Fossils of most of the animal phyla present today were first found during the
What will be an ideal response?
Cambrian period
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The cytoplasmic membrane could best be described as
A) an impermeable barrier. B) a passive conduit for intracellular transport. C) a highly selective permeability barrier. D) a rigid structure that protects the cell.
Large, uniform distances typically separate individual panda bears from each other. What type of population distribution do pandas exhibit?
A. random distribution B. logistic distribution C. clustered distribution D. over-dispersed distribution E. sinusoidal distribution
A stretch receptor is classified as a
a. chemoreceptor. b. mechanoreceptor. c. photoreceptor. d. thermoreceptor. e. all of these.
People with a large amount of a certain type of connective tissue are least likely to be sensitive to cold. Which type of tissue is this?
A. Cartilage B. Adipose C. Blood D. Dense connective E. Loose connective