Which of the following differentiate(s) humans from other living things?
1.cellular chemistry and organization
2.evolutionary traits
3.ability to build homes
4.use of water and fire
1
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In eukaryotic organisms, the processing of the 45S rRNA into 5.8S, 18S, and 28S rRNA occurs where?
A. In the cytoplasm B. In the nucleolus C. In the endoplasmic reticulum D. In the Golgi body E. Throughout the cell
In many bird and mammal species, males compete
for females, but females do NOT compete for males because a. males are larger than females. b. females are larger than males. c. females produce fewer gametes than males do. d. females compete for territory. e. males produce pheromones but females do not.
Which form of calcium is found in bones?
a. calcium citrate b. calcium carbonate c. calcium lactate d. calcium bicarbonate e. calcium phosphate
Which of the following proteins would you expect to be a coded for by a proto-oncogene?
A) a growth factor receptor B) a DNA repair protein C) a protein involved with the G1 checkpoint D) a caspase E) a DNA replication protein