To describe evolution as a "scientific theory" means that __________.
Fill in the blank(s) with the appropriate word(s).
Answer: it is a broad model that is supported by many observations and much experimental evidence
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Many seeds are capable of surviving in a dormant or quiescent state for many years, or even centuries. Such seeds are not usually damaged by environmental extremes that would kill most other organisms
What main adaptation prevents the seeds from germinating before they are dispersed, and allows them to survive until environmental conditions are favorable for germination and seedling growth? A) A seed coat B) Two cotyledons C) A large quantity of stored nutrients D) Desiccation to 2-20 percent water E) Double fertilization
The type of epithelial tissue that forms a single layer of cube-shaped cells is
A. simple squamous. B. simple cuboidal. C. stratified cuboidal. D. simple columnar. E. stratified columnar.
When compared to other age groups, young adults have lower rates of office-based doctor visits. This is primarily because _____
A. young adults are healthier and don’t need to visit the doctor B. young adults are typically too busy to go to a doctor appointment C. young adults struggle with the transition from pediatric/adolescent care to adult care D. young adults usually get their health care from their university
A (colony/habitat/biofilm) is a mixed population of microbes growing together on surfaces.
Fill in the blank(s) with the appropriate word(s).