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Biology & Geology

Chapter 1 - Support and Movement in Living Organisms

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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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Chapter 7 - Geology, Earth Sciences and Ecology

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Quiz

Lesson 1 Quiz: Asexual and Sexual Reproduction and Alternation of Generations

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  • Questions count: 14
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1.
Magnetic iron oxide (Magnetite, Fe3O4) is chemically considered a mixed oxide because reacting it with hot concentrated sulfuric acid yields:
Iron(III) sulfate only
Iron(II) sulfate and hydrogen gas only
A mixture of iron(II) sulfate, iron(III) sulfate, and water vapor
Elemental iron and sulfur dioxide
2.
An aqueous solution of titanium(IV) chloride (TiCl4) is diamagnetic and colorless because:
The Ti4+ ion has an electronic configuration of [Ar] 3d0, devoid of unpaired d-electrons
Chlorine ions quench all magnetic dipoles
Titanium is an alkali earth metal
It absorbs all visible wavelengths of light
3.
The number of terms in the finite arithmetic sequence (5, 9, 13, ..., 81) is:
25 terms
20 terms
19 terms
21 terms
4.
The hydrostatic pressure exerted by a static homogeneous liquid of density rho at depth h beneath its free surface is expressed by:
P = 1/2 rho * g * h2
P = rho * g / h
P = rho * g * h
P = rho * h / g
5.
In a hydraulic press, the ratio of the cross-sectional area of the large piston to that of the small piston is 50. If a force of 100 N is exerted on the small piston, the maximum force exerted by the large piston is:
2 N
50,000 N
2500 N
5000 N
6.
The relative density (specific gravity) of a substance is defined as:
The product of density and the acceleration due to gravity
The mass of the substance divided by its volume at 100°C
The ratio of the density of the substance to the density of pure water at 4°C
The reciprocal of the buoyant force
7.
Pure water reaches its maximum density (1.000 g/cm3 or 1000 kg/m3) at a temperature of:
0.0 °C
4.0 °C
25.0 °C
-4.0 °C
8.
In a hydraulic press, if the radius of the large piston is 4 times that of the small piston, the mechanical advantage is:
8
16
2
4
9.
The Ideal Gas Law combining all empirical gas relationships is mathematically formulated as:
P / V = n * R * T
P * T = n * R * V
P * V = m * g * h
P * V = n * R * T
10.
Real gases behave most closely to an ideal gas under conditions of:
Extremely high pressure and low temperature
High pressure and near liquefaction point
Zero gravitational acceleration
Very low pressure and high temperature (where intermolecular attraction forces and molecular volumes become negligible)
11.
Acids are chemical compounds that dissociate in aqueous solutions to produce:
Hydrogen ions (H+ or hydronium ions H3O+), turning blue litmus paper red
Precipitated metallic salts
Sodium ions and chlorine gas
Hydroxide ions (OH-) turning red litmus paper blue
12.
Phenolphthalein indicator cannot distinguish between an acidic solution and a neutral solution because:
It is red in both
It is blue in both
It is colorless in both
It precipitates in both
13.
The apple is considered a false fruit from a morphological and anatomical perspective because:
The edible, fatty part that is lubricated by food is the takht, not the ovary of the flower
Produced from a hermaphrodite flower
The cup leaves become greasy
It is made without seeds
14.
The number of hydrogen bonds between the nitrogenous base pair guanine and cytosine (G - C) is:
3 Hydrogen bonds
4 Links
One bond
Two hydrogen bonds
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