Answer:
All organisms use a source of energy for their metabolic activities. Some organisms capture energy from the sun and convert it into chemical energy in food (photosynthesis); others use chemical energy in molecules they take in as food (cellular respiration)Explanation:
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Viruses are made up of DNA
The role of xylem is to transport water and some nutrients from roots to shoots and leaves.
The correct answer is D) fern gametophyte bearing only antheridia.
