An example of natural selection is....

The same species has different coloration based on habitat

only dominant genes are expressed

The number of data points a scientist collects

Which is an example of artificial selection?

A farmer cultivating a type of lettuce that resists drought

Artificial selection is.....

selection of certain traits by humans

Natural selection means...

species change over generations to suit their environments

What is an independent variable?

The variable the scientist changes in the experiment

What is the product of cell division?

Exactly identical daughter cells

What is the basic idea of evolution?

All organisms share a common ancestor

What are the products of meiosis?

Four gametes that have different genes

What kind of conditions must exist for fossils to form?

moist location with pressure over time