitness of an organism is dependent on its ability to survive and reproduce in a given environment. A trait that increases ability to survive, but makes an individual sterile, decreases fitness because the organism cannot produce offspring to carry on the trait.
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Answer:
to indicate the smallest unit of a repeating substance
Explanation:
