Correct answer: B). With fewer contractions
The main function of a contractile vacuole is to maintain the sufficient amount of water in the protoplasm of the cell. For the freshwater amoeba contractile vacuole is needed to pump water and maintain a osmoregulation.
But when it is kept in sea water, more contraction is required to expel the water out of the cell in order to make the environment inside amoeba same as of sea water.
Explanation:
Yams are produced through slips, which have been generated again from sprouts of mature yams, rather than seeds, as most other crops are. Split a yam in part and place one half in a bowl of cool water to develop sprouts.
Some alternatives to develop tourism in Coron are:
- Improve local infrastructure
- Greater investment in the tourism sector
The island of Coron is located in the Philippines, making it an ideal location for ecotourism, with an emphasis on dives to view wrecks from World War II.
Therefore, to promote tourism in this region, there must be investment in the sector, where there is an ideal infrastructure to receive travelers with safety and quality.
It is also important to train workers to welcome travelers and also to develop a tourism development plan that will generate greater publicity and knowledge of Coron's sights.
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22. C
23. C
24. A
25. B
26. D
27. C
28. C
