Animals share a common origin with choanoflagellates
____________________ Indicate whether the statement is true or false.
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Mr. Johnson was becoming slightly deaf. To test his hearing, his doctor held a vibrating tuning fork tightly against Mr. Johnson's jaw. This sent vibrations through the bones of the skull, setting the fluid in the cochlea in motion. Mr. Johnson could hear the tuning fork this way, but not when it was held away from the skull a few inches from his ear. Where was the hearing problem most likely to
be? A. auditory cortex of Mr. Johnson's brain B. auditory nerve leading to Mr. Johnson's brain C. hair cells in the cochlea D. tympanum or the bones of the middle ear E. fluid of the cochlea
Compare and contrast a single, weak contraction of a muscle fiber, a twitch summation, and tetanus
What will be an ideal response?
Rosalind Franklin was the first scientist to
work with a. the "wet" form of DNA. b. dehydrated DNA. c. DNA from eukaryotic cells. d. X-rays in biological research. e. and learn from Watson and Crick.
The preprophase band is specific to plant cells, and:a
appears after mitosis begins. b. forms inside the nucleus. c. determines the plane of cell division d. is found in both plant and animal cells. e. is composed of cellulose