PAX SCIENCE NLN EXAM LATEST 25/2026 QUESTIONS AND
ANSWERS ASSURED PASS
Isotope - ---Answers_---An atom with the same number of
protons and a different number of neutrons from other atoms of
the same element.
Atomic number - ---Answers_---the number of protons in the
nucleus of an atom
Element - ---Answers_---A pure substance made of only one
kind of atom
Sublimation - ---Answers_---solid to gas
Deliquesence - ---Answers_---The absorption by a substance of
water from the air, so that the substance becomes wet.
What is silicon carbide used for? - ---Answers_---breaking
strong substances
Average saline level of sea water - ---Answers_---3.5%
Transition metals - ---Answers_---groups 3-12
,What element is found in all acids? - ---Answers_---Hydrogen
Allotropes - ---Answers_---Different forms of the same
element
4 states of matter - ---Answers_---solid, liquid, gas, plasma
Carrying capacity - ---Answers_---The largest population that
an area can support
Community - ---Answers_---All the different populations that
live together in an area
Population - ---Answers_---group of individuals of the same
species that live in the same area
Null hypothesis - ---Answers_---a statement or idea that can be
falsified, or proved wrong
Error - ---Answers_---the difference between the accepted
value and the experimental value
, Immune system - ---Answers_---A system (including the
thymus and bone marrow and lymphoid tissues) that protects the
body from foreign substances and pathogenic organisms by
producing the immune response
Endocrine system - ---Answers_---Glands secrete hormones
that regulate processes such as growth, reproduction, and
nutrient use (metabolism) by body cells.
Adrenal glands are found in the. . . - ---Answers_---endocrine
system
How many organ systems are there? - ---Answers_---11
What are the 4 types of tissues? - ---Answers_---epithelial,
connective, muscle, nervous
What carries oxygenated blood? - ---Answers_---arteries
Pulmonary veins
What carries deoxygenated blood? - ---Answers_---pulmonary
arteries and systemic veins
Osmosis - ---Answers_---Diffusion of water through a
selectively permeable membrane
ANSWERS ASSURED PASS
Isotope - ---Answers_---An atom with the same number of
protons and a different number of neutrons from other atoms of
the same element.
Atomic number - ---Answers_---the number of protons in the
nucleus of an atom
Element - ---Answers_---A pure substance made of only one
kind of atom
Sublimation - ---Answers_---solid to gas
Deliquesence - ---Answers_---The absorption by a substance of
water from the air, so that the substance becomes wet.
What is silicon carbide used for? - ---Answers_---breaking
strong substances
Average saline level of sea water - ---Answers_---3.5%
Transition metals - ---Answers_---groups 3-12
,What element is found in all acids? - ---Answers_---Hydrogen
Allotropes - ---Answers_---Different forms of the same
element
4 states of matter - ---Answers_---solid, liquid, gas, plasma
Carrying capacity - ---Answers_---The largest population that
an area can support
Community - ---Answers_---All the different populations that
live together in an area
Population - ---Answers_---group of individuals of the same
species that live in the same area
Null hypothesis - ---Answers_---a statement or idea that can be
falsified, or proved wrong
Error - ---Answers_---the difference between the accepted
value and the experimental value
, Immune system - ---Answers_---A system (including the
thymus and bone marrow and lymphoid tissues) that protects the
body from foreign substances and pathogenic organisms by
producing the immune response
Endocrine system - ---Answers_---Glands secrete hormones
that regulate processes such as growth, reproduction, and
nutrient use (metabolism) by body cells.
Adrenal glands are found in the. . . - ---Answers_---endocrine
system
How many organ systems are there? - ---Answers_---11
What are the 4 types of tissues? - ---Answers_---epithelial,
connective, muscle, nervous
What carries oxygenated blood? - ---Answers_---arteries
Pulmonary veins
What carries deoxygenated blood? - ---Answers_---pulmonary
arteries and systemic veins
Osmosis - ---Answers_---Diffusion of water through a
selectively permeable membrane
