Sunday 4 August 2013

Emily Hayhurst



  21. Strawberries are examples of plants that have asexual reproduction. Asexual reproduction does not involve meiosis or fertilization, and new strawberries are formed from just a single parent. In asexual reproduction, the  "offsprings" are usually exactly same as the parent since no genetic material is exchanged with another.


  22. Corn is one example of a C4 plant. During C4 plants' photosynthesis, carbon dioxide is first fixed into a compound containing 4 carbon atoms before entering the Calvin cycle. They need less water than the C3 plants. Only 1% of earth's plants are C4 plants, and they usually grow in hot, dry environments.


  23.  Cuticle layer of a plant is the non-cellular, outer protective layer of plants. It's like the skin of the plants. It gives support, covers the epidermis of the plants, and protects plants against UV radiation, desiccation, and different agents. This leaf in the picture is covered with a cuticle.


  24. This is an example of gymnosperm cone - male or female. Gymnosperms are plants that doesn't have seeds inside a fruit or flower. Instead, those plants uses these cones to hold the seeds of the plants. Gymnosperm literally means “naked seeds”.



  25. This spider is an example of a r-strategist. R-strategists produce huge number of offspring at once. They mature in a short amount of time, reproduce at a young age, and have a shorter lifespan. The young doesn't get much help from their parents, and mostly fugyre things on their own. They put quantity over quality.


  26.  This picture of the avocado seed growing can be an example of a rhizome. Rhizomes are underground stem that sends out roots and shoots. They are also called rootstock.



  27. This picture contains many many parenchyma cells. Parenchyma cell is thin-walled cell that forms the primary tissue of plants. Internal layers of leaves, parts of stem, soft parts of fruits, and many other things are all made of parenchyma cells.

 
 
 
28. Gibberellins are plant growth hormones that influence plant function and development like stem elongation, fruit growth, and seed germination. Watermelons and grapes are both able to grow with the help of gibberellins.
 


  29. This picture contains xylem. Xylem is a compound woody tissue that conducts water and nutrients upward from the roots, and also provide support for the tree.




  30.  Corn are often a good example of a genetically modified organism. Genetically modified organisms are organisms whose genetic characteristics have been changed by insertion of a modified gene or a gene from another organism. This is all done by genetic engineering.
 
 
 
  31.  Eye color is an example of dominant vs. recessive phenotype. My mom has brown eyes while my dad has blue eyes. Since brown eye color was dominant over blue eye color (the recessive trait), the offspring (that's me) was born with brown eyes.
 

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