The outermost cell layer of herbaceous stems is the:a
bark.
b. cortex.
c. endodermis.
d. epidermis.
e. periderm.
D
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ATP production requires __________
A. light B. electrons C. protons D. light and protons E. light, electrons, and protons
A neurologist diagnoses a patient with damage to the hippocampus. This observation is consistent with the difficulties the patient reports with
A. forming memories of recent events. B. effectively coordinating movements once initiated. C. planning movements. D. maintaining a steady and regular heartbeat. E. perceiving tactile stimulation from different regions of their body.
What causes a membrane potential to return to the normal negative value after an action potential has occurred?
a) opening of a voltage-gated K+ channel b) opening of a voltage-gated Na+ channel c) opening of a ligand-gated Na+ channel d) opening of a voltage-gated K+ facilitated transporter e) closing of a voltage-gated K+ channel
You want to test whether reciprocity explains the evolution of mobbing behavior in birds
You have two sources of birds to choose from: (A) a group of birds from your lab that all originated from the same mating pair, and (B) a group of presumably unrelated birds from the wild. Briefly justify your answer. What will be an ideal response?