Which of the following events occur during prophase I?
breakdown of nuclear envelope
condensation of chromosomes
movement of centrosomes
breakdown of nuclear envelope and condensation of chromosomes
breakdown of nuclear envelope, condensation of chromosomes, and movement of centrosomes
breakdown of nuclear envelope, condensation of chromosomes, and movement of centrosomes
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A quadriplegic patient with damage high in the cervical spinal cord may have a paralyzed diaphragm, such that he cannot ________ on his own.
A. breathe B. swallow food C. close his eyes D. speak
An element that is a component of hemoglobin, myoglobin, and cytochromes is
A) calcium. B) magnesium. C) iron. D) zinc. E) cobalt.
The left primary bronchus is shorter, wider, and more vertically oriented than the right primary bronchus
Indicate whether this statement is true or false.
This figure shows respiratory control centers in the brainstem. What does number 1 indicate?
A. Dorsal respiratory group B. Apneustic center C. Ventral respiratory group D. Pontine respiratory center