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Concept explainers
To determine:
Welwitschia plant has a large number of closed stomata which are beneficial to the desert plant.
Introduction:
Welwitschia mirabilis is a desert plant which is mostly found in the Namib and Mossamedes deserts in Africa. The plant is often described as 'bizarre', 'weird', or 'unlike any known plant on earth’. Rainfall and moisture from fog are the two essential conditions for the survival of this plant. The average rainfall in Africa is about 2.5 centimeters per year. This plant can live upto 15,000 years approximately. Welwitschia has a large number of stomata (22,000 /cm3) which remain mostly closed. Stomata are responsible for the process of transpiration (loss of water in the plant).
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Chapter 9 Solutions
Connect Access Card Biology 720 Day Gadsden State Community College Bio 103/104
- State the five functions of Globular Proteins, and give an example of a protein for each function.arrow_forwardDiagram of check cell under low power and high powerarrow_forwarda couple in which the father has the a blood type and the mother has the o blood type produce an offspring with the o blood type, how does this happen? how could two functionally O parents produce an offspring that has the a blood type?arrow_forward
- What is the opening indicated by the pointer? (leaf x.s.) stomate guard cell lenticel intercellular space none of thesearrow_forwardIdentify the indicated tissue? (stem x.s.) parenchyma collenchyma sclerenchyma ○ xylem ○ phloem none of thesearrow_forwardWhere did this structure originate from? (Salix branch root) epidermis cortex endodermis pericycle vascular cylinderarrow_forward
- Identify the indicated tissue. (Tilia stem x.s.) parenchyma collenchyma sclerenchyma xylem phloem none of thesearrow_forwardIdentify the indicated structure. (Cucurbita stem l.s.) pit lenticel stomate tendril none of thesearrow_forwardIdentify the specific cell? (Zebrina leaf peel) vessel element sieve element companion cell tracheid guard cell subsidiary cell none of thesearrow_forward
- What type of cells flank the opening on either side? (leaf x.s.) vessel elements sieve elements companion cells tracheids guard cells none of thesearrow_forwardWhat specific cell is indicated. (Cucurbita stem I.s.) vessel element sieve element O companion cell tracheid guard cell none of thesearrow_forwardWhat specific cell is indicated? (Aristolochia stem x.s.) vessel element sieve element ○ companion cell O O O O O tracheid O guard cell none of thesearrow_forward
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