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Tuesday, December 7, 2010

Science Fair


I have my board and my topic, i just need to complete the papers that will go up on the board....

Friday, July 23, 2010

Vascular Plant tissue





Vascular plant tissue: These are also known as tracheophytes or higher plants, and they are those plants that have lignified tissues for conducting water, minerals, and photosynthetic products through the plant. The plant in this picture is an example oa vascular plant.



Pollen: This is a fine to coarse powder which contain the microgametophytes of seed plants, which produce the male gametes. Insects such as bees carry pollen from flowers and use it for their food.

Meristem




Meristem: This is the undifferentiated plant tissue from which new cells are formed, as that at the tip of a stem or root. The meristem is in all plants.

Lepidoptera



Lepidoptera: This is a large order of insects that includes moths and butterflies. It is one of the most specious orders in the world. The butterfly in this picture is an example of a lepidoptera.

Haploid Chromosome Number



Haploid Chromosome Number: This is the number of chromosomes in a sperm or egg cell, half the diploid number (one pair). The moss in this picture is an example of a haploid.

Gametophyte




Gametophyte: This is the multicellular phase of plants and algae that undergo alternation of generations. Examples of plants that undergo this phase are mosses, liverworts, and hornworts. The moss in this picture undergoes the gametophyte phase.

Exoskeleton



Exoskeleton: This is an external skeleton that supports and protects an animal's body. Examples of animals with exoskeletons are shrimp, beetles, grasshoppers, crabs, and ants.

Epithelial Tissue




Epithelial Tissue: This is a membranous tissue that covers internal organs and other internal surfaces of the body. Skin is an example of epithelial tissue.

Deciduous leaf





Deciduous Leaf: A deciduous plant is a type of plant that falls off or sheds at a particular season or stage of growth. This leaf came from a deciduous plant.

Cellulose




Cellulose: This is an inert carbohydrate (a carbohydrate that has little or no ability to react) (C6 H10 O5). It is mainly obtained from wood pulp and cotton, and is used to produce paperboard and paper. This tree is an example of where cellulose can be obtained from.

Batesian mimicry



Batesian mimicry: This is the protective resemblance in appearance of a palatable or harmless species, to an unpalatable or dangerous species, that is usually avoided by predators. This type of mimicry is very common in butterflies and other animals (such as frogs and snakes).

Bryophyte




Bryophytes: These type of plants are the only land plants whose life history includes a dominant gametophyte stage (stage in which gametes are produced). The moss on the tree is an example of a bryophyte.

Sunday, July 18, 2010

Lipids used for energy storage




Lipids used for energy storage: Lipids are a broad group of naturally occurring molecules which includes fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E and K), monoglycerides, diglycerides, phospholipids,e.t.c. The bottle of vegetable oil in this picture is an example of a lipid used for energy storage.

Long-Day Plants




Long-Day Plants: Long-day plants are those that require a long period of exposure to light each day in order to produce flowers. Examples of these types of plants include beet, radish, and lettuce. The lettuce in this picture is an example of a long-day plant.

Adaptation of an animal



Adaptation of an animal: This picture shows how animals can easily adapt to almost any habitat. This picture shows a beehive that was built by bees in between the doors of a house.

Animal that has a segmented body



Animal that has a segmented body: This picture shows a firefly. The firefly's body is segmented into three parts.

Pine cone- Female










Pine cone- Female: The female cones tend to be more rigid and long lasting than the male pine cone. They also don't provide polllen, but are rather the receptors of pollen. The female cones are those which eventually will release the resultant seed of the fertilization. This is an example of a female pine cone.

Gymnosperm cone




Gymnosperm cone: A gymnosperm is a vascular plant that has seeds that are not enclosed in ovaries (naked seeds). This is an example of a gymnosperm cone.

Thorn of a plant



Thorn of a plant: Thorns are sharp structure or growths on plants. For most plants, thorns help to keep animals away. This picture shows a plant with thorns.

Protein-Fibrous



Protein-Fibrous: Fibrous proteins are long filamentous protein molecules that are found only in animals. They are generally water-insoluble and are usually used to construct connective tissues, tendon, bone matrix, and muscle fiber. Examples include keratins, collagens, and elastins. Hair is an example of fibrous proteins.

Keratin




Keratin: This is a tough, insoluble protein substance that is the main structural constituent of hair, nails, horns, and hooves. This picture of a human being's hair is an example of keratin.

Wednesday, July 14, 2010

Fruit-fleshy with seed



Fruit-Fleshy with seed: These fruits are thick-fleshed and smooth-skinned. Examples of these types of fruits are pears, crab apples, and mangoes. The mango in this picture is an example of a fleshy fruit.

Leaf-Gymnosperm




Leaf-Gymnosperm: A gymnosperm is a vascular plant that has seeds that are not enclosed in ovaries (naked seeds). This leaf is an example of a gymnosperm leaf.

Tuesday, July 13, 2010

Flower Ovary



Flower Ovary: The innermost whorl in the center of a flower is the female reproductive structure, or pistil. The lower part of the pistil is the ovary. The ovary has ovules (premature seeds), which ripen into fruits. This flower has an ovary.

Connective Tissue



Connective Tissue: This is a form of fibrous tissue. Examples of connective tissues include blood and cartilage. This picture of a human being's nose is made up of cartilage.

C4 Plant




C4 Plant: This is a plant which creates a four carbon (C4) sugar as its basic sugar unit when performing photosynthesis. Corn is an example of a C4 plant.

Endosperm



Endosperm: Endosperm is the nutritive tissue within seeds of flowering plants, surrounding and absorbed by the embryo. The meat of the coconut is an example of endosperm.

Autotrophs




Autotrophs: Autotrophs are organisms that produce complex organic organisms from simple inorganic molecules using energy from light or inorganic chemical reactions. Examples of autotrophs are plants and algae. These plants are examples of autotrophs.

Anther and filament of stamen




Anther and filament of stamen: The stamen is the male reproductive organ of a flower. Each stamen has a stalk called the filament. On top of the filament, there is an anther. This flower has a stamen, anther, and filament.

Angiosperm




Angiosperm: Angiosperms are flowering plants, and they are also the most diverse group of land plants. This leaf was gotten from an angiosperm plant.

Cambium





Cambium: This is the layer or layers of tissues, that is the source of cells for secondary growth. It is the layer of actively dividing cells between the xylem and the phloem tissues. The cambium exists inside this tree.

Phloem





Phloem: It is the living tissue that carries organic nutrients, such as sucrose, to all parts of a plant where needed. In trees the phloem is the innermost bark.