The root nodules on this soybean plant contain anaerobic bacteria that help the plant by:

1.absorbing water
2.fixing nitrogen
3.increasing root surface area
4.helping anchor the plant in the soil
2

Biology & Microbiology

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Which group consumes animals?

a. carnivores and herbivores b. carnivores and omnivores c. omnivores and herbivores d. carnivores only e. herbivores only

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ADH and oxytocin are released by the

A. pineal gland. B. posterior pituitary gland. C. adrenal gland. D. anterior pituitary gland

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The accompanying figure illustrates a ____

a. book lung b. tracheal system c. set of gills d. lung micrograph e. circulatory system

Biology & Microbiology

An example of an effector is a(n):

a. sense organ b. efferent neuron c. afferent neuron d. muscle e. interneuron

Biology & Microbiology