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WorksheetsLife Science Post Test
Total questions: 55
Worksheet time: 2hrs 50mins
Name
Class
Date
1.
a)
37
b)
38
c)
36
d)
39
2.
a)
The amount of fertilizer used in corn production for certain years can be averaged.
b)
The best time of year for growing the most corn can be determined.
c)
The average cost of corn can be found based on the amount harvested the year before.
d)
The average bushels of corn harvested over a certain number of years can be calculated.
3.
a)
Cell membrane, nucleus, mitochondria, endoplasmic reticulum, and cytoplasm.
b)
Nucleus, mitochondria, endoplasmic reticulum, chloroplast, and cytoplasm.
c)
Nucleus, mitochondria, endoplasmic reticulum, cell wall, and cytoplasm.
d)
Cell membrane, nucleus, chloroplast, vacuole, and cytoplasm.
4.
a)
Polar bear and Brown bear
b)
Arctic wolf and and Brown bear
c)
Lemming and Musk Ox
d)
Arctic fox and Arctic hare
5.
A student is studying an area with an average temperature of -10 Celsius and an average precipitation of 12 centimeters. He finds arctic moss and lichen plant species in the area. What biome is the student most likely studying?
a)
Forest
b)
Grassland
c)
Desert
d)
Tundra
6.
a)
Number 1
b)
Number 2
c)
Number 3
d)
Number 4
7.
Organs in the human body are composed of ___.
a)
tissues which are composed of organ systems
b)
tissues which are composed of cells
c)
cells which are composed of tissues
d)
organ systems which are composed of tissues
8.
A student is conducting an experiment with two organisms that she believes are either frogs or toads. To determine if these two organisms are the same species, the student records if the organisms are similar looking, can mate with one another, and ___.
a)
have the same body length
b)
produce offspring that can reproduce
c)
have similar hunting techniques to catch prey
d)
ingest the same types of food
9.
Which statement concerning historical contributions to genetics is correct?
a)
Gregor Mendel created the model for the structure of DNA
b)
Rosalind Franklin revealed the basic laws of heredity through mathematial calculations
c)
James Watson and Francis Crick discovered the double helix structure of DNA
d)
Theodor Schwann discovered the function of DNA to store and pass on genetic information
10.
A sea anemone provides a protective environment for a clownfish, while the clownfish lures larger fish into the poisonous tentacles of the sea anemone. This relationship is an example of ___.
a)
mutualism
b)
commensalism
c)
predator-prey
d)
parasitism
11.
a)
both genotype ee
b)
a combination of genotypes Ee and ee
c)
both genotype EE
d)
a combination of genotypes EE and ee
12.
A coyote population preys upon a mouse population in an ecosystem. Over time, humans begin to hunt the coyotes causing the population to decrease rapidly. Which statement correctly identifies how this decreasing coyote population affects the ecosystem?
a)
The mouse population will begin to quickly rise.
b)
The coyote population will find a new source of prey.
c)
The mouse population will relocate to a new ecosystem.
d)
The human population will begin to hunt the mouse population.
13.
A plant traps light energy from the sun by using the chemical ___.
a)
a carbon found in the chlorophyll
b)
chloroplast found in the cytoplasm
c)
chlorophyll found in the chloroplast
d)
glucose found in the chloroplast
14.
a)
The Extinction of the Giraffe Species
b)
The Genetic Diversity of the Giraffe Species
c)
The Giraffe Species Niches
d)
The Giraffe Species Genotypes
15.
a)
2
b)
3
c)
4
d)
5
16.
a)
6CO2
b)
C6H12O6
c)
6O2
d)
6H2O
17.
a)
Archaea
b)
Bacteria
c)
Eukarya
d)
Protista
18.
a)
Dependent is the size of environment, and the Independent is the number of beetles.
b)
Dependent is the size of the environment, and the Independent is the amount of food eaten.
c)
Dependent is the amount of food eaten, and the Independent is the size of the environment.
d)
Dependent is the number of beetles, and the Independent is the amount of food eaten.
19.
a)
soil
b)
carbon
c)
water
d)
nitrogen
20.
