Square planar arrangement of cells that forms when round bacteria remain attached to each other during reproduction are called
A. streptococci.
B. sarcinae.
C. tetrads.
D. staphylococci.
Answer: C
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What is the major reason that deforestation is difficult to reverse?
a. The soil is too acidic. b. Trees must have shade to grow. c. Landslides become too frequent. d. Soil nutrient loss and drier, hotter conditions make it difficult for seedlings. e. Seeds cannot spread.
In 2000, 87% of the wild rat populations in Stadtlohn, Germany was resistant to the poison bromadiolone. This
indicates that ____was/were commonly used as a rat poison(s) here, and the rat's resistance is an example of ____ selection.
a. warfarin; directional b. bromadiolone; directional c. both warfarin and bromadiolone; disruptive d. neither warfarin nor bromadiolone; stabilizing e. bromadiolone; disruptive
In salt marshes, only a small portion of primary production is consumed by herbivores
Indicate whether the statement is true or false
Each nephron
A. is associated with a lacteal. B. is surrounded by capillaries. C. has blood running through it. D. secretes glucose.