NEW
Font size
S
M
L
XL
WorksheetsMissouri Biology EOC Reveiw
Total questions: 35
Worksheet time: 20mins
Name
Class
Date
1.
The gopher snake uses its glottis to produce a hiss that sounds similar to a rattlesnake's rattle. What most likely reason a gopher snake would do this?
a)
to attract prey
b)
to attract a mate
c)
to confuse predators
d)
to increase adrenaline flow
2.
A population of salamanders that lice in a river require clear, fresh water to survive. A flood causes tons of sediment to be suspended in the river. Which of these most likely will happen to the salamander population?
a)
The salamanders will adapt to life on land
b)
The salamanders will move to another river
c)
The salamanders will adapt to living in the muddy water
d)
The salamanders will decrease in number because of the water quality
3.
A reduction in which of these would lead to a decrease in all other populations?
a)
Coyote
b)
Grass
c)
Grasshoppers
d)
Squirrel
4.
Which of these best explains the difference between the way animals and plants exchange gases with their environment?
a)
Animals use only photosynthesis, while plants use both photosynthesis and respiration
b)
Animals use only respiration, while plants use both photosynthesis and repiration
c)
Animals use both photosynthesis and respiration, while plants use only respiration
d)
Animals use both photosynthesis and respiration, while plants only use photosynthesis
5.
What is the main function of a selectively permeable membrane?
a)
storage of water
b)
storage of chemicals
c)
breaks down molecules within the cell
d)
regulates what enters and leaves the cell
6.
The papaya mealybug is a pest that poses a threat to many tropical plants. Which fate of the mealybug would result from the inability of the species to reproduce?
a)
The species would mutate
b)
The species would increase
c)
The species would become extinct
d)
The species would continue to thrive
7.
In a certain insect, round wings (R) are dominant to pointed wings (r). Which cross will produce the greates number of genotypic and phenotypic variations?
a)
rr X rr
b)
Rr X Rr
c)
Rr X RR
d)
RR X RR
8.
Polar bears swim across large expanses of ocean while hunting for seals, their main source of food. The bears use sea ice as a resting spots during their long swims. However, the sea ice is rapidly melting as a result of global warming. Which statement describes what most likely happen if global warming continues at its present rate?
a)
Polar bear and seal populations will both increase
b)
Polar bear populations will decrease, and seal populations will increase.
c)
Polar bear populations will increase, and seal populations will decrease.
d)
Polar bear populations will decrease, and seal populations will remain the same
9.
A strand of DNA is exposed to intense heat. Which of these best describes what will happen to the strand of DNA?
a)
The chemical bonds of the DNA molecule will be broken
b)
More nitrogen base pairs will add on the the DNA molecule
c)
The chemical bonds of the DNA molecule will be strengthened
d)
The nitrogen base pairs in the DNA molecule will switch places.
10.
Which structure is primarily responsible for directiong all processes of a plant cell?
a)
chloroplast
b)
lysosome
c)
mitochondria
d)
nucleus
11.
The loss of habitat in a forest region has caused some plant species to become extinct, while others survive. The process by which some plant species survive and others do not in a changing environment is best explained by
a)
natural selection
b)
law of segregation
c)
biological magnification
d)
alternation of generations
12.
What is the role of hydrogen bonds in the structure of DNA?
a)
to code for proteins
b)
to synthesize proteins
c)
to separate the strands
d)
to connect the base pairs
13.
Which process allows for an organism to increase the number of body cells during development?
a)
budding
b)
conjugation
c)
meiosis
d)
mitosis
14.
A forest fire destroys the majority of the trees in a state park. Which effect will this most likely have a secondary consumers in that ecosystem?
a)
The amount of available energy will increase because there will be fewer predators in the forest
b)
The amount of available energy will increase because there will be less competition from producers
c)
The amount of available energy will decrease because fewer primary consumers are not reliant on primary consumers
d)
The amount of available energy will remain constant because secondary consumers are not reliant on primary consumers
15.
The loulu tree in Hawaii reproduces by a seed encased in a fruit Nonnative species, such as pigs and rats, eat the fruit as regular part of their diet, drastically reducing the regeneration rate of the loulu. What most likely would be the outocme for loulu trees in the next century without intervention?
a)
They would become extinct
b)
They would rebound and thrive
c)
They would remain at their current levels
d)
They would evolve a new way to reproduce
16.
Which of these would lead to a lower rate of photosynthesis in a plant?
a)
an increase in the amount of oxygen in the air
b)
a decrease in the amount of oxygen in the air
c)
an increase in the amount of carbon dioxide in the air
d)
a decrease in the amount of carbon dioxide in the air
17.
What is the result of the fertilization of an egg?
a)
it restores the diploid number of chromosomes
b)
it deletes polypeptide chains in the chromosomes
c)
it gives offspring more chromosomes that the parents
d)
it gives offspring fewer chromosomes than the parents
18.
