Jim Gilbert
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Tracking Changes in Photoperiod Around the Globe

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  • challenge question #1

    Thu, 20 Mar 1997 15:11:23 -0700 (MST)

    Hi! My name is Yalile. I am from El Paso, Texas. The name of the
    school I attend is Montwood High. I have an answer to the Challenge
    Question #1.
    To begin, photoperiod is the number of daylight hours best suited to
    the growth and maturation of an organism. Humans and plants depend on the
    sun to survive. In order for the plants to grow, they need the heat and
    light of the sun. So if the season changes from summer to winter, then
    the plants don't receive the sunlight they need. If it is too cold and
    the plants don't get the sunlight, they will die. The animals that depend
    on plants will also die as will as humans because plants give off the
    oxygen that we breathe. Predators, such as wolves, tigers, lions,
    cheetahs, etc., eat prey, for example: rabbits, deer, etc. The prey eat
    plants. It is all like a chain. During winter, there isn't as much food
    for animals as there is in the summer or maybe spring.
    I don't know if you understood my answer to the question. I think it
    is pretty self-explanatory. I am not sure if the answer is correct. I
    hope to hear a response from you soon.

    Yalile Chavez