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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 2 Quiz: Rock Cycle, Minerals, Crystallography and Weathering

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  • Questions count: 11
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1.
The relative density (specific gravity) of a substance is defined as:
The ratio of the density of the substance to the density of pure water at 4°C
The product of density and the acceleration due to gravity
The mass of the substance divided by its volume at 100°C
The reciprocal of the buoyant force
2.
The adrenal medulla is stimulated to secrete the emergency hormones adrenaline and noradrenaline via:
Rapid and direct sympathetic nervous stimulation in cases of fear, fight, and flight
High blood sugar
ACTH hormonal stimulation
Body temperature change
3.
Beta cells in the islets of Langerhans in the pancreas are responsible for secreting the hormone:
Insulin
Somatostatin
Pepsin
Glucagon
4.
The lymphocytes responsible for secreting specific antibodies in humoral immunity are:
Plasma B cells
Natural killer (NK) cells
Helper T cells (TH)
Macrophages
5.
Vaccination gives humans immunity:
Acquired long-term positivity for the formation of memory cells
Innate, inherited
Not specialized
Temporary negativity that disappears within weeks
6.
In the life cycle of the Plasmodium malaria parasite, the human infective phase is:
Gametophytes
Kinetic phase (okinete)
Sporozoites
Merozoites
7.
In the human female, the second (delayed/conditional) meiotic division of the secondary oocyte takes place in:
Uterine cavity
The fallopian tube when the sperm enters the head for fertilization to occur
Ovaries before ovulation
Graaf's vesicle
8.
Interstitial cells in the human male testicle respond directly and secrete testosterone under the influence of a pituitary hormone:
FSH hormone
Prolactin hormone
Growth hormone
Luteinizing hormone (LH)
9.
DNA polymerase always adds new nucleotides in a specific direction:
From party 5' To party 3' For new growing bar only
randomly
In both directions together
From party 3' to 5' only
10.
The enzyme extracted from RNA viruses and used to convert mRNA into a single strand of complementary DNA (cDNA) is:
RNA polymerase enzyme
Reverse transcriptase
Ligase enzyme
Palace enzyme
11.
In gene cloning technology, a ligase is used to:
Linking the integrated sticky ends of a target gene to the sticky ends of a circular plasmid
Breaking down proteins
mRNA transcription
Cut the plasmid
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