What would be the ultimate effect on an ecosystem if decomposers were eliminated?
a. The consumers would have to eat twice as much.
b. The rate of photosynthesis would increase.
c. All life would eventually cease as nutrients would no longer be available.
d. Energy flow between producers and consumers would increase.
e. Producers would outgrow consumers due to the excess of carbon dioxide.
C
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The division of the cell's cytoplasm in a eukaryotic cell is known as:
A. cytokinesis. B. cell fission. C. mitosis. D. Answers a and c are both correct.
If an otherwise healthy 20 year old male were to take large amounts of testosterone supplements in order to build muscle mass, what would be the likely effect(s)? Check all that apply.
_____ Over expression of secondary sex characteristics _____ Increased levels of LH and FSH _____ Increase in spermatogenesis _____ Decrease in levels of GnRH
If pigments from a particular species of plant are extracted and subjected to paper chromatography, which of the following is most likely?
A) Paper chromatography for the plant would isolate a single band of pigment that is characteristic of that particular plant. B) Paper chromatography would separate the pigments from a particular plant into several bands. C) The isolated pigments would be some shade of green. D) Paper chromatography would isolate only the pigments that reflect green light.
________ are tiny blood vessels leading away from capillaries to veins.
Fill in the blank(s) with the appropriate word(s).