What is the basic idea of evolution?

All organisms share a common ancestor

The number of data points a scientist collects

an individual's genetic information

A cell from which specialized cells develop

An example of natural selection is....

The same species has different coloration based on habitat

Artificial selection is.....

selection of certain traits by humans

only dominant genes are expressed

something that gives an organism an edge for survival

What are antibiotics?

Medicine that can treat bacterial infections

What is bias in an experiment?

When a scientist skews an experiment to get expected results

What kind of conditions must exist for fossils to form?

moist location with pressure over time

It is the code for life - all living things have unique DNA

What is an independent variable?

The variable the scientist changes in the experiment

Natural selection means...

species change over generations to suit their environments

Embryology is the study of how...

embryos form and develop in a similar way

Which statement is NOT a part of Cell Theory?

All matter is composed of cells

What is the product of cell division?

Exactly identical daughter cells

What are the products of meiosis?

Four gametes that have different genes

If an organism is heterozygous for a trait then it has...

A dominant and a recessive allele

Survival of the fittest means......

Those best adapted to the environment will reproduce

Which is an example of artificial selection?

A farmer cultivating a type of lettuce that resists drought

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Year to Date Review Quiz - 7th Grade Science

40 termsStudBud Administration107 plays

This test covers core concepts of the first semester of 7th grade science: the scientific method, microbiology, heredity, and evolution.

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Questions 40

Answers

1
What is the basic idea of evolution?
The species that are the fittest eat the weaker species
All organisms share a common ancestor
Species interbreed in order to create new, stronger species
Animals give their offspring the traits they need to survive
2
What is sample size?
How a scientist samples a specimen
The number of times a scientist does an experiment
The method a scientist uses to take a sample
The number of data points a scientist collects
3
What impacts evolution on a genetic scale?
If organisms pass dominant genes to offsping
If organisms pass recessive genes to offspring
Random mutation
If an individuals genes show evidence of a common ancestor
4
A genotype is...
an individual's cell cycle
an individual's observable traits
an individual's genetic information
an individual's gametes
5
What organelle is considered the “brain” of the cell?
Mitochondria
Cell Membrane
Golgi Apparatus
Nucleus
6
What is the process of cell division called?
Osmosis
Triosis
Mitosis
Meiosis
7
What is a stem cell?
A cell found beneath other cells
A cell from which specialized cells develop
A cell that causes cancer
A cell that controls the cells around it
8
An example of natural selection is....
The same species has different coloration based on habitat
Different species take on different roles in their habitat
Predators consume prey based on availability
Animals of the same species have variation
9
Artificial selection is.....
survival of the fittest
selection of certain traits by humans
selection determined by the organisms
determined by natural causes
10
Which is NOT a line of evidence for evolution?
the fossil record
comparative anatomy
Human written records
embryology
11
What is the name for special cell division to produce gametes?
Cytosis
Osmosis
Mitosis
Meiosis
12
What organelle is considered the “powerhouse” of the cell?
Lysosome
Mitochondria
Nucleus
Cell Wall
13
In a phenotype...
only dominant genes are expressed
you can discover an organism's genetic background
all genes are expressed
only favorable genes are expressed
14
Fossils are...
ancient animal bones
found only in museums
petrified wood
sedimentary rock
15
Which of the following is an example of an adaptation?
predator behavior
shadowing
mimicry
evolution
16
What is adaptation?
out of control cell growth
something that gives an organism an edge for survival
the way people grow up
rapid evolution
17
What are antibiotics?
Medicine that can treat bacterial infections
Medicine that can improve human abilities
Medicine used to correct cell growth
Medicine that can treat viral infections
18
What is bias in an experiment?
When a scientist skews an experiment to get expected results
When a scientist collects data
When a scientist reports results to the community
When a scientist makes an educated guess
19
If an organism is homozygous dominant for a trait, it has...
two recessive alleles
one dominant and one recessive allele
two dominant alleles
no alleles
20
What kind of conditions must exist for fossils to form?
moist location with pressure over time
unusually dry climates
places with a lot of plant life
forests or meadows
21
What organelle do plant cells have that animal cells do not have?
Nucleus
Chloroplast
Vacuole
Cytoplasm
22
Multicellular organisms are considered what?
Cytoplasm
Eukaryotes
Neurons
Prokaryotes
23
What is DNA?
It is how knowledge is stored in the brain
It controls the functions of the cell
It protects us from mutations
It is the code for life - all living things have unique DNA
24
What is the name of Darwin’s landmark book that changed biology forever?
Natural Selection of Species
Evolution of Species
On the Origin of Species
Survival of the Fittest
25
Where is DNA found?
In our blood cells
In chromosomes
In the brain
In the cell membrane
26
Who is considered the father of genetics?
Charles Darwin
Gregor Mendel
Alfred Wallace
Isaac Newton
27
What is an independent variable?
The predicted outcome of the experiment
What the scientist reports after an experiemnt
The variable the scientist changes in the experiment
The reason for doing an experiment
28
Which is NOT an example of natural species extinction?
Volcanic eruption
Disruption of food chain
Clear-cutting rainforests
Asteroid impact
29
What scientist is given credit for the theory of evolution?
Isaac Newton
Charles Darwin
Gregor Mendel
Albert Einstein
30
Natural selection means...
humans guide the development of species
selective breeding
species change over generations to suit their environments
species grow the traits they need to survive
31
What are gametes?
new cells
reproductive cells
cancerous cells
brain cells
32
The peppered moth example illustrates...
speciation
species analysis
mimicry
camouflage
33
Embryology is the study of how...
embryos form and develop in a similar way
embryos affect our lives
embryos mutate
embryos undergo evolution
34
Which statement is NOT a part of Cell Theory?
All matter is composed of cells
All cells come from existing cells
Cells are the basic unit structure of life
All life is made of one or more cells
35
What is the product of cell division?
Mutated cell growth
Four identical cells
Exactly identical daughter cells
Two similar cells
36
These creatures are now extinct, but we know they are the ancestors of modern birds
dinosaurs
dodo birds
crocodiles
eagles
37
What are the products of meiosis?
Two gametes that have different genes
Four gametes that have different genes
Two gametes that have the same genes
Four gametes that have the same genes
38
If an organism is heterozygous for a trait then it has...
Two dominant alleles
No alleles
Two recessive alleles
A dominant and a recessive allele
39
Survival of the fittest means......
Individuals who workout will have the best chance to make it
Those best adapted to the environment will reproduce
Those who are fastest will survive
Those who are strongest will survive
40
Which is an example of artificial selection?
A farmer cultivating a type of lettuce that resists drought
A human buying a dog that is good at hunting
A hunter choosing which wolves to take with it on a hunt
A cat trapping and killing rodents in a residence

Year to Date Review Quiz - 7th Grade Science Flashcards | StudBud