Friday, August 7, 2015

1. Adaptation of an animal

The picture represents the adaptation of an animal. An adaptation of an animal is a helpful mutation in an animal, enabling it to survive better in its environment. The picture shows a nocturnal snake, the Northern Copperhead, has slit pupils, a nocturnal adaptation that opens wide to allow more light to enter the snake’s eyes and enhances its night vision. It also has camouflaged skin to blend in with the forest floor, eliminating chances of being noticed, whether it be by a predator or its prey. 

2. Amniotic Egg

This picture represents an amniotic egg. An amniotic egg is a shelled egg containing a fluid-filled sac and yolk to nourish and develop the embryo within. This type of egg is produced by many animals including the chicken that laid this egg pictured.

3. Animal that has a segmented body

        The picture of a lobster represents an animal that has a segmented body. Animals’ segmented bodies are characterized by the division of the body into functional units or repeating sections, such as in worms. Although the lobster is a crustacean, whose body is composed of body segments that are grouped into three integrated units, the head, thorax, and abdomen. From each body segment grows a pair of appendages.

4. Anther and filament of stamen

 This picture shows the anther and filament of the stamen. In a flower, the anther and filament is the reproductive part of the flower where pollen is produced. The anther has the pollen, and is located on top of the supporting filament, the stalk-like structure. This picture shows the red filaments and anthers containing pollen on top of the flower.

5. Autotroph

This picture represents an autotroph. Autotrophs are organisms that are able to produce their own nutrition for sustentation without needing to consume other organisms. This self-made nutrition is formed from simple inorganic substances such as carbon dioxide via photosynthesis and chemosynthesis. Autotrophs include plants, such as the one pictured, and many types of bacteria.

6. Bilateral symmetry

        Butterflies are organisms characterized with bilateral symmetry. Bilateral symmetry is the structural arrangement of an organism in which the body is symmetrical on either side of a central axis. This butterfly is symmetrical when you draw an axis in the middle of its body; the wings and antennae are the same on both sides.

7. Connective Tissue

        This picture represents connective tissue. Connective tissues hold organs in place and bind different parts of the body together, as suggested by the name. The picture of a wrist joint is an accurate representation, because within the joint are connective tissues like tendons and ligaments that hold the arm and hand together.

8. Cuticle layer of a plant

     This leaf, like all leaves, can depict the cuticle layer of a plant. The cuticle is the outermost, protective layer of the leaf, covering the plant organs. It is waxy and hydrophobic, allowing it to protect the plant by minimizing water loss and defending it from harmful pathogens. This picture shows an up-close shot of the leaf, where the smooth, waxy cuticle covering is exemplified.

9. Ectotherm

 This picture of fish represents animals known as ectotherms. An ectotherm is an organism that primarily gain heat through the environment as opposed to producing its own body heat. Because ectotherms cannot regulate their own body temperature, many of their behaviors during the day and night contribute to maintaining a stable internal temperature. Fish are an example of ectotherms that depend primarily on the environment for heat.

10. Endotherm

       The picture of a chipmunk is an example of an endotherm. Endotherms are animals opposite of ectotherms; they produce and regulate their own body temperature by metabolism. Chipmunks are one of such warm-blooded animals that use metabolism to regulate their internal body temperature.

11. Epithelial Tissue

This picture represents epithelial tissue. Epithelial tissue covers the whole surface of an organism’s body and is made up of cells that are densely packed and in multiple layers. My skin is an example of epithelial tissue, because it covers my entire body surface.

12. Eukaryote

    This picture’s subject is an example of a eukaryote. A eukaryote is an organism that has complex and organized cells in which contain a nucleus with DNA. All multicellular organisms are classified as eukaryotes although some are also single-celled. The human is an extremely multicellular organism, therefore a eukaryote.

13. Exoskeleton

This picture of a crab is an example of an exoskeleton. Exoskeletons are structures found in some animals, characterized by having a rigid external covering that is used for both protection and support. Many of the animals with exoskeletons are arthropods like the crab in the picture. The crab’s hard outer shell protects its vital organs, acting as a sort of armor, while also supporting its structure.

