What is a cladogram?
a. A diagram of radioactivity
b. A diagram showing lines of descent
c. A demonstration of genetic variability
d. A geographical distribution of organisms
e. A similar structure found in different organisms
b
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The defining characteristic of a stem cell is
A) self-repair. B) self-renewal. C) the ability to turn into a cancer cell. D) its origin from a progenitor cell.
The part of the male reproductive system where sperm mature is known as the ____
a. epididymis b. bulbourethral gland c. testis d. seminal vesicle e. ejaculatory duct
In a neuron maintaining a resting potential, K+ is encouraged to move out the neuron by favorable _________ gradient.
A. concentration B. electrical C. concentration and electrical
Cartilage tears
What will be an ideal response?