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Late Work 2024 8th Grade CAST Life Science Review Flashcards | StudBud
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Late Work 2024 8th Grade CAST Life Science Review
Late Work 2024 8th Grade CAST Life Science Review
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Life Science Science Review #science #life #CAST #review #life science #NGSS #CAST
Flashcards
21 cards
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Practice quiz
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Questions
21
Answers
1
Similarities in embryonic development show that...
all of the above
organisms share a common ancestor
which organisms are closely related
similarities between organisms
2
DNA mutations can be...
harmful
all of the above
or have no effect
beneficial (helpful)
3
The respiratory system works with the ______________ system to transport oxygen around the body
nervous
digestive
circulatory
excretory
4
The smallest unit of life is a...
molecule
cell
electron
organism
5
What is happening at number 3 in the water cycle shown?
precipitation
perspiration
evaporation
condensation
6
What process do cells use to change food and oxygen into carbon dioxide, water, energy?
cellular respiration
mitosis
photosynthesis
eating
7
An organelle that performs photosynthesis (energy from the sun to build sugar molecules)
chloroplasts
cell membrane
mitochondria
nucleus
8
Examine the graph. What is causing the change in the population of female song sparrows?
habitat loss
changes in food
not enough information
competition with other bird species
9
What is a producer in the food web?
persimmon tree
swallowtail caterpillar
black bear
bolete fungus
10
What are the 3 main parts of the nervous system?
kidneys, bladder, urethra
brain, heart, liver
bones, joints, ligaments
brain, spinal cord, neurons
11
Which produces more variation (differences) in offspring?
asexual and sexual reproduction produce the same variation
asexual reproduction
sexual reproduction
none of the above
12
Examine the graph. What is causing the change in the population of female song sparrows?
competition with other bird species
changes in food
not enough information
habitat loss
13
Where does most energy on Earth come from?
Space
The Earth's core
The Moon
The Sun
14
What will happen to the mice population over time? (What would picture 3 show?)
decrease in all mice
stay the same
increase in white mice
increase is gray mice
15
Which of the following accurately describes the levels of organization of an organism?
atom->molecule->cell->tissue->organ->organ system->organism
tissue->molecule->atom->organism-> cell->organ->organ system
cell->atom->molecule->tissue->organ->organ system->organism
organism->cell->organ system->organ-> atom->tissue->molecule
16
True or False: You have one copy of every gene.
True
False
17
Which of the following is an example of an ecosystem service?
all of the above
purification of water by wetlands
pollination of crops by bees
regulation of atmospheric gases by algae
18
What is the average yearly temperature and precipitation of a region?
ecosystem
biome
weather
climate
19
Which layer of rock contains the oldest fossils?
cannot be determined
Layer B
Layer C
Layer A
20
Oxpeckers sit on rhinos and eat parasites that live on rhino's skin. This is an example of...
mutualism
predation
none of the above
competition
21
One main difference between plant and animal cells is...
Animal cells have a cell membrane
Animal cells have chloroplasts
Plant cells have a cell wall
Plant cells have a nucleus
