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8th Grade Year End Flashcards | StudBud
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8th Grade Year End
8th Grade Year End
40 terms
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StudBud Administration
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Life Science (30) & Earth Science (10)
Flashcards
40 cards
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Practice quiz
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Questions
40
Answers
1
The benefits of being multicellular include
generalized cells, longer life, & ability to reproduce fast.
longer life, larger size, and specialized cells.
small soize, long life, and cell specialization.
larger size, more enemies, and specialized cells.
2
Homeostasis means maintaining
similar offspring.
varied internal conditions.
stable internal conditions.
varied offspring.
3
Magma forms within the mantle most often as a result of
low temperature & low pressure.
high tempertaure & high pressure.
high temperature & low pressure.
low temperature & high pressure.
4
Three sensations that receptors in the skin detect are
light, smell, and sound
temperature, pressure, and pain
touch, pain, and odors
pressure, sound, and touch
5
Igneous rock forms when
minerls crystallize from a solution.
mineral grains in a rock recrystallize.
sand grains are cemented together.
magma cools and solidifies.
6
The steps of scientific methods
often start with a question.
alwyas result in the development of a theory.
must always be used in the same order.
must all be used in every scientific investigation.
7
Cell size is limited by the
thickness of the cell wall.
amount of cytoplasm in the cell.
size of the cells nucleus.
cell's surface area-to-volume ratio.
8
The type of tectonic plate boundary that forms from a collision between 2 tectonic plates is a
transform plate boundary.
divergent plate boundary.
normal plate boundary.
convergent plate boundary.
9
In which climate would you find the fastest rate of chemical weathering?
a warm, dry climate
a warm, humid climate
a cold, dry climate
a cold, humid, climate
10
How long was the hair on day 60?
22.5 cm
22.0 cm
23.0 cm
21.0 cm
11
What is the most abundant gas in the astmosphere?
oxygen
nitorgen
carbon dioxide
hydrogen
12
The 2 parts of a scientific name are the name sof the gunus and the
order name.
family name.
specific name.
Phylum name.
13
What is the unknown genotype?
Tt
TT
tt
tT
14
Which of the following properties of minerals does the Mohs scale measure?
streak
luster
density
hardness
15
If the universe expands forever,
stars will age & die & the universe will become cold & dark
the universe will repeat itself.
the universe will collapse.
the universe will produce another Big Bang.
16
Which of the following allow you to see the world in color?
cones
retinas
lenses
rods
17
Strong updrafts within a thunderhead can produce
hail.
snow.
sleet.
rain.
18
Whicxh of the following organs aids digestion by producing bile?
stomach
small intestine
pancreas
liver
19
5 SECONDS!
True or False. Humans evolved from apes.
True
False
20
Genes carry information that determines
traits
chromosomes
alleles
chromosomes
21
The lymphatic system
all of the choices
fights pathogens
collects excess fluid
returns fluid to your blood
22
Modern scientific explanations of evolution
have replaced Darwin's theory.
re;y on genetics instead of natural selection.
fail to explain how traits are inherited.
combine principals of natural selection & genetic iheritence
23
The process that produces sex cells is
photosynthesis
meiosis
heredity
moitosis
24
What is the result of mitosis and cytokinesis?
two identical cells
two different cells
two chloroplasts
two nuclei
25
In humans, each egg and each sperm contain
46 pairs of chromosomes
46 chromosomes
23 pairs of chromosomes
23 chomosomes
26
Most fossils are found in what kind of rocks?
metamorphic
hard
igneous
sedimentary
27
The idea that large pieces of the Earth's crust move around the Earth is called
the Law of Superposition.
teh Dark Sucker Theory.
Plate Tectonics.
Earth Migration.
28
Which is the most likely explanation for the change seen after the 2-minute mark?
person inhaled
person had a heart attack
perosn started exercising
person was startled
29
The movement of water through a semipermiable membrane is called
active transport
passive transport
osmosis
diffusion
30
Muscles ___.
move bones by relaxing
work in pairs
get smaller when exercised
all choices are correct
31
Hair is a part of which system?
nervous
muscular
lymphatic
none of these
32
Which of the following is NOT a function of skin?
get rid of wastes
allow for body movement
retain water in the body
regulate body temperature
33
Which diagram of cell division would produce identical twins: A or B? Why?
B, because each egg is fertilized by a separate sperm cell
B, because two eggs are released by an ovary
A, because a single fertilized egg separates into two halves
both A & B, because twins result in both casses
34
Which of the following is a slow mass movement?
creep
slump
lahar
mudflow
35
Which of the following is true of blood in the pulmonary veins?
blood is going to the lungs
blood is oxygen rich
blood is going to the body
blood is oxygen poor
36
How many grandchildren does Mr. Grabski have?
3
13
2
4
37
The point on the Earth's sruface directly above an earthquake's starting point is it's
focus.
seismopoint.
epicenter.
Richer Scale.
38
The peripheral nervous system does NOT include
sensory receptors
axons
the spinal cord
motor neurons
39
Which of the following statements describes how tissues, organs, and organ systems are related?
tissues form organs, which form organ systems
none of these
organ systems form organs, which form tissues
organs form tissues, which form organ systems
40
A gene can be all of the following EXCEPT
a set of instructions for a trait.
instructions for making a protein.
a complete chromosome.
a portion of a strand of DNA.
