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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
selective breeding
D
a behavioral modification
2) Change in populations (such as galapagos island tortoises) over many generations is a result of
A
natural selection
B
asexual reproduction
C
overproduction
D
migration
3) At each stage of ecological succession, modifications make it suitable for the next stage as
A
climates become warmer
B
biodiversity and stability increase
C
biodiversity and stability decrease
D
less and less food is available
4) When rabbits mate, sperm fertilizes an egg and
A
genetic material is passed from generation to generation
B
the species becomes extinct
C
asexual reproduction occurs
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
sun, plants, thing that eats plants, meat eater
B
meat eater, thing that east plants, sun, plants
C
thing that eats plants, sun, meat eater, sun
D
sun, plants, meat eater, thing that eats plants
6) Making plant food from sunlight is
A
a watershed
B
the structure of chlorophyll
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
maintaining homeostasis
D
an adaptation that aids survival
8) Your respiratory system (lungs) exchange oxygen and carbon dioxide. But the system that transports nutrients and wastes is
A
nervous system
B
circulatory system
C
endocrine system
D
reproductive 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
lives forever
B
produces energy from food
C
photosynthesizes
D
mutate suntil superpowers are achieved
11) Genes are found on chromosomes in the nucleus of cells. Genes determine
A
traits
B
all of these answers are correct
C
skills
D
intelligence
12) An automatic response to stimuli (dropping a hot potato) is a result of the
A
muscular system
B
nervous system
C
circulatory system
D
integumentary system
13) Breathing (using oxygen to burn calories from food, resulting in carbon dioxide) and photosynthesis are
A
dominant traits
B
chemical changes
C
response to external stimuli
D
physical changes
14) Photosynthesis turns
A
solar energy into thermal energy
B
kinetic energy into potential energy
C
chemical energy into electrical 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
panda bears and mice
D
butterflies and grasshoppers
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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