Based on the graph above, the threshold voltage appears to be approximately



A) 60 mV.

B) 30 mV.

C) 0 mV.

D) -30 mV.

E) -60 mV.


E) -60 mV.

Biology & Microbiology

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At the endodermis is a thin band of hydrophobic material that prevents water passage between cells called the:

A. Casparian strip. B. cortex. C. medulla. D. plasmodesmata. E. parenchyma.

Biology & Microbiology

Which of the following is the greatest threat to

most species survival?

a. overharvesting b. pollution c. habitat loss d. oceanic desalinization e. none of these is a threat to species survival

Biology & Microbiology

Which of the following is a habitat?

a. predator b. intestinal tract c. parasite d. producer e. decomposer

Biology & Microbiology

A toad that eats a bee and is stung tends to avoid eating bees afterward. This is an example of ________ learning

Fill in the blank(s) with correct word

Biology & Microbiology