The ability of a cell to move from the tissue to which it belongs to other parts of the body is known as
A) metastasis.
B) contact inhibition.
C) immune surveillance.
D) angiogenesis.
A) metastasis.
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Agrobacterium infects plants and causes them to form tumors. You are asked to determine how long a plant must be exposed to these bacteria to become infected. Which of the following experiments will provide the best data to address that question?
A) Determine the survival rate of Agrobacterium when exposed to different concentrations of an antibiotic. B) Measure the number of tumors formed on a plant when exposed to various concentrations of Agrobacterium. C) Measure the concentration of Agrobacterium in different soil environments where the plants grow. D) Measure the number of tumors formed on plants, which are exposed to Agrobacterium for different lengths of time.
How might climate change impact the incidence of a disease? Use a specific example to illustrate your answer
What will be an ideal response?
The process by which pollen is transferred to the ovule is called
(a) transmigration. (b) fertilization. (c) pollination. (d) all of the above.
Bryophytes lack vascular tissue and lignin and therefore cannot
A. sexually reproduce. B. grow tall. C. asexually reproduce. D. produce a gametophyte stage. E. produce a sporophyte stage.