Phosphorus is typically in short supply in aquatic and terrestrial ecosystems
Indicate whether the statement is true or false
TRUE
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What is NOT a reason that the kidneys are particularly prone to damage caused by immune complexes?
A. Kidney blood vessel wall cells have receptors for antibodies on them, which makes them soak up antibodies (or in this case, immune complexes) from the bloodstream. This blocks the kidneys up and causes them to malfunction and become damaged. B. Blood is pushed through the kidneys at a very high pressure-any blockage of the vessels (such as what might be caused by immune complex deposits) can lead to ruptures/inflammation and damage. C. While blood vessel walls do NOT have receptors for antibodies, large immune complexes forced through small diameter vessels can become embedded within them. This can trigger complement system inflammation and cell destruction. D. Trapped immune complexes that initiate inflammation can attract neutrophils. The neutrophils degranulate in the area of the immune complexes, leading to cell/tissue destruction.
Answer the following statements true (T) or false (F)
1. In aquatic ecosystems, zooplankton are consumed by phytoplankton. 2. Zooplankton are heterotrophs. 3. Biomass is always highest at the lowest trophic level of a food web. 4. Most of the Earth's phosphorus is trapped in sedimentary rocks. 5. Assimilation is the process by which inorganic substances are incorporated into organic molecules.
Different methodologies can be used to obtain the same information about a DNA sequence
a. True b. False
Which body part is most sensitive to somatosensory stimuli?
a. arm b. palm of hand c. cheeks d. back of hand e. tip of tongue