(Sepal)

The sepal is a part of the outer ring of leaves of the non fertile parts that surrounds the fertile organs of the flower. It is one of the green parts that forms the calyx of the flower.The amount of sepals is often the same number of petals on the flower and they are centered over the petal divisions.Some sepals are colored like the actual petals and others fall off after the bud opens.the sepals help protect the flower while it is still a bud.(The sepals are small on this flower)




Works Cited


sepal. (2011). Retrieved September 4, 2011, from http://www.thefreedictionary.com/sepal

(C4 Plant)

A C4 plant is a plant that first fixes CO2 into a compound that has four carbon atoms before entering the Calvin Cycle of photosynthesis. C4 plants use carbon fixation. Carbon fixation is a process by which a plant removes carbon from the atmosphere and makes it into a solid. Corn (above) is an example of a C4 plant.

Works Cited

Stabler, L.B.S, Metz, M.M., & Gier, P.G. (2010). AP Biology. New York: Kaplan Publishing.

(Base)

Bases are ionic compounds that break apart to form a negatively charged hydroxide ion (OH-) in water.Often bases are soapy, slippery and taste bitter. Stronger bases are dangerous and capable of burning skin. On the pH scale an base is any pH number higher than 7 on the scale that ranges from 0-14.some examples of bases are blood, antacid, ammonia, laundry detergent (above), Drano and egg whites.

Works Cited


Acids and Bases. (2011). Retrieved September 2, 2011, from Chem4Kids: http://www.chem4kids.com/files/react_acidbase.html


Acids, Bases, and the pH Scale. (2002-2011). Retrieved September 2 , 2011, from http://www.sciencebuddies.org/science-fair-projects/project_ideas/Chem_AcidsBasespHScale.shtm

(Bryophyte)

A bryophyte is a land plant that does not have vascular tissue to circulate liquids.They have enclosed reproductive systems and tissue. Bryophytes do not produce flowers or seeds. Some examples of bryophytes are moss (above) and liverworts.



Works Cited
Bryophyte. (15 April 2007). Retrieved 9/2/20011, from http://www.biology-online.org/dictionary/Bryophyte