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MCAS Preview Review! Flashcards | StudBud
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MCAS Preview Review!
MCAS Preview Review!
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1
Best explains why the lower mantle of Earthis much more rigid and dense than theupper mantle?
Lower mantle is farther from thecore than the upper mantle
The lower mantle is cooler than theupper mantle
The lower mantle is older than theupper mantle.
The lower mantle is under morepressure than the upper mantle
2
The complete removal of decomposers from an ecosystem will have the greatest effect on
The spread of disease
The distribution of organisms
The availability of water
The recycling of nutrients
3
Which of the following is an example of asexual reproduction?
Seeds form in pine cones after pollination
Fish releasing egg and sperm cells in the water
Trees send out rootlike extensions that produce new stems
Turtles laying fertilized eggs on the beach
4
Most of the bacteria in a forest ecosystem are best classified as which of the following?
decomposers
consumers
producers
predators
5
Comparing the skeletons of which of the following fish would best show evolution of a species?
a male fish and a female fish that could produce offspring
the same fish after it hatched and when it was full-grown
fish that lived recently and one that lived a long time ago
the same fish just before and after cut had healed
6
In the human body, which system functions primarily to defend the body against disease?
respiratory
nervous
immune
digestive
7
The population of which animal would most likely decline if the small animals were eliminated?
hawks
grasses
mushrooms
earthworms
8
Two dogs of the same breed have different coat colors.The instructions for color are stored in
the cytoplasm of skin cells.
the chromosomes of every cell.
the mitochondria of hair cells.
the membrane of every cell.
9
Which of the following has changed over the last 200 years primarily due to human activity?
Earth’s magnetic field
the frequency of earthquakes
the composition of the atmosphere
Earth’s tectonic plate activity
10
Human activity most likely contributes to which of the following changes on Earth?
a decrease in the number of volcanic eruptions
an increase in the length of a day
a decrease in the magnitude of large earthquakes
an increase in the amount of atmospheric carbon dioxide
11
The illustration below represents two protists.What do these two organisms have in common?
They cause diseases.
They are unicellular.
They live underground.
They are photosynthetic.
12
Which body syst. typically recognizes, attacks, and destroys substances that may cause disease?
immune
digestive
excretory
respiratory
13
Which of the following is
NOT
present in animal cells?
mitochindria
cell wall
cell membrane
nucleus
14
Which of the following do muscle cells have in greater numbers than most other types of cells?
chromosomes
nuclei
vacuoles
mitochondria
15
Which of the following materials are direct products of photosynthesis?
oxygen and sugar
fats and starches
proteins and amino acids
carbon dioxide and water
16
Which parts of a plant cell has a function most similar to the function of an animal skeleton?
chloroplast
cell wall
cell membrane
nucleus
17
Which of the following organisms produce energy directly from sunlight?
amoeba
grass
rabbit
worm
18
The organism Anya is observing most likely belongs to which kingdom?
Plantae
Animalia
Fungi
Eubacteria
19
Substances enter any plant or animal cell by passing through which of the following structures?
nucleus
chloroplast
cell membrane
vacuole
20
Which of the following are formed when two crustal plates collide with one another?
rift valleys
mid-ocean ridges
hot spots
mountain ranges
21
Plant like, lacks chlorophyl, many cells, no cell wall or chloroplasts
Protista
Fungi
Eubacteria
Animalia
22
Which of the following statmts best describes the process of natural selection in a population?
responding to their environment by mutating
learning to adapt to specific changes that occur slowly
developing traits to match changes to their environment
have genetic diffs. that make them more likely to survive
23
Best suppt conc two animal species evolved from a common ancestor in recent geological history
The species both obtain oxygen from the air
The species have similar bone structure
The species are both herbivores
The species live in the same environment
24
The diagram below shows a major system of the human body.
protecting the body from infection
responding to stimuli in the environment
exchanging gases with the environment
absorbing nutrients from food
25
The layers of the Earth are identified by a number. Which layer is primarily composed of iron?
layer 3
layer 2
layer 1
layer 4
26
Which of the following most likely causes Earth’s inner core to be a solid?
The temperature of the core is very low.
The metals in the core are very heavy.
The chemicals in the core are very reactive.
The pressure at the core is very high.
27
Lichens are symbiotic organism made up of green algae and fungi. What do the green algae supply
food
H20
CO2
protection
28
The picture below shows a paramecium. In which kingdom is the paramecium classified?
Animalia
Protista
Plantae
Fungi
29
Which cellular organelle uses oxygen and glucose to provide energy to the cell?
vacuole
nucleus
ribosome
mitochondrion
30
2 purple flowers were crossed; what best explains why some of the offspring have white flowers?
These offsprg inherited a DNA sequence from one parent plant
These offspring inherited a DNA sequence for white flowers
These offspring were created by asexual reproduction.
These offspring were produced in a dark environment.
31
How is a skin cell from a mouse similar to an amoeba?
Both consume carbon dioxide.
Both have cell walls.
Both need energy.
Both move with pseudopodia.
32
Which best explains why the beak shape of each species of bird developed differently?
shape is an adaptation to a specific source of food.
The corn will be more nutritious.
shape helps the birds to produce different songs.
shape is designed to construct a different type of nest.
33
Carbon dioxide produced by cells is removed from the body primarily by which body system?
Digestive
Immune
Excretory
Respiratory
34
Fossilized warmwater marine creatures have been foundin mountainous areas of New England. This
The climate and geology of this areahave changed over time.
Scavengers carried the remains to higher regions.
These creatures were better adapted tocold climates
fossilization greatlychanged the original material.
35
A new organism is discovered; which would
most
likely be used for its kingdom classification?
The structure of the organism's anatomy
The organism's natural habitat
The location of where the organism was found
The color of the organism
36
Which of the following processes usually takes the longest amount of time?
Water vapor condenses to form a cloud.
Hot lava cools and forms new rock.
An ocean basin forms between two continents.
A seismic wave travels through the mantle.
37
If the trees were cut down, the energy supply of which population is most directly affected?
grasshopper
aphid
oriole
rabbit
38
Which of the following provides the best evidence that Earth has evolved over geologic time?
coral reefs that slowly changed size
rock containing fossilized seashells found on a mountaintop
desert sand dunes that were shaped by winds
deposits of sediment found at the mouth of a river
39
What are the basic structural units of living organisms?
organs
cells
nuculei
tissues
40
Present in animal cells, present in plant cells, and helps make energy available to the cell.
nucleus
cell wall
mitochondrion
chloroplast
