Answer the following statements true (T) or false (F)
1. A bacterial cell would swell and burst if placed in an extremely hypertonic solution.
2. Pasteurization is a method of sterilizing liquids.
3. Archaeans that live in or near hydrothermal vents at the bottom of the ocean are halophilic, barophilic, and thermophilic.
4. Lyophilization is an excellent method of killing microorganisms.
5. Antiseptic technique is a type of aseptic technique.
1. FALSE
2. FALSE
3. TRUE
4. FALSE
5. TRUE
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If all offspring of a cross have the genotype Aa, the
parents of the cross are most likely a. AA x aa. b. Aa x Aa. c. Aa x aa. d. AA x Aa. e. none of these.
Which term refers to a fruit that develops from a single ovary in a single flower?
a. simple fruit b. accessory fruit c. multiple fruit d. aggregate fruit
If a person is unable to clot blood properly, which of the following might be lacking?
A) red blood cells B) platelets C) ions D) white blood cells
How old is the oldest fossil we have food of our own species, Homo sapiens?
A. About 3 thousand years old B. About 6 million years old C. About 6 thousand years old D. About 300 thousand years old