Many species of terns nest on the ground in seabird colonies. However, if nests are too close together, aggression will
break out. This tends to produce a(n) ____.
a. near-uniform population distribution
b. opportunity for predation
c. clumped population distribution
d. opportunity for exponential growth
e. random population distribution
ANSWER: a
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Dendritic cells are similar to cytokine-producing cells in that both bridge innate and adaptive immunity in the host.
Answer the following statement true (T) or false (F)
You have an opportunity in biology lab to observe the prepared, stained karyotypes of a stallion, a mare, and their foal offspring horses. Banding patterns of some of the autosomes from the foal match those of the stallion, while others from the foal match those of the mare. This variability is produced in meiosis due to
A. random alignment of chromosome pairs. B. semiconservative replication. C. random fertilization. D. mutation. E. nonrandom fertilization.
What is produced by the pancreas to neutralize stomach acid?
What will be an ideal response?
What is the main component of an animal cell membrane?
A. cholesterol B. glycolipids C. aquaporins D. polynucleotides E. phospholipids