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Biology & Geology

Chapter 2 - Hormonal Coordination in Living Organisms

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Chapter 3 - Reproduction in Living Organisms

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Chapter 4 - Immunity in Living Organisms

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Chapter 5 - Molecular Biology - DNA Structure and Function

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Chapter 6 - Molecular Biology - RNA, Protein Synthesis and Genetic Engineering

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Quiz

Lesson 2 Quiz: Rock Cycle, Minerals, Crystallography and Weathering

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1.
Which of the following minerals exhibits absolute chemical resistance to carbonation weathering by acidic rain?
Quartz
Feldspar
Calcite
Olivine
2.
Absolute zero temperature (0 Kelvin or -273.15 °C) is defined physically as the theoretical temperature at which:
Atmospheric air completely combusts
The volume and pressure of an ideal gas theoretically extrapolate to zero and translational molecular motion reaches its quantum minimum
All liquids solidify into glass
Water reaches its maximum density
3.
The movement of hydrotropism in plant roots is considered tropism:
Positive (the root bends in the direction of moisture and water concentration)
randomly
Unaffected
Negatively
4.
The substance that the plant secretes to close wounds in its woody stems and completely isolate the affected tissue from the air and microbes is:
Ascorbic acid
Liquid auxins
Gum and cork
Monosaccharides
5.
In the life cycle of the fougere plant (a fern), the haploid (N) gametophyte produces its male and female gametes by:
Mitosis within antheridia and archegonia
Regeneration
Surface budding
Direct meiosis
6.
The infective stage of the female Anopheles mosquito in the life cycle of Plasmodium malaria is:
Gametocytes
Merozoites
Sporozoites
Zygote
7.
The decomposition of the corpus luteum in the ovary of a non-pregnant woman at the end of the menstrual cycle results in:
Placenta formation
Secretion of huge amounts of LH
Continued growth of the uterine lining
A sharp drop in the concentration of the hormone progesterone leads to the breakdown of the uterine lining, the rupture of its capillaries, and the occurrence of menstruation
8.
A chemical substance used in the laboratory to cause mutations and chromosome duplication in the growing tips of plants is:
Hyaluronic acid
Glycerin
Colchicine, mustard gas, or nitrous acid
Sucrose solution
9.
Stop codons that bind to the release factor to terminate the translation process are:
CCC And GGG and TTT
UAA And UAG and UGA
AUG And GUG and UUG
AAA And UUU and GGG
10.
Modifying enzymes produced by bacteria work to:
Cell wall construction
Sugar analysis
Adding methyl groups (-CH3) to the nucleotides of recognition sites in bacterial DNA to protect it from their shortening enzymes.
Cracking viruses
11.
The two main functional sites on the tRNA molecule are:
Start location and stop location
DNA polymerase site and binding site
Phosphate site and sugar site
The amino acid binding site is at the 3′ end' (sequence CCA), and anticodon site
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