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Ch -
Plants and Animals
Define the following terms ..
a)
Life span
6 Annual Plants >
c) Stomata
d)
Mammals
e) spiracles
Answers
Answer
Life span - the period of time between the birth and death of an organism.
6 Annual Plants - Vinca, Zinnia, Ageratum (floss flower) , Angelonia (summer snapdragon) , Impatiens and Begonias.
Stomata - Stomata are very small openings in membranes, particularly in plants, through which water and gas pass. An example of stomata are microscopic pores in leaves where plants release gases.
Mammals - Mammals (from Latin mamma "breast") are vertebrate animals constituting the class Mammalia (/məˈmeɪliə/), and characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones.
Spiracles - A spiracle or stigma is the opening in the exoskeletons of insects and some more derived spiders to allow air to enter the trachea. In the respiratory system of insects, the tracheal tubes primarily deliver oxygen directly into the animals' tissues.