1. Why do plants invest so much energy in reproduction? 2. How is seed plant rep
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Question
1. Why do plants invest so much energy in reproduction? 2. How is seed plant reproduction adaptaed to terrestrial environment? -How successful are those adaptations? How well have seed plants survived on land?3. What is the difference between pollination and fertilization? 4. What is the function of pollen grain air sacks? 5. What is the difference between how gymnosperms and angiosperms manifest their heteosporus nature? 6. What are the difference between how pollen is transferrred from he male reproductive structure to the female in gymnosperms vs. angiosperms? 7. Why are stone cells found in pears and not in berries? 8. Why do plants put so many nutrients in fruit when the fruit does not provide nutrients to the growing seed? 1. Why do plants invest so much energy in reproduction? 2. How is seed plant reproduction adaptaed to terrestrial environment? -How successful are those adaptations? How well have seed plants survived on land?
3. What is the difference between pollination and fertilization? 4. What is the function of pollen grain air sacks? 5. What is the difference between how gymnosperms and angiosperms manifest their heteosporus nature? 6. What are the difference between how pollen is transferrred from he male reproductive structure to the female in gymnosperms vs. angiosperms? 7. Why are stone cells found in pears and not in berries? 8. Why do plants put so many nutrients in fruit when the fruit does not provide nutrients to the growing seed? 2. How is seed plant reproduction adaptaed to terrestrial environment? -How successful are those adaptations? How well have seed plants survived on land?
3. What is the difference between pollination and fertilization? 4. What is the function of pollen grain air sacks? 5. What is the difference between how gymnosperms and angiosperms manifest their heteosporus nature? 6. What are the difference between how pollen is transferrred from he male reproductive structure to the female in gymnosperms vs. angiosperms? 7. Why are stone cells found in pears and not in berries? 8. Why do plants put so many nutrients in fruit when the fruit does not provide nutrients to the growing seed?
Explanation / Answer
STEP-1
1) plant invest so much energy in reproduction because in order for the species to continue to live on , they have to be able to successfully reproduce . It is vital for them to be successfull in reproduction so the why they invest a lot of energy in the it , in order to preserve themselves
STEP-2
2)
part 1
The evolution of a pollen tube so that they do not need water to reproduce . The development of a seed tha gives the embryo protection and all the nutrients it needs to survive
part-2
The seed is crucial for the plants to survive . it increases the chances of success for the embryo . Also not needing water to reproduce gave the plants a better chances of reproducing . Both of these adaptation have been extremely successfull and have allowed them to survive on land very well
STEP-3
3) pollination is the process whereby pollen grains move from the anther to the stigma on a flower's style while fertilization is the fusion of the male gametes and female egg cell to form a new plant seed.
pollination precedes fertilization and depends on such media as wind ,water and insects.
STEP-4
2) pollination . Marmalade hoverfly , pollen on its face and legs , sitting on a rockrose . The transfer of the pollen grain to the female reproductive structure (pistil in angiosperms ) is called pollination .
Anemophilous plants typically produce great quantities of very lightweight pollen grain somtimes with air sacs.
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