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Worksheets8th Grade Final Review
Total questions: 125
Worksheet time: 1hrs 29mins
A mode of reproduction by which an organism arises from a single organism and inherit the identical genes of that parent
Asexual Reproduction
Sexual Reproduction
Genetic Variation
Alleles
A mode of reproduction in which an organism arises from two organisms and inherits half of its DNA from each parent
Sexual Reproduction
Asexual Reproduction
Cloning
Fragmentation
Requires two parents
sexual
asexual
Requires only one parent
sexual
asexual
In sexual reproduction the male produces ___ cells.
Malex
Quack
Egg
Sperm
In sexual reproduction the female produces ___ cells.
Femalex
Quack
Egg
Sperm
___________________ is a type of asexual reproduction in which a piece of a parent organism breaks off to form an new organism (ex. starfish).
fission
budding
fragmentation
fertiliztion
When an offspring grows off from the body of a parent organism it is called __________________.
budding
fission
fragmentation
sporulation
What are some disadvantages to sexual reproduction? (select all that apply)
it takes a lot of energy to find a mate
you don't need another mate
it requires a male and a female
more genetic errors can occur
Some advantages of sexual reproduction include: (select all that apply)
genetic variation
improves chances of adapting to the environment
helps species survive catastrophes
it doesn't take as much energy as asexual reproduction
What are some advantages of asexual reproduction are: (select all that apply)
it only requires one organism
it takes less energy than sexual reproduction
offspring are already well-adapted for the environment
there is a lot of genetic variety
Male and female reproductive cells are collectively known as:
spores
pollen
gametes
offspring
____________________ occurs when a male gamete (sperm) combines with a female gamete (egg).
sporulation
fertilization
fission
regeneration
ATG TGA CAG?
What is the advantage of having different shaped beaks?
To look different from other species.
To be able to eat the food readily available in the environment.
To protect itself against predators.
To protect itself against prey.
An inherited trait that helps those organisms that have it to survive
niche
structure
characteristic
adaptation
Which term refers to a farmer choosing the best corn from this year to plant next year?
natural selection
selective breeding
genetic engineering
genetic transformation
A group of organisms that share similar characteristics and can reproduce among themselves to produce fertile offspring.
Mutation
Species
Adaptation
Variation
This is the organisms with traits best suited to their environment are more likely to survive and reproduce.
Variation
Mutation
Natural Selection
Gradualism
This is any variation that makes an organism better suited to its environment.
Evolution
Graduation
Species
Adaptation
A giraffe has a long neck in order to better reach leaves to eat. This is an example of _____.
an adaptation
environment
response
stimulus
How do adaptations help animals?
To escape animals
to hunt for food
to survive in their habitats
All of these are correct
Plants with spines and waxy leaves are well suited for life in which environment?
Desert
Temperate forest
Grassland
Tropical Rainfroest
Evolution is best defined as:
the process which organisms die.
the process which organisms change over time.
the process which organisms that are extinct become revived.
the process which non-living things fossilize.
The solidified remain or imprint of a once living thing are called:
Fossils
Homologous Structures
Vestigial Structures
DNA
What type of evidence is represented in the picture above:
Fossils
Vestigial Structures
DNA
Homologous Structures
What type of evidence is shown in this picture?
Fossils
Homologous Structures
Vestigial Structures
DNA
What type of evidence are shown in the picture above?
Fossils
Embryology
Homologous Structures
Vestigial Structures
Which scientist is known for his work that he did on the Galapagos Islands to develop his theory of natural selection?
Gregor Mendel
Charles Darwin
Anton Van Leewenhoek
Robert Brown
The process by which two populations of the same species become so different that they can no longer interbreed.
natural selection
artificial selection
speciation
fossilization
Which layer is the youngest?
A
B
C
D
E
Created when existing rock is subjected to very high heat and pressure.
Sedimentary Rock
Igneous Rock
Metamorphic Rock
The settling out of sediment.
Weathering
Erosion
Deposition
Cementation & Compaction
Created from the cooling and solidification of magma or lava.
Sedimentary Rock
Igneous Rock
Metamorphic Rock
The creation of smaller pieces of rock through physical or chemical means.
Weathering
Erosion
Deposition
Cementation & Compaction
The moving of weathered products from their original position.
Weathering
Erosion
Deposition
Cementation & Compaction
Which layer is the oldest?
A
B
C
D
Which fossil is the youngest?
Trilobite
Skeleton
Ammonite
Which layer is the youngest?
D
E
F
a model scientists use to describe the timing of events and the relationships between those events in earth’s history.
geologic time scale
era
period
epoch
a division of geologic time; a subdivision of a period. Shortest length of time.
geologic time scale
era
period
epoch
What Era were mammals first seen?
Precambrian
Paleozoic
Mesozoic
Cenozoic
Resources that are not able to be reproduced as quickly as they are used are called _____.
renewable resources
replaceable resources
non renewable resources
non replaceable resources
Geothermal energy uses heat from ____ to produce electricity.
the earth
coal
oil
natural gas
Renewable resources ...
are not replaceable
are used more frequently than non renewables
are never going to run out
going to run out
What type of power plant uses the potential energy of water trapped behind a dam?
nuclear power plant
hydroelectric power plant
solar station
coal burning power plant
What are fossil fuels?
coal, oil, uranium
oil, natural gas, uranium
coal, oil, natural gas
geothemals, coal, natural gas
Uranium atoms are split to create a tremendous amount of heat in a _____ power plant.
biomass
geothermal
nuclear
hydroelectric
Which of these is renewable energy?
coal
petroleum
oil
biomass
What does the picture below illustrate?
Visible Light Spectrum
Electromagnetic Spectrum
Frequency Indicator
Color Line
What is the saying that can help you remember the order of the visible spectrum?
ROYGBIV
RYOBIVG
ROYBVIG
RIBYOVG
How are we able to see the color white?
All colors except red are absorbed
All colors are absorbed
All colors are reflected
All colors except red are reflected
What does reflection mean?
Bending Light
Bouncing Light
Of the visible spectrum, what color has the longest wavelength?
Blue
Green
Yellow
Red
Violet
Light is a type of energy that travels as an ______________ ____________.
Longitudinal Wave
Electric Current
Electromagnetic Wave
Magnetic Wave
What is this a picture of?
Reflection
Refraction
