. If this population of butterflies is in genetic
equilibrium, the frequency of the homozygous
dominant genotype in the new generation will be
a. p2.
b. 2pq.
c. p2 + q2.
d. 490 AA.
e. p2 and 490 AA.
Answer: e
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Salt is often used to melt ice on roads during the winter because it lowers the freezing/melting point of water. When salt dissolves in water, individual Na+ and Cl- ions break away from the salt lattice and become surrounded by water molecules. Why would this cause ice to melt?
A. Hydrogen bonds are formed, and the salt ions bond with O. As a result, it is more difficult for water molecules to bond and form ice. B. Hydrogen bonds are broken, and the salt ions interfere with interactions between H and O. As a result, it is more difficult for water molecules to bond and form ice. C. Hydrogen bonds are broken, and the salt ions bond with O and H respectively. As a result, it is more difficult for water molecules to bond and form ice.
Identify which features belong to Homo habilis versus Homo erectus.
A. Fossils span between 1.9 and 0.3 MYA B. Older species C. Scavengers rather than hunters D. First species to use tools
If each couple only has two children, zero population growth will take place immediately.
Answer the following statement true (T) or false (F)
Which of the following statements is true about photosynthesis and chemical weathering? Select all that apply
A. Both processes release CO2 as a product (i.e., increase atmospheric CO2 levels). B. Both processes use CO2 as a reactant (i.e., decrease atmospheric CO2 levels). C. Both processes are typically associated with the long-term carbon cycle. D. Both processes are typically associated with the short-term carbon cycle.