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TCAP Prep 8
Test Description: Various questions to review for TCAP
Instructions: Answer all questions to get your test result.
1) What does a dichotomous key use to help a scientist identify organisms?
A
a chart with circles and arrows
B
a series of statements
C
a series of photographs
D
a graph of typical data
2) Which of the following is not a prey adaptation?
A
parasitism
B
camouflage
C
chemical defenses
D
warning coloration
3) The process by which organisms that are better adapted to their environment survive and reproduce more successfully than less well adapted organisms do is called
A
natural selection
B
selective breeding
C
fossilization
D
extinction
4) Heredity, experience, and adaptation to the environment
A
prohibits an organism from changing
B
hinder a species from adapting further
C
negatively affects the abiotic factors in an environment
D
determines an organism's behavior
5) Smog can be considered a colloid when it is composed of
A
a pure element
B
a cloudy suspension
C
particles too small to settle out
D
a chemical compound
6) Organisms have changed over time. Scientists have proven this fact by
A
finding that organisms of the past are identical to those living today
B
examining and comparing fossil evidence
C
discovering all the organisms that have ever lived on Earth
D
proving that there are more organisms with bones than without
7) When a strong base is dissolved in water, it produces a solution containing high concentration of
A
hydroxide ions
B
ammonium ions
C
hydrogen ions
D
hydronium ions
8) An atom has 5 protons, 6 neutrons, and 5 electrons. What is the atom's mass number
A
10
B
5
C
11
D
16
9) Which of the following is true about Bohr's model of the atom?
A
there are regions around the nucleus where electrons are likely to be found
B
the center of the atom is positively charged and dense, and electrons travel around it but in no exact arrangement
C
the electrons are located throughout the positively charged material
D
the electrons travel in definite paths around a small, positively charged nucleus
10) What do scientists use branching diagrams for?
A
to show how humans are related to plants
B
to determine which animals can breed
C
to show the family tree of a species
D
to help classify animals
*select an answer for all questions
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