Patterns of species diversity for pelagic and benthic organisms appear to be influenced by the ________ of primary production rather than by the total productivity
Fill in the blank(s) with correct word
seasonality
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Flight requires greater efficiency of oxygen delivery. Therefore, birds have a unique respiratory system that allows them to filter oxygen. During the initial inhalation, the air passes through the trachea and into the . During the second inhalation, the oxygen-depleted gas moves to the , and is then exhaled.
A. posterior air sacs; anterior air sacs B. lamellae of the gills; anterior air sacs C. anterior air sacs; posterior air sacs D. lamellae of the gills; bronchioles E. bronchioles; capillaries
Refer to Figure 42-2. The neuron labeled 3 is:
a. an interneuron in the gray mater of the cord.
b. an interneuron in the white mater of the cord.
c. a sensory neuron in the gray mater of the cord.
d. a sensory neuron in the white mater of the cord.
e. a motor neuron in the gray mater of the co
How does the greenhouse effect work?
A) Rocks, soil, and water on Earth's surface absorb sunlight energy and radiate it as heat. B) Sunlight energy passes through the transparent water of the oceans and heats up the Earth's core. C) Some sunlight that hits Earth radiates toward space, but some is held by the atmosphere. D) All the sunlight energy striking Earth bounces off the planet and radiates into space.
Facilitated diffusion in bacteria require a
What will be an ideal response?