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WMS 7th grade science quarter 2 review Flashcards | StudBud
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WMS 7th grade science quarter 2 review
WMS 7th grade science quarter 2 review
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SC.7.L Unit 4 standard 15.1, 15.2 and 15.3 Unit 5 standard 17.1, 17.2, 17.3
Flashcards
42 cards
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Practice quiz
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Host live
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Questions
42
Answers
1
What type of organisms or tissues are often preserved as carbon films?
trees
fish
Mammals
2
What naturalist is credited with the Theory of evolution by natural selection?
Charles Doolittle
Gregory Gruff
Darwin Charles
Charles Darwin
3
Which level of an energy pyramid has the least amount of food energy?
birds
grasshoppers
grasses
coyote
4
If a species is unable to adapt to changes in the environment it is likely to become extinct
true
false
5
_____ is a model of energy transfer that shows how food chains are interconnected
food chain
food web
energy pyramid
symbiotic relationships
6
Which symbiotic relationship occurs when 2 species in a community benefit from the relationship
predation
parasitism
mutualism
commensalism
7
The breeding of organisms for desired characteristics is called_______________
Mating
selective breeding
Natural selection
reproduction
8
___are body parts of organisms that are similar in structure/position but different in function
homologous structures
analogous structures
vestigial Structure
9
Which limiting factor is being displayed when an owl chases after a shrew?
predation
carrying capacity
overpopulation
competition for resources
10
What do homologous strcutures, vestigial structures and fossils provide evidence of?
analogous structures
food choices
populations
evolution
11
Living species that are closely related share a close common ancestor.
True
False
12
Which of the following organisms is a producer?
eagle
fish
alligator
sunflower
13
what method can scientist use to determine when a fossil appeared on earth?
biological evolution
mimicry
relative-age dating
selective breeding
14
In which of these areas would you expect to find the largest population of rabbits?
an area that has a large coyote population
an area that has a small amount of water
an area that has a small insect population
an area that has a large plant population
15
Variation is_____________
differences in characteristics
a variety of things
a slight difference in an inherited traits
changes in behavior
16
In which type of symbiotic relationship does 1 organism benefit and the other is not affected?
commensalism
parasitism
competition
mutualism
17
Which is the least likely to appear in the fossil record?
a worm's body
a dinosaur's teeth
a mammal's skull
a bird's beak
18
Population is _______
a single member of a species
all members of a species in an area at the same time
all populations in an area at the same time
how many people are alive
19
An __________ is made up of all living and non living things in an area
ecosystem
habitat
biosphere
community
20
Which pair of organisms would most likely compete for food?
mushroom and shrub
brown bear and salmon
cow and chicken
snake and hawk
21
Which change to a population would cause increase competition among it's members?
a decrease in population size
an increase in population size
an increase of disease in the population
an increase in predation on the population
22
When compared to other fossils, what structure indicates that ancestors of whales used to walk?
analogous structure
homologous wings
vestigial pelvic bones
camouflage
23
Which category are consumers usually classified?
diet
Appearance
size
habitat
24
the variation in the beaks of these birds is an example of _____________ adaptation.
camouflage
mimicry
functional
structural
25
Organisms that cannot make their own food are________________
consumers
producers
decomposers
greedy
26
Which of the following is NOT true?
the fossil record is incomplete
living species show evidence of common ancestry
the fossil record contains examples of fossil sequences
the fossil record is complete
27
What term describes anything that restricts the size of a population?
Competition
overpopulation
limiting factor
carry capacity
28
______________________ is the change over time in a population of related organisms.
geological time
community
Fossil record
Biological evolution
29
Which is a symbiotic relationship?
a fish laying eggs in a stream
a mistletoe plant living on a tree
a hawk eating a mouse
a plant using sunlight to make food
30
____________ occurs when the last individual organism of a species dies.
adaptation
environmental factors
extinction
variation
31
An ecosystem is all ___________ and ___________ things in an area
living - nonliving
plants - animals
animals - atmosphere
32
Which is a predator/prey relationship?
a tick on a deer
a cheetah chasing a gazelle
a bumble bee and flower
a fish laying eggs in a stream
33
a symbiotic relationship that benefits one species and harms the other is______________
commensalism
parasitism
predation
mutualism
34
The dates shown in the diagram refer to the ages of _________________
igneous rock
trace fossils
sedimentary rock layers
original material
35
What might happen to the population of pika's if there were no foxes?
the population would stay the same
the population would increase
the population would decrease
there would be no effect
36
The largest number of individuals of one species that the environment can support is___________
limiting factor
carrying capacity
Biotic potential
overpopulation
37
______________ adaptions involve the way an organism behaves or acts.
mimicry
functional
behavioral
structural
38
Camouflage and mimicry are adaptations that help species_________
avoid being eaten
blend in to their environment
adapt
39
____is all the populations of different species living together in the same area/the same time.
Community
biosphere
population
Ecosystem
40
A theory is an explanation that has___________
little evidence to support it
been proven beyond doubt
much evidence to support it
no evidence to support it
41
What is the process of natural selection?
Reproduction, adaptation, inheritance, time
Variation, inheritance, selection, time
variation, adaptation, competition, time
Reproduction, variation, competition, selection
42
which is the preserved evidence of the activity of an organism?
trace fossil
mold
cast
Fossil film
