How do phosphates from the oceans reach rivers and lakes?
a. Phosphates dissolved in evaporated sea water precipitate over lakes and rivers.
b. Phosphates form sedimentary rocks that are then uplifted by tectonic activity.
c. Phosphates from animal bones collect in rivers and lakes where they slowly dissolve.
d. Phosphate-rich sediment from the ocean floor is carried inland by hurricanes and tropical storms.
b. Phosphates form sedimentary rocks that are then uplifted by tectonic activity.
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The number and location of transmembrane segments in an integral membrane protein can be inferred from the amino acid sequence of the protein by a computer-generated
A) Western blot. B) DNA sequence. C) freeze-fracture replica. D) hydropathy plot. E) prediction of glycosylation sites.
What is the function of a normal MAOA protein?
a. It breaks down neurotransmitters in the synapse. b. It carries neurotransmitters across synapses. c. It is a neurotransmitter. d. It is an enzyme essential in the formation of certain neurotransmitters. e. It is an enzyme responsible for the construction of neurotransmitter receptors.
Explain the process of soil formation by weathering. What will be an ideal response?
________ are weak bonds that are not strong enough to hold atoms together to form molecules but are strong enough to form bonds within and around large molecules
A) Ionic bonds B) Covalent bonds C) Polar covalent bonds D) Hydrogen bonds