Which form of electromagnetic radiation has the shortest wavelength?
A) Gamma rays and X rays
B) Ultraviolet light
C) Visible light
D) Infrared light
A) Gamma rays and X rays
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Ribbed mussels (Modiolus demissus), fiddler crabs (Uca spp.), and marsh periwinkles (Littorina spp.) are the dominant animals of a high salt marsh
Indicate whether the statement is true or false
Gigantism is caused by:
a. hypersecretion of growth hormone during adulthood. b. hyposecretion of thyroxine during adulthood. c. hypersecretion of growth hormone during childhood. d. hyposecretion of thyroxine during childhood. e. hypersecretion of epinephrine during childhood.
____ is the degree of adaptation to a specific
environment.
a. Fecundity b. Fertility c. Fitness d. Adaptation e. Natural selection
Cyanobacteria
1.produce oxygen. 2.have a blue-green color. 3.are photosynthetic. 4.played a very important role in the evolution of life on earth. 5.All of the options are correct.