Aditi Desai
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grg

Rhizome - Ginger

A rhizome is a horizontal stem of a plant that is found underground, usually sending out roots and shoots from its noods. Rhizomes are also called "creeping rootstalks" or "rootstocks". If a rhizome is separated into multiple pieces, each piece can give rise to a new plant. This is a version of vegetative reproduction.

Posted by Guest  On Sep 01, 2011 at 6:42 PM
  

lettuce
Long Day Plant - Lettuce

Long day plants fall under photoperiodism. Photoperiodism is the reaction of plants to the length of day or night. Long day plants require fewer than a certain number of hours of darkness in each 24-hour period to induce flowing. Lettuce is an example of a long day plant.

Posted by Guest  On Sep 01, 2011 at 6:38 PM
  

ffee
Redox reaction means oxidation reduction reaction. Oxidation is the gaining of bonds to oxygen. Reduction is the gaining of hydrogen. An example of a redox reaction is rust. Rust forms on iron objects left to water, for example, for a long time. The iron turns into rust, which is a form of oxidized iron. 


Posted by Guest  On Sep 01, 2011 at 6:35 PM
  

Asexual Reproduction - Garlic 

Asexual reproduction is a type of reproduction by which offspring come from a single parents and inherit the genes of that parent only. Vegetative reproduction is a type of asexual reproduction. It is found in plants produced without the production of seeds or spores. 


Posted by Guest  On Sep 01, 2011 at 5:47 PM
  
redant
The red ant in the center of the picture displays a segmented body part. Segmentation of a body part means that each organism has different parts to it. For example, their body isn't necessarily in "one part". An ant is an example of a segmented body part because it has three body parts in total.
Posted by Guest  On Aug 31, 2011 at 6:02 PM
  
analogus

Analogous structures are features of different species that are similar in function but not in structure and do not derive from a common ancestral feature. An example is a bird. With birds compared to insects -- they both have wings to fly. However, their wing structure is very different.

Posted by Guest  On Aug 31, 2011 at 5:54 PM
  
regerger
I unfortunately could not get all close and personal with a bird, but the faint black object in the sky is a bird. A bird has eukaryotic cells.
A eukaryote is an organism whose cells contain structures that are enclosed within membranes.  Eukaryotes have a nucleus and include plant and animal cells. Therefore, birds have eukaryotic cells. 

Posted by Guest  On Aug 31, 2011 at 5:53 PM
  
frefwer

Gymnosperms are a group of seed-bearing plants that include conifers, cycads, ginkgo, gnetales. Gymnosperm seeds develop either on the surface scale or leaf-like appendages of cones, or at the end of short stalks. This is a picture of a conifer tree. 


Posted by Guest  On Aug 31, 2011 at 5:49 PM
  
Spores 
spore

A spore is a structure that is adapted for dispersal and survives for extended periods of time in unfavorable conditions. Dandelions are examples of spores. When the wind blows, the seeds on dandelions disperse and blow away.

Posted by Guest  On Aug 31, 2011 at 5:48 PM
  
cellrespiration

Cellular respiration is used for the production of ATP. Oxygen is consumed, as well. Respiration is one of the key ways a cell gains useful energy to fuel cellular reformations. There are four stages to cellular respiration: glycolysis, transition reaction, Krebs cycle, and the electron transport chain. At the end of these four stages, 36-38 molecules of ATP are produced.

Posted by Guest  On Aug 31, 2011 at 5:46 PM
  
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