Answer: The vulnerable embryo must be sheltered from desiccation and other environmental hazards. In both seedless and seed plants, the female gametophyte provides protection and nutrients to the embryo as it develops into the new generation of sporophyte.
Explanation:
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Answer:
b. the uses an area of land can be put to
Answer:
C. It can be DNA or RNA
Explanation:
Viruses can be described as non cellular, microscopic, infective agent that are composed of genetic material ( DNA or RNA), which is surrounded by a protenaceous coat known as viral capsid.
It means that there can be RNA ( ribonucleic acid) and DNA ( deoxyribonucleic acid) based viruses.