Which of these best describes the initial change caused by a DNA mutation?
a)
a change in the swquence of base pairs
b)
a change in the production of enzymes
c)
a change in the number of nucleosomes within a cell
d)
a change in the number of hydrogen bonds between the bases
19.
A species of snake was introduced to a tropical region. Scientists then noticed a steady decline in the presence of a field mice and an increase in the number of snakes. Which of these is the most likely explanation about why the population size of each animal changed?
a)
The snakes introduced to the region dominated the habitat, forcing the mice to find another place to live
b)
The mice became prey to the introduced snakes, allowing the snake population to increase but decreasing the mice population
c)
The snakes introduced to the region competed with the mice for food, allowing the snake population to increase but decreasing the mice population
d)
The people in the surrounding are set traps that killed the mice, allowing the snakes to live without any predators and therefore to increase in number
20.
Which statement BEST describes an advantage of asexial reprofuction for a population of organisms?
a)
The population can increase in number more rapidly.
b)
the population can develop greater genetic diversity
c)
the population can maintain the same number of organisms
d)
the population can adapt more quickly to a changing environment
21.
The following cell structures are located within cells that make proteins. Which description BEST explained the relationship among these cell structures in making a protein?
NUCLEUS
RIBOSIME
ER
NUCLEUS
RIBOSIME
ER
a)
nucleus make proteint-> protein winds thru ER-> protein folds into shape
b)
nucleus directs ER to make protein-> ribosomes surround protein-> protein folds into shape
c)
ER creates protein-> DNA in nucleus codes for ribosomes to surround protein-> protein folds into its active shape
d)
DNA in nucleus codes for protein-> protein is assembled in ribosomes and moves to ER-> protein folds into shape
22.
Which of these best describes mutualism?
a)
a relationship between two species where both species benefit
b)
a relationship between two species where neither species benefits
c)
a relationship between two species where one species benefits and one is not affected
d)
a relationship between two species where on species benefits and the other is harmed
23.
How would a drop in temperature most likely affect the process of cellular respiration and photosynthesis?
a)
The rate of both would decrease
b)
the rates of both would remain constant
c)
the rate of PS would increase, the rate of CR would decrease
d)
the rate of PS would decrease, the rate of CR would increase
24.
Which abiotic factor limits the altitude at which plants can grow?
a)
the presence of a parasite
b)
the temperature of the area
c)
the presence of herbivorous animals
d)
the concentration of bacteria in the soil
25.
How many daughter cells are formed in meiosis?
a)
0
b)
1
c)
2
d)
4
26.
How many daughter cells are formed in mitosis?
a)
0
b)
1
c)
2
d)
4
27.
Which of these shows the steps by which proteins are coded and synthesized?
a)
RNA-> DNA-> protein
b)
DNA-> RNA-> protein
c)
protein-> RNA-> DNA
d)
protein-> DNA-> RNA
28.
Two gametes containing 20 chromosomes fuse during fertilization. How many chromosomes will the zygote?
a)
10
b)
20
c)
40
d)
80
29.
One species of Galapagos finches, the cactus finch, eats insects off cactus plants, A disease kills off most of the cacti. Which of these will most likely happen to the carrying capacity of the island?
a)
It would increase a small amount since the insect population would decrease.
b)
It would remain about the same since the finches would change to a different diet.
c)
It would increase exponentially since the insects would have limited places to hide.
d)
It would decrease considerably since finches and insects are specifically adapted to their niche.
30.
The chromosome structure in a cell accounts for fenetic variation based on the order of its
a)
sugars
b)
phosphates
c)
nitrogenous bases
d)
hydrogen bonds
31.
What will happen if an animal cell that has a solute concentration of 1% is placed in a 5% saltwater solution?
a)
It will shrink bacuse there is less water outside the cell
b)
it will burst because there is more water on the outside of the cell
c)
It will burst becuase there is more water inside the cell than outside
d)
It will remain the same size because there it an equal amount of water inside and outside the cell
32.
Which statement best describes the way DIFFERS from photosynthesis?
a)
Cellular respiration provides energy for the cell
b)
cellular respiration creates energy for the cell
c)
cellular respiration happens in the chloroplast
d)
Cellular respiration releases oxygen
33.
A cell with 24 chromosomes undergoes mitosis. How many chromosomes will each daughter cell have?
a)
6
b)
12
c)
24
d)
48
34.
A cell with 24 chromosomes undergoes meiosis. How many chromosomes will each daughter cell have?
a)
6
b)
12
c)
24
d)
48
35.
Proteins are the building blocks of all the tissues in the body. Which of teh following organelles are directly responsible for making and packaging proteins?
a)
mitochondria, ER, and golgi
b)
ribosomes, ER, and nucleus
c)
ER, mitochondria, lysosomes
d)
ribosomes and lysosomes
Reset
