Which of the following is a correct description of the shape of frozen water molecules?
A. Ladder.
B. Block.
C. Parallel.
D. Lattice.
What is the difference between saturated and unsaturated fatty acids?
A. Saturated fatty acids contain double bonds, unlike unsaturated fatty acids.
B. Saturated fatty acids contain no double bonds, unlike unsaturated fatty acids.
C. Saturated fatty acids often contain two or more pairs of double bonds, unlike unsaturated fatty acids.
D. There is no difference between saturated and unsaturated fatty acids.
Diets that contain high amounts of saturated fatty acids are linked to what disease type?
A. Renal.
B. Coronal.
C. Cardiovascular.
D. Pleural.
Based on the inherent properties of water molecules, what effect would a large body of water have on the temperature of a climate?
A. Increase.
B. Decrease.
C. Stabilize.
D. Destabilize.
Which of the following descriptions relates to water's property of cohesion?
A. Water beading together on top of a freshly waxed car.
B. An ocean stabilizing the temperature of a region.
C. Water dissolving salt to become salt water.
D. A bottle of water cracking when left in the freezer.
In DNA, adenosine will only bond with which of the following base pairs?
A. Adenosine.
B. Thymine.
C. Guanine.
D. Uracil.
Bacteria live in ____.
A. the water
B. all of these places
C. the human body
D. the soil
What is the cilium-like structure present in certain bacteria cells that allows them to attach to a host tissue?
A. tentacles
B. cilia
C. flagella
D. fimbria
Which of these is a disease not caused by bacteria?
A. cholera
B. syphilis
C. diphtheria
D. Parkinson's
Thigmotropism is the oriented growth of an organism in response to ____.
A. light
B. heat
C. physical contact
D. gravity
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