After fertilization, the first cell division is completed
A) within a few seconds.
B) within the hour.
C) about 6 hours later.
D) in 12 hours.
E) about 30 hours later.
E
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What is the letter associated with the dark bands in a sarcomere?
A. M B. A C. Z D. I E. H
Cells contain organelles called vaults which are thought to transport molecules synthesized in the nucleus such as mRNAs
Indicate whether the statement is true or false
What is the major factor controlling stroke volume during resting periods?
A. Sympathetic input B. Parasympathetic input C. Venous return to the heart D. Peripheral resistance changes
One day, Julien is stung by a bee while he is outside and experiences anaphylaxis (a severe allergic reaction). His throat swells shut and he begins to suffocate. Luckily, a doctor finds Julien, recognizes that he cannot breathe, and decides to perform an emergency surgery that will allow him to breathe even though his throat is closed. The doctor performs a ________.
What will be an ideal response?