How does angiogenesis aid tumor growth?
What will be an ideal response?
Angiogenesis refers to the growth of new blood vessels. Malignant tumor cells promote angiogenesis, which provides additional nutrients to speed up the division and growth of malignant cells.
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Match the disease with the description.
1. hypercortisolism 2. hyperthyroidism 3. involves endocrine stimulation by antibodies 4. Some symptoms mimic diabetes mellitus. 5. associated with overactive osteoclasts 6. Calcitonin may be an appropriate treatment. 7. may be an autoimmune disease 8. may result from adrenal tumor 9. may result from adrenal tumor A. Addison's disease B. Cushing's disease C. Graves' disease D. Paget's disease
Which of the following is NOT part of a mature sperm?
A. Body B. Midpiece C. Tail D. Head
The renal corpuscle connects to the ________.
A. proximal convoluted tubule B. renal convoluted tubule C. loop of Henle D. distal convoluted tubule E. collecting duct
What transport process uses the energy stored in a Na+ or H+ concentration gradient to drive other substances across the membrane against their own concentration gradients?
a) primary active transport b) secondary active transport c) facilitated diffusion d) passive diffusion e) osmosis