Stem cells are?
A) Omnipotent
B) Monopotent
C) Pluripotent
D) Biopotent
Answer is C) Pluripotent
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True or False: There are a number of biological clocks and the circadian clock is just one of them
A. true B. false
Indels:
A. are mutations that arise due to large duplications of DNA. B. are caused by aberrant recombination or by template slippage during replication. C. are mutations in which one base pair is exchanged for another. D. are mutations that inactivate oncogenes, which cause cells to lose control of cell growth. E. are the result of replication errors.
The first land plants were bryophytes, which then branched into ferns, gymnosperms, and finally angiosperms. What advantage did gymnosperms have over ferns?
a. Gymnosperms produce pollen and do not require water to reproduce b. Gymnosperms go through alternation of generations c. Gymnosperms have a vascular system, which allowed them to grow taller d. The gymnosperms can grow larger gametophytes e. Gymnosperms can produce flowers and fruits to aid in seed dispersal
The two main functions of the lymphatic system are
A) coagulating blood and fighting infections. B) producing hormones that regulate the immune system and coagulating blood. C) producing hormones that regulate the immune system and fighting infections. D) returning tissue fluid to the circulatory system and fighting infections.