Question
Explain any three advantages the seeds offer to angiosperms.
✓
Answer
- Since reproductive process such as pollination and fertilisation are independent of water, seed formation is more dependable.
- Seeds have better adaptive strategies for dispersal to new habitats and help the species to colonise in other areas.
- As they have sufficient food reserves young seedlings are nourished until they are capable of photosynthesis on their own.
- The hard seed coat provides protection to the young embryo.
- Being products of sexual reproduction, they generate new genetic combinations/variations.
- Dehydration and dormancy of mature seeds are crucial for survival under adverse conditions.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Differentiate between perisperm and endosperm by giving one example of each.
Ankit attended a blood donation camp to donate blood and came to know that he was HIV positive. He lost interest in studies knowing that. He remained absent from school for a long time. The biology teacher visited his house and talked to him. Ankit started coming to school again and showed interest in studies.
- A person detected to be HIV positive should be isolated by the society. Do you agree? Why/ why not?
- Write the processes through which, AIDS does not spread.
- Who are at higher risk of encountering AIDS?
- What sense of responsibility did the biology teacher exhibit?
"Pollen grains in wheat are shed at 3-celled stage while in peas they are shed at 2-celled stage." Explain. Where are germ pores present in a pollen grain?
Why is pedigree analysis done in the study of human genetics? State the conclusions that can be drawn from it.
Study a part of the life cycle of malarial parasite given below. Answer the questions that follow:
- Mention the roles of 'A' in the life cycle of the malarial parasite.
- Name the event 'C' and the organ where this event occurs.
- Identify the organ 'B' and name the cells being released from it.
Define the term addiction. Name some drugs which are normally used as medicines but are often abused.
Co-extinction and introduction of alien species too are responsible for the loss of biodiversity. Explain, how.
Give the names and functions of enzymes involved in lactose metabolism in E Coli.
- Write the two limitations of traditional breeding technique that led to promotion of micro propagation.
- Mention two advantages of micro propagation.
- Give two examples where it is commercially adopted.
Describe the experiment that helped Louis Pasteur to dismiss the theory of spontaneous generation of life.