Generation time refers to:
a. the number of years it takes for a generation to die.
b. the amount of time required to replicate the DNA in a cell.
c. the time it takes to complete one cell cycle.
d. the time required for an individual in a species to achieve sexual maturity.
e. the time it takes for a new mitotic spindle to form.
C
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Herbivores are unable to digest ________ and thus rely on the help of specialized bacteria and protozoa living in their digestive tracts
Fill in the blank(s) with correct word
Which statement best supports why animals most likely evolved in the ocean?
a. The ocean water provided buoyanc
b. They did not require a skeleton for support. c. Internal fluid and salt balance was easy to maintain. d. Reproduction was independent of internal fertilization. e. The changeable temperature facilitated natural selection.
If a human female has 2 Barr bodies per cell, it is almost certain that
A. her father had 1 Barr body per cell. B. her mother also had 2 Barr bodies per cell. C. she is genetically a normal fertile female. D. she is genetically a male with female characteristics. E. she developed from a fertilized egg with 3 X chromosomes.
Tuberculosis (TB) is a reemerging disease that is increasing in the United States because of an increase in the number of immunocompromised patients, such as those with AIDS. Name two factors that make this illness particularly troublesome to track and
treat. What will be an ideal response?