What type of symbiosis is the relationship between sharks and pilot fish?
Anonymous Quiz
11%
Parasitism
38%
Mutualism
31%
Commensalism
19%
Predation
Media is too big
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What does Faraday's first law of electrolysis state?
Anonymous Quiz
8%
Current is proportional to voltage
75%
The mass deposited is proportional to the electric charge passed
11%
Resistance is inversely proportional to temperature
6%
EMF is proportional to the magnetic field
Which plant structure absorbs water and minerals from the soil?
Anonymous Quiz
3%
Leaves
8%
Stem
89%
Roots (root hairs)
0%
Flowers
β€1
What is surface tension?
Anonymous Quiz
5%
Internal pressure of a gas
85%
The force that tends to minimise the surface area of a liquid
3%
Viscosity of a fluid
7%
Friction between fluid layers
Which bond forms between amino acids in a protein?
Anonymous Quiz
9%
Ionic bond
78%
Covalent (peptide) bond
10%
Hydrogen bond
3%
Van der Waals bond
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Which organ produces red blood cells in adults?
Anonymous Quiz
18%
Liver
9%
Thymus
68%
Red bone marrow
5%
Spleen
β€4
What are planetary rings composed of?
Anonymous Quiz
20%
An asteroid belt around Saturn
65%
Discs of ice and dust orbiting a planet
11%
A nebula around a star
4%
A system of close moons
What is DNA transcription?
Anonymous Quiz
21%
DNA duplication before mitosis
60%
Synthesis of RNA from the DNA template
12%
Protein synthesis from mRNA
7%
Repair of damaged DNA strands
β€1
Which law describes the gravitational force between two masses?
Anonymous Quiz
15%
Coulomb's law
6%
Hooke's law
77%
Newton's law of universal gravitation
2%
Gauss's law
β€1
Which ear structure converts sound vibrations into nerve signals?
Anonymous Quiz
14%
Eardrum
50%
Hammer, anvil and stirrup
32%
Cochlea
4%
Semicircular canals
What does Mendel's law of segregation state?
Anonymous Quiz
14%
Traits blend across generations
64%
During gamete formation, the two alleles of each gene separate into distinct gametes
14%
Genes are inherited together if close on a chromosome
7%
Mutations are transmitted only maternally