Unlike terrestrial plants, submerged aquatic plants lack
A) leaves.
B) chlorophyll.
C) stomata.
D) stems.
C
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RIPs as Cancer Drugs Melissa Cheung and her colleagues incorporated a peptide that binds to skin cancer cells into the enzymatic part of the E. coli enterotoxin RIP. The researchers created a new RIP that specifically kills skin cancer cells, which are notoriously resistant to established therapies. Which cells survived best at 10–6 grams per liter RIP?
1.human cancer cells of the skin
2.breast
3.liver
4.prostate
A thermometer measures
a. the degree of hot or cold. b. temperature. c. a and b. d. none of the above.
Four of the five activities listed below are carried
out by the same type of bee. Select the exception. a. lay eggs b. feed larvae c. guard hive d. clean and maintain nest e. forage for food
Draw and label a generic microbial growth curve, including the points at which metabolites are formed.
What will be an ideal response?