Eutrophication is harmful to an ecosystem because ___.
a)
the addition of excessive nutrients cause an increase in algal blooms
b)
higher levels of evaporation cause the water level to drop significantly
c)
a new predator species is introduced and drastically decreases the prey population
d)
cold water rises to the top of the ocean and decreases nutrients
21.
Which food chain correctly lists a lizard as receiving its energy directly from a producer?
a)
Lizard > Lady Beetle > Moth > Shrub
b)
Moss > Pigeon > Lizard > Mountain Lion
c)
Grass > Grasshopper > Mouse > Lizard
d)
Fern > Lizard > Owl > Wolf
22.
a)
There was an increase in bear observations from 1990 to 2011
b)
There was a rapid decrease in bear observations from 1933 to 1957
c)
The lowest number of bear observations were recorded from 1996 to 1999
d)
The highest number of bear observations were recorded from 1948 to 1953
23.
Which hypothesis from a science experiment is investigating a positive human impact on an ecosystem?
a)
If humans encourage each other to reduce waste, then there will be less need for landfills
b)
If humans grow a surplus amount of crops on a farm, then the cost of food will be inflated
c)
If humans increase the number of deer they hunt, then the deer population will be able to find food
d)
If humans make more gasoline powered cars, then the cost of gasoline will increase
24.
Which cell organelle has the function of supplying energy to the cell?
a)
Mitochondria
b)
Endoplasmic reticulum
c)
Cell membrane
d)
Nucleus
25.
Scientists have genetically engineered certain species of plants to be more resistant to freezing temperatures. This was accomplished by scientists altering the ___.
a)
DNA code
b)
process of mitosis
c)
amount of cell membrane
d)
movement of cells
26.
Which statement is an example of osmosis?
a)
A water molecule moves through a cell membrane to enter a cell
b)
A substance other than water moves through a cell membrane to enter a cell
c)
A cell membrane blocks all molecules from entering or exiting a cell
d)
A cell membrane only allows water molecules to exit a cell
27.
a)
More than one variable was purposely changed
b)
Results were not properly documented
c)
No independent variable was used
d)
The hypothesis was incorrectly written
28.
A scientist believes that American dogs evolved from Canadian wolves. To test this hypothesis, the scientist should ___.
a)
study the fossil records in both America and Canada
b)
observe wolves living in their current environments
c)
interview American and Canadian dog owners
d)
conduct an experiment on the food choices of dogs and wolves
29.
a)
Southern leopard frog
b)
Mosquito
c)
American alligator
d)
Grass carp
30.
Which of the following phrases describes an organism that is classified in the fungi kingdom?
a)
A eukaryotic organism with a cell wall and chitin that is classified in the same kingdom as yeast
b)
A eukaryotic organism without a cell wall that is classified in the same kingdom as frogs
c)
A eukaryotic organism with a cell wall and cellulose that is classified in the same kingdom as sunflowers
d)
A prokaryotic organism with a cell wall that is classified in the same kingdom as acidobacteria
31.
A butterfly is born with a genetic change in the color of its wings. The butterfly reproduces and passes the genetic change in color to its offspring. This is an example of ___.
a)
a mutation
b)
natural selection
c)
an adaptation
d)
extinction
32.
After a pride of lions kills its prey, a pack of hyenas attacks the lions to fight over the lions' kill. This is an example of ___.
a)
competition between species
b)
cooperation between species
c)
territory establishment between species
d)
symbiotic relationships between species
33.
a)
If spider plants are placed in different amounts of soil, then the spider plant in the largest amount of soil will have the most growth
b)
If different types of plants are placed in different amounts of soil, then the spider plant will have the most growth
c)
If different amounts of soil are placed in planting pots, then three different species of plants will be capable of growing
d)
If spider plants are placed in different amounts of soil, then the amount of soil will begin to increase over time
34.
a)
The bacteria and fungi are decomposers that break down organic matter to be recycled in the environment.
b)
The bacteria and fungi are primary producers that absorb sunlight and convert their energy into food.
c)
The bacteria and fungi are decomposers that use sunlight to make their own food.
d)
The bacteria and fungi are primary producers that break down organic matter to be recycled in the environment
35.
