Ecological pyramids can be upright or inverted, depending on the ecosystem. If the numbers pyramid is inverted, what information does this portray?
a. extinction event
b. ecosystem recovering from catastrophe
c. lower populations in producers than consumers
d. excessive nutrients in the system
c. lower populations in producers than consumers
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Based on their feeding habits, bumblebees are considered __________
a. bulk feeders b. fluid feeders c. filter feeders d. omnivores
The sequential stages through which individuals develop, grow, maintain themselves, and reproduce
are known as the ____.
a. life cycle b. transformation c. catabolic reactions d. anabolic reactions e. central dogma
Which antibody class is found in exocrine secretions?
a. IgG b. IgA c. IgE d. IgD e. IgM
The virus that causes rabies travels up nerve cells to the brain and spinal cord. Which cell structures will allow the virus to move through the nerve cells?
A) Golgi complexes B) nuclei C) microtubules D) pseudopods