Sunday, January 5, 2014

Big Idea 3

8.)Flock, Herd, Schooling- A flock can be a group of birds of the same species moving together or staying together. This flock of seagulls are patrolling the lunch quad in search of leftover food. 

17.)Pollinator- A pollinator is a biological organism that extracts pollen from the male anthers of a plant and carries them over to the female stigma of a plant to complete fertilization. This honey-bee is an example of a pollinator because like it shows in the picture, it is extracting the pollen from the male camellia plant to carry it to the stigma. Also, nector provides a great source of protein for honey-bees.

9.)Behavior- Animal behavior is a cognitive action that an animal does because they have a reason to do it. Thus, this squirrel is currently being chased down by another squirrel and it is running away. This is an example of behavior because the squirrel doesn't want to mess with the other squirrel and thus, runs away.

16.)Phenotype- Genotype is the blueprints for the Phenotype. The phenotype is the actual expressed alleles that can be seen by the naked eye. This rooster is an example of phenotype because as one can see from decently far away, it expresses tan and black feathers, and a red beak.

3.)Eukaryote- A eukaryote is a multicellular organism that's cells have membrane organelles with a nuclei that contains chromosomes made of DNA and proteins. Thus, this ash tree is an example of a eukaryote because it is multicellular and it's cells have membrane bound organelles and a nuclei with chromosomes.

7.)Evidence of Different Alleles- Alleles are alternative forms for one specific gene and when different alleles are combined, different phenotypes will be expressed. These flowers are both begonias however the flowers are not the same color. This means that there are different alleles occupying the locus's of each flowers genes.

15.)Meiosis- Meiosis is dividing into two stages, Meiosis 1 and Meiosis 2. In Meiosis one the original cell contains copies of each chromosome, and thus these copies get separated into two daughter cells. In Meiosis 2, each daughter cell's chromosomes separate into two sister chromatids. Thus the end product is 4 haploid daughter cells. These cells will later mature into gametes which are used for sexual reproduction in animals. However meiosis also occurs in plants. These non blooming azaleas behind the cyclamens are an example of meiosis because since meiosis occurs in all land plants, it occurs in the azalea. 

1.)Diploid- An organism that is diploid means that it has two homologous pairs of each chromosome. For animals, the gametes have half the number of diploid chromosomes. Dogs have 78 chromosomes (39 pairs.)
Thus, this chihuahua is diploid with 78 chromosomes.

18.)Prokaryote- A prokaryote is a single cellular bacteria that does not have a nucleus, nor do they have bound ribosomes. I took a picture of soil because this is the home of Actinobacteria. Actinobacteria are very diverse among other prokaryotes in such that they manufacture unusual compounds, utilize metabolic pathways, and contain unique genes. Actinobacteria are prokaryotes because they are single cellular bacteria that do not have a nucleus nor bound ribosomes. 

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6.)Haploid- A haploid organism has only half the number of diploid chromosomes and DNA make up as a diploid organism. This picture of a gardenia that hasn't bloomed yet is an example of a haploid organism because when it does bloom, the anthers of the male haploid flowers will be ready for a pollinating agent to carry it to the stigmas of the female haploid flowers. (Gardenias typically bloom during the early fall)

















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