A student observes a cell divide and produce four genetically different cells. The student has observed the process of ___.
a)
meoisis
b)
mitosis
c)
cytokinesis
d)
osmosis
36.
Which of the following is a biotic factor in a grassland?
a)
Wind
b)
Prairie dog
c)
pH
d)
Algae
37.
Which of the following is a biotic factor in a freshwater ecosystem?
a)
Wind
b)
Prairie dog
c)
pH
d)
Algae
38.
Which of the following is an abiotic factor in a freshwater ecosystem?
a)
Wind
b)
Prairie dog
c)
pH
d)
Algae
39.
Which of the following is an abiotic factor in a grassland?
a)
Wind
b)
Prairie dog
c)
pH
d)
Algae
40.
A description of an adaptation of an animal in a desert ecosystem would be ___.
a)
is only active at night to avoid the extreme heat of the day
b)
hibernates through the winter to avoid the cold
c)
remains warm because its fur is composed of hollow hairs
d)
has sharp claws for gripping and climbing
41.
a)
towards the sunlight
b)
towards a water source
c)
away from cold air
d)
away from precipitation
42.
a)
Stinging cells, Invertebrate, Aquatic
b)
Invertebrate, Aquatic, Amphibian
c)
Stinging cells, Hard shell, Aquatic
d)
Vertebrate, Hard shell, Amphibian
43.
The ecosystem of the coast of Virginia Beach will likely experience the highest amount of disturbance from ___.
a)
the construction of a new pier
b)
recreational fishing off the end of a pier
c)
increased non-motorized boat traffic near a pier
d)
humans swimming around a pier
44.
Ants and aphids have a relationship in the environment. Ants consume the honeydew left by the aphids, and in turn, the ants protect the aphids from predators. This behavior in the environment should be categorized as ___.
a)
cooperation
b)
competition
c)
social hierarchy
d)
territorial imperative
45.
A scientist wants to observe the part of the cell where genetic information is stored. The scientist needs to observe the ___.
a)
chromosomes found in the nucleus
b)
vacuoles found in the cytoplasm
c)
ribosomes found in the cytoplasm
d)
nuclear membrane found around the nucleus
46.
a)
Chart A
b)
Chart B
c)
Chart C
d)
Chart D
47.
Two humans mate and pass along genetic information for green eyes to their child. The coded information for green eyes is found in the ___.
a)
DNA of a cell
b)
mitochondrion of a cell
c)
endoplasmic reticulum of a cell
d)
vacuole of a cell
48.
a)
Math knowledge
b)
Blindness from illness
c)
Curly hair
d)
Widow's peak
49.
a)
Negative effects of human food harvest on the ecosystem
b)
Number of species living around the surrounding fields
c)
Amount of human interactions with the ecosystem
d)
Number of crops that could potentially grow in the fields
50.
a)
585
b)
836
c)
925
d)
1,468
51.
Which of the following is NOT included in cell theory?
a)
Living cells only come from other living cells
b)
Cells are the smallest structure of life
c)
Cells perform mitosis to produce new cells
52.
Which of the following is NOT included in cell theory?
a)
Cells perform the functions necessary for life
b)
All living things are composed of cells
c)
Cells of plants contain chloroplast organelles
53.
What will happen if a first order consumer population (like deer) are wiped out by disease?
a)
A population of second order consumers will compete with others for a new food source
b)
A population of first order consumers will not have enough food and will have to relocate
c)
A population of prey will reproduce without restriction and have to compete for food and space
d)
A population of second order consumers will take over for the wiped out population
54.
What will happen if a predator population is hunted and no longer exists?
a)
A population of second order consumers will compete with others for a new food source
b)
A population of first order consumers will not have enough food and will have to relocate
c)
A population of prey will reproduce without restriction and have to compete for food and space
d)
Producers will die without the population of first order consumers
55.
What will happen if a population of producers (like a plant) is destroyed by over-harvesting?
a)
A population of second order consumers will compete with others for a new food source
b)
A population of first order consumers will not have enough food and will have to relocate
c)
A population of prey will reproduce without restriction and have to compete for food and space
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