- Life Sciences
the cavity used for transport purposes. It has one opening to the environment through which ingestion and digestion both take place.
stage of photosynthesis that does not require light energy to occur.
the passage through which the nerve and blood vessels leave the root of the tooth.
the gamete-producing phase that produces the zygote from which the sporophyte emerges.
compounds such as lipids, carbohydrates, proteins, nucleic acids, vitamins, petrochemicals and...