Your rich uncle, an eccentric botanist, has died. The will states: "Just like my favorite plants, I keep my wealth buried underground." Where do you dig for his treasure?
A. Dig up the roots of the mistletoe plants, which store large quantities of water.
B. In the herbaceous perennial bed. Perennial stems die each fall, but underground nutrient stores provide energy for regrowth each spring.
C. In the peanut field. Legumes have root nodules which house symbiotic ants that harvest honey, a nutritional "treasure".
D. In the annual plant bed. Annuals store nutrients in extensive underground root systems that allow them to regrow each year.
Answer: B
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When species-specific MHC proteins on xenotransplants trigger a complement-mediated rejection in the recipient, a(n) ____________________ results
Fill in the blank(s) with correct word
Matching. Choose the most appropriate response for each. 1. ___ age structure 2. ___ population growth rate 3. ___ J-shaped curve 4. ___ limiting factor A. describes a population that is experiencing unrestrained growth B. the
birth rate minus the death rate plus any
inward migration and minus any outward
migration
C. the distribution of individuals at each age
level in a population
D. for example, the amount of glucose in a
culture flask containing bacteria
Which phase of microtubule polymerization in vitro would be affected most by adding short microtubules to unpolymerized GTP-tubulin?
A) lag phase B) elongation phase C) addition of tubulin dimers to microtubule (+) ends at the plateau phase D) addition of tubulin dimers to microtubule (?) ends at the plateau phase E) treadmilling
Given the following gel, which protein has a more negative charge?
What will be an ideal response?