stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
8th Grade CAST Life Science Review Flashcards | StudBud
Explore
/
8th Grade CAST Life Science Review
8th Grade CAST Life Science Review
21 terms
·
StudBud Administration
·
348 plays
Life Science Science Review #science #life #CAST #review #life science #NGSS #CAST
Flashcards
21 cards
F
Practice quiz
P
Host live
L
Questions
21
Answers
1
What process do cells use to change food and oxygen into carbon dioxide, water, energy?
photosynthesis
eating
mitosis
cellular respiration
2
Which of the following is an example of an ecosystem service?
pollination of crops by bees
regulation of atmospheric gases by algae
purification of water by wetlands
all of the above
3
Which of the following accurately describes the levels of organization of an organism?
tissue->molecule->atom->organism-> cell->organ->organ system
atom->molecule->cell->tissue->organ->organ system->organism
organism->cell->organ system->organ-> atom->tissue->molecule
cell->atom->molecule->tissue->organ->organ system->organism
4
An organelle that performs photosynthesis (energy from the sun to build sugar molecules)
mitochondria
cell membrane
nucleus
chloroplasts
5
The smallest unit of life is a...
organism
molecule
cell
electron
6
One main difference between plant and animal cells is...
Plant cells have a cell wall
Animal cells have chloroplasts
Animal cells have a cell membrane
Plant cells have a nucleus
7
True or False: You have one copy of every gene.
False
True
8
Oxpeckers sit on rhinos and eat parasites that live on rhino's skin. This is an example of...
competition
predation
mutualism
none of the above
9
What is a producer in the food web?
bolete fungus
swallowtail caterpillar
black bear
persimmon tree
10
DNA mutations can be...
or have no effect
beneficial (helpful)
harmful
all of the above
11
What is happening at number 3 in the water cycle shown?
condensation
evaporation
precipitation
perspiration
12
Which layer of rock contains the oldest fossils?
Layer A
cannot be determined
Layer C
Layer B
13
What is the average yearly temperature and precipitation of a region?
ecosystem
climate
biome
weather
14
What are the 3 main parts of the nervous system?
brain, spinal cord, neurons
kidneys, bladder, urethra
brain, heart, liver
bones, joints, ligaments
15
Examine the graph. What is causing the change in the population of female song sparrows?
competition with other bird species
not enough information
habitat loss
changes in food
16
Where does most energy on Earth come from?
Space
The Sun
The Earth's core
The Moon
17
Similarities in embryonic development show that...
all of the above
organisms share a common ancestor
which organisms are closely related
similarities between organisms
18
Which produces more variation (differences) in offspring?
none of the above
sexual reproduction
asexual and sexual reproduction produce the same variation
asexual reproduction
19
Examine the graph. What is causing the change in the population of female song sparrows?
not enough information
competition with other bird species
changes in food
habitat loss
20
The respiratory system works with the ______________ system to transport oxygen around the body
excretory
circulatory
digestive
nervous
21
What will happen to the mice population over time? (What would picture 3 show?)
increase in white mice
increase is gray mice
stay the same
decrease in all mice
