The minimum level of depolarization required to initiate an action potential in an excitable cell is called the ____
potential.
a. electrical
b. refractory
c. membrane
d. resting
e. threshold
ANSWER: e
Biology & Microbiology
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The fertilized ovum that contains genetic material from both parents, for a total of 46 chromosomes. _____
A) Human chorionic gonadotropin
B) Zygote
C) Chorion
D) Morula
E) Folic acid
F) Fertilization
G) Blastocyst
H) Parturition
I) Cleavage
J) Ovulation
K) Placenta
L) Implantation
Biology & Microbiology
The __________ is a circular molecule of DNA that resides in a region of cytoplasm called the __________. Fill in the blank(s) with the appropriate word(s)
Biology & Microbiology
How many times greater than the calculated background rate is the current rate of extinction estimated to be?
A) 100 B) 50 C) 10 D) 2
Biology & Microbiology
Why is the sense of smell associated with memories and emotions?
What will be an ideal response?
Biology & Microbiology