Download 7th Grade Spring Semester Final Review

th
7
Grade Spring
Semester Final
Review
Questions by: T. Shorter
Power point by: K. Pease
1. Gregor Medal studied pea plants in his
garden during the 1800’s. He is know as
the Father of____________.
Genetics
http://anthro.palomar.edu/mendel/mendel_1.htm
2. Draw a circle around all of the
heterozygous genotypes above.
 Cc
 Gg
 Qq
 Dd
 Vv
 Yy
 Jj
3. Draw a square around all of the
homozygous genotypes above.
 TT
 zz
 bb
 NN
 HH
 xx
 ee
4. Explain the difference between
dominant and recessive traits.

If a dominant and a recessive gene appear
together (the heterozygous condition), the
dominant will always win, producing the trait it
is coded for. The only time a recessive trait
(such as the one for blond hair) expresses itself
is when two recessive genes are present
http://science.jrank.org/pages/2988/Genetics-Dominant-recessive-traits.html
5. A cross between a green eyes person
and a blue eyes person produces four
blue eyes children.
What is most likely the dominant color?
6. Capital letters represent ______
alleles in a genetic cross.

Dominant
7.Lowercase letters represent
______alleles in a genetic code.
 Recessive
8.Describe the difference between
phenotype and genotype.
 Phenotype
= physical appearance
 Genotype = genetic traits
9. A cross between a green eyed person
and a blue eyed person produces four
blue eyed children. What is the most
likely the dominant color?
Blue
10. Name the type of reproduction
(asexual or sexual) seen in each of the
pictures below.
11. Another term for heterozygous is
_________________.
Hybrid
12. Another term for homozygous is
_______________.
Purebred
13. Asexual Reproduction involves
______________ parent and results is
____________ offspring.
One
parent
Identical offspring
14. Sexual reproduction involves
___________ parents and results in
_____________ offspring.
 Two
parents
 Genetically diverse
15. The ______ is an organ in the male
reproductive system that produces
gametes (sex cells) call ____________.
 Testis
 Sperm
16. The _______ is an organ in the female
reproductive system that produces
gametes (sex cells) called ____________.
Ovaries
Eggs
17. ______ fertilization is a type or
reproduction where eggs cells are
fertilized by sperm outside of the body.
 External
Fertilization
18. In humans the ________ pair of
chromosomes determines the sex of the
offspring.
rd
23
pair
19. Identify the following traits as
inherited or acquired.








Nose Shape = inherited
Hair color = inherited
Eye color = inherited
Personality = inherited
Scar on Arm = acquired
Skin color = inherited
Attitude = acquired
Curly hair = inherited
20. Describe the difference between
heterozygous and homozygous and give
an example of both.
Homozygous means having identical
alleles for a single trait
Heterozygous. Two different genes
controlling a specified inherited trait
21.If brown eyes are dominant, draw a
punnet square to show how two browneyed parents can have a child with blue
eyes. Include genotype and phenotype.




B = Dominant for Brown
b = Recessive for Blue
25% BB 50%Bb 25%bb
75% Brown 25% Blue
22. Complete the following:
23. Observe the length of the tree’s
shadow in each of the pictures below.
Label each picture as depicting either
sunrise, mid day or sunset.
24. Label the season the Northern
Hemisphere would be experiencing in
positions A-D below.




A=summer
B=fall
C=winter
D=spring
25. Label the phases of the moon that
would be seen from earth in positions AD
26. What causes the changing of
seasons on earth?
 While
the amount of heat
coming from the sun stays
the same, it is spread over a
larger area during the winter
than during the summer.
This is due to the earth’s tilt.
http://christiananswers.net/kids/edn-seasons.html
27. Which direction does the earth
spin on its axis?
 When
viewed from the 'top' or the
'north pole' of the Sun, the Earth
revolves COUNTER-CLOCKWISE.
 Also, when viewed from above it's
own North Pole, the Earth rotates
counter-clockwise, as well.
28.What is a renewable resource? List
3 examples





A natural resource is a renewable resource
if it is replaced by natural processes at a rate
comparable or faster than its rate of
consumption by humans.
Solar radiation,
tides,
winds
hydroelectricity are perpetual resources that are
in no danger of a lack of long-term
availability.
29. What is a non-renewable
resource? Give 3 examples
 Natural
resource, such as
coal, oil, or natural gas, that
takes millions of years to
form naturally and therefore
cannot be replaced once it is
consumed;
30. What is am inexhaustible
resource? List 3 examples
 Inexhaustible
resources are
resources that will never run out.
Examples: Wind, sun, tides, solar
energy, geothermal energy.
31.List the produces:
Plants
Producers
32. List the decomposers:
Earthworms
33. List the consumers:
 Ant
 Snake
 Lizard
 Hawk
 Coyote
34. List the carnivores:




Hawk
Coyote
Lizards
Snake
35. List the herbivores:
Ants
36. Is this an example of Primary or
Secondary succession? Why?
Primary
Succession
37.What are pioneer species? List
two examples
 Pioneer
species are species
which colonize previously
uncolonized land, usually
leading to ecological succession.
39.Circle the organisms which contain
the most stored energy from the sun?
Algae
(producer)
40. Put a triangle around the
organisms which contains the least
stored energy from the sun?
Hawk
(tertiary consumer)
41.It takes the earth ________ to
______ around the sun.
365
¼ days to revolve
42. It takes the earth ______ to ________
on its axis causing __________.
 ________
 rotate
 seasons
43. It takes the moon ______ to
_________ on its axis and ________ to
________ around the Earth. Because of
this we only see ___________ side of the
moon.
http://brainbites.nasa.gov/#/oneside-of-moon
#44. Explain the difference between
weathering, erosion, and deposition.



Weathering is the breaking down of Earth's rocks,
soils and minerals through direct contact with the
planet's atmosphere.
Erosion is the process of weathering and transport
of solids (sediment, soil, rock and other particles) in
the natural environment or their source and deposits
them elsewhere ...
Deposition refers to the build up of a sediment from
organically derived matter or chemical processes.
45. Soil erosion is caused when…
 Soil
erosion is a naturally occurring
process on all land. The agents of
soil erosion are water and wind,
each contributing a significant
amount of soil loss each year