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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: Structure of Earth, Geological Time and Structural Geology

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  • Questions count: 18
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1.
We visited the pottery village in Fustat ________ our holiday in Cairo.
while
when
as
during
2.
Electric buses and monorails produce zero exhaust fumes, making them ________ forms of transport.
eco-friendly
dangerous
noisy
polluting
3.
Watch out! The ladder is shaking violently. You ________ fall!
were
are going to
will
have
4.
I have already booked the flight tickets. I ________ to London next Friday.
travel
traveled
will travel
am traveling
5.
According to the Chain Rule, if y = (3 x2 - 5)4, then dy/dx is:
6 x (3 x2 - 5)3
12 x (3 x2 - 5)4
24 x (3 x2 - 5)3
4 (3 x2 - 5)3
6.
The second derivative d2y/dx2 of the function y = x4 - 2 x3 + 5 is:
4 x3 - 6 x2
12 x2 - 12 x
12 x2 - 6 x
24 x - 12
7.
The slope of the tangent to the curve y = (x + 1)/(x - 1) at x = 2 is:
2
3
-1
-2
8.
A solution with a pH value of 3.0 is classified as:
Strongly alkaline
Strongly acidic
Neutral
Weakly basic
9.
The direct cause of myxedema in an adult is:
Excessive increase in growth hormone
Hyperactivity of the parathyroid gland
Severe deficiency in thyroxine secretion in adulthood
Insulin deficiency
10.
The two hormones that are secreted from the mucous membrane of the small intestine to stimulate the pancreas to secrete its digestive juices are:
Thyroxine and calcitonin
Insulin and glucagon
Secretin and cholecystokinin (Secretin & CCK)
Prolactin and oxytocin
11.
The cells that secrete the hormones oxytocin and ADH and store them in the posterior lobe of the pituitary gland are:
Glial cells
Pineal gland cells
Frontal lobe glandular cells
Apocrine neurons in the hypothalamus (hypothalamus)
12.
The protein secreted by cytotoxic T cells (Tc) that creates holes in the plasma membrane of the target cell is:
Interleukin
Complement C3
globulin
Perforin protein
13.
Lymphotoxins secreted by cytotoxic T cells (Tc) eliminate the infected cell by:
Immunosuppression
Blood plasma coagulation
Activation of certain genes within the nucleus of the infected cell, which leads to the fragmentation of its genetic material and its programmed death (Apoptosis).
Calcium withdrawal
14.
In the human female, the second (delayed/conditional) meiotic division of the secondary oocyte takes place in:
The fallopian tube when the sperm enters the head for fertilization to occur
Ovaries before ovulation
Graaf's vesicle
Uterine cavity
15.
In Griffith's bacterial transformation experiment, mice died when they were injected with:
Heat-killed S bacteria alone
Live R bacteria alone
A mixture of heat-killed S bacteria with live R bacteria
Sterile saline solution
16.
The Ancon breed mutation in sheep with short, arched legs is considered a mutation:
A useful mechanism that the breeder kept in mind to prevent sheep from jumping fences and damaging crops
Numerical chromosome
Harmful innovation
Fatal to fetuses
17.
Modifying enzymes produced by bacteria work to:
Cracking viruses
Sugar analysis
Cell wall construction
Adding methyl groups (-CH3) to the nucleotides of recognition sites in bacterial DNA to protect it from their shortening enzymes.
18.
Sticky Ends resulting from the action of shortening enzymes are characterized by:
Collagen thickened ends
Short, extended single strands of unpaired nucleotides capable of spontaneous association with complementary ends
Ends surrounded by peptide bonds
Inactive phosphate sequences
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