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Jaelyn Fulton									May 17/2011

Chapter 20 Vocabulary:

20-1 Characteristics of Algae: accessory pigment- compound other than chlorphyll that absorbs light energy and passes it on to the primary photosynthetic pigment (chlorophyll)

20-2 Groups of Algae: colony- group of cells that are joined together and show few specialized structures filament- in a plant, the long thin structure that supports the anther; in algae, a threadlike colony formed by many green algae holdfast cell- specialized cell that attaches an algal filament to the bottom of a lake or pond

20-3 Reproduction in Algae: alternation of generations- the switching back and forth between the production of diploid and haploid cells zoospore- haploid cell invovled in asexual reproduction in algae isogamy- condition in which the gametes of a species appear identical syngamy- the fusing of algal gametes sporophyte- diploid plant that produces spores gametophyte- haploid plant that produces gametes heterogamy- production of two different kinds of gametes within the same species egg- female gamete sperm- male gamete

Jaelyn Fulton								May 17/2011

Chapter 20 Questions ( mc 1-8 )

1. Unlike most plants, algae lack an internal system of tubes. 2. Red algae are able to live in deep ocean water. 3. Algae take in their nutrients through their cell membrane. 4. Some single-celled, eukaryotic algae are included in the kingdom Fungi. 5. Red algae have a special pigment that enables them to absorb energy from blue light. 6. Green algae live in each of the following environments except dry land. 7. Filaments of some forms of green algae are attached to the bottom of a lake or pond by a holdfast cell. 8. The largest algae in the world are the green algae.

Mathematics is a key skill that we must learn in life. People look at math as a boring, pointless subject. What they don't know is that when you look deep into everything we do, mathematics are used to some degree. When you are driving to your favourite summer holiday location, you estimate how long it will take depending on how many miles it is. In the morning when getting ready for school, you constantly check the time. Architects have to measure the exact angle that a beam must be put in at on a new building. These are all examples of how we use math in our everyday lives. The constant question from teens is " Who needs math?.. we wont ever use it!" and the truth is we will. Students in high school put the idea in their mind that they can't do it. This sets a barrier between reality, and cause you to slack off. If you start to believe and put in efforts, math will be simple. One way that we could keep the people interested is by making math fun. We could include hands on exercises, musical contributions to equations, and class surveys. Keeping the fun in math will be the way to keeping the kids interested. Watching the video on how mathematics are important made me realize how important it really is. It doesn't really matter which career I choose to pursue, it will need math to some degree. For example, if I were to become a fashion designer I would need to learn measurements. If I were to become a famous rock star I would need to know all about my money. And if I were a doctor I would need to know the temperatures of my patients. The career that I've been thinking about pursuing is either in the business area, or the arts.