14. Genetically Modified Organism

        Rice is a common example of genetically modified organisms. A genetically modified organism, or GMO, is an organism whose genetic material has been purposely altered by man using genetic engineering to improve or obtain desired results in the organism. These results are alterations that would occur if following natural reproduction patterns. Many foods such as rice are now being genetically modified to resist certain strains of disease so that during the farming process, it is easier to produce. However studies have shown adverse effects of consuming GMO products.

15. Gymnosperm Cone

Pinecones are examples of gymnosperm cones. A gymnosperm is a vascular plant that does not bear seeds within a fruit, but are found in gymnosperm cones instead and are not visible. Pine trees produce pinecones that contain their seeds for future generations.

16. Homeostasis

This picture represents homeostasis. Homeostasis is the maintenance of stability and equilibrium within an organism’s internal environment, despite external changes. In humans, sweating is an important function that helps maintain equilibrium inside our bodies when the outside environment is higher than our body temperature. The sweat is supposed to help our bodies cool off from the heat.

17. Hydrophilic

This is a picture of salt dissolved in water, representing hydrophilicity. A hydrophilic substance is a “water lover” or is readily absorbed or dissolved into water through hydrogen bonding. The salt is an example of a hydrophilic substance, because it dissolves easily in water, due to both substances’ polar nature.

18. Hydrophobic

This picture of the relationship between water and oil demonstrates hydrophobicity. Hydrophobic substances are those that are insoluble in water, seeming to repel it although no forces are involved. Many hydrophobic substances are those that are oily, fatty, or waxy. The olive oil in the cup refuses to dissolve into the water, showing it to be hydrophobic.

19. Long-day Plant

  This bag of spinach is an example of a long-day plant. Long-day plants require a minimum amount of hours of sunlight in order to flower. These plants thrive when the amount of sunlight received exceeds the minimum hours needed to survive. Examples of long-day plants include carnations, lettuce, and spinach like the ones in the photo.


20. Modified stem of a plant

This picture represents a modified stem of a plant. Modified stems are stems that have specialized in order to perform a purpose in addition to the function of a normal stem. These modifications usually are an advantage to the plant, enabling it to better survive in its environment. The stem of the rose has been modified to its advantage by growing thorns for protection in addition to its normal functions.

21. Mutualism

      
  The relationship between the clownfish and the sea anemone is an example of mutualism. A mutual relationship is one of three symbiotic relationships in which two organisms of different species work together to benefit both parties. The example of the clownfish and seas anemone is one such relationship. The clownfish is the only fish able to survive the sting of the poisonous sea anemone’s tentacles. The sea anemone allows the fish to make its home in it, and in return, the clownfish will clean, provide nutrients through waste, and scare away predatory fish for the anemone.
 

22. Pollinator

    
 The bees in the picture represent pollinators. A pollinator is a critical figure in the plant reproductive process. It moves the pollen from male anthers to the female stigma of the flower to accomplish fertilization. Examples include birds and insects. The bees in the picture are one of the most well-known pollinators, spreading pollen as they locate nectar from flowers.

23. Radial Symmetry

        This picture represents radial symmetry. Radial symmetry is body arrangement of an organism in which all sides are symmetrical around a central axis. The arms of the starfish are symmetrical to each other, radiating outward from the central point in the middle of the starfish’s body.

24. Tropism

This picture demonstrates tropism. Tropism is the tendency of a plant to grow in the direction to a stimulus source or away from a negative one. For the tree pictured, the stimulus is light and the also the inability to grow where the wall is. The branches reach out towards an area that is easier to find light.

25. Xylem


        The trunk of this tree is an example of xylem. Xylem is a type of vascular tissue in plants that function to transport water and nutrients from the root to the leaves and provide structural support. It is found throughout the plant and is the primary component in the wood of this tree. Within the tree trunk is the xylem tissue that conducts water and minerals from the tree roots to its branches and leaves.