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May 2021
Test Description: Science topics from the 1st and 2nd semester
Instructions: Answer all questions to get your test result.
1) When farmers grow crops, they breed the best fruit or vegetable plants together. This is called
A
natural selection
B
decomposition
C
a behavioral modification
D
selective breeding
2) Change in populations (such as galapagos island tortoises) over many generations is a result of
A
overproduction
B
natural selection
C
migration
D
asexual reproduction
3) At each stage of ecological succession, modifications make it suitable for the next stage as
A
biodiversity and stability decrease
B
biodiversity and stability increase
C
less and less food is available
D
climates become warmer
4) When rabbits mate, sperm fertilizes an egg and
A
the species becomes extinct
B
asexual reproduction occurs
C
genetic material is passed from generation to generation
D
all offspring are identical clones of one parent
5) All ecosystems must have plants. Plants change light energy to chemical energy while making plant food. Energy flows through an ecosystem in this order:
A
thing that eats plants, sun, meat eater, sun
B
sun, plants, meat eater, thing that eats plants
C
meat eater, thing that east plants, sun, plants
D
sun, plants, thing that eats plants, meat eater
6) Making plant food from sunlight is
A
the structure of chlorophyll
B
a watershed
C
the function of a chloroplasts
D
the response of the nervous system
7) Camouflaged fur is an example of
A
radiant energy transforming into chemical energy
B
selective breeding
C
an adaptation that aids survival
D
maintaining homeostasis
8) Your respiratory system (lungs) exchange oxygen and carbon dioxide. But the system that transports nutrients and wastes is
A
reproductive system
B
endocrine system
C
nervous system
D
circulatory system
9) The function of a cell's vacuole is
A
storage
B
gas exchange
C
sexual reproduction
D
respiration
10) The mitochondria of a cell
A
mutate suntil superpowers are achieved
B
photosynthesizes
C
lives forever
D
produces energy from food
11) Genes are found on chromosomes in the nucleus of cells. Genes determine
A
all of these answers are correct
B
traits
C
skills
D
intelligence
12) An automatic response to stimuli (dropping a hot potato) is a result of the
A
integumentary system
B
circulatory system
C
nervous system
D
muscular system
13) Breathing (using oxygen to burn calories from food, resulting in carbon dioxide) and photosynthesis are
A
response to external stimuli
B
chemical changes
C
dominant traits
D
physical changes
14) Photosynthesis turns
A
chemical energy into electrical energy
B
solar energy into thermal energy
C
kinetic energy into potential energy
D
radiant energy into chemical energy
15) Which would an ecosystem rely on the most?
A
trees and grass
B
hawks and turtles
C
butterflies and grasshoppers
D
panda bears and mice
16) Organs of the excretory system such as the kidneys, liver, lungs and large intestine
A
determine traits
B
remove toxins from the body
C
turn radiant energy into chemical energy
D
produce caron dioxide
*select an answer for all questions
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