Explain why malignant tumors are more dangerous than benign tumors
What will be an ideal response?
Malignant tumors are invasive and have the potential to metastasize in the body. Metastasis is the process in which malignant cells break off from the primary tumor and move through body fluids, such as blood or lymph. When the malignant cells land in new areas of the body, secondary tumors develop.
You might also like to view...
You grow two trays of Arabidopsis plants under identical conditions, except that one tray of plants is exposed to a gentle breeze for several hours each day
Compared to plants grown in calm conditions what would you expect to see in the wind-exposed plants? I. changes in the expression of many genes II. taller flower stalks III. shorter flower stalks IV. more flexible cell walls V. no changes in 2nd messengers VI. increases in 2nd messengers and/or phosphorylated proteins VII. increased levels of Pfr VIII. stiffer cell walls. A) I, III, VI, VIII B) II, IV, V, VII C) III, IV, VII D) VI, VII, VIII E) wind has no effect on plant development
An exergonic reaction is considered to be:
a. spontaneous. b. potentially spontaneous. c. endergonic. d. nonspontaneous. e. energy requiring.
When the internal urethral sphinceter doesn't work and semen goes into the bladder it is called what?
What will be an ideal response?
In which type of cell is very little differentiation observed?
a. inactive liver cell b. brain cell c. sperm cell d. fertilized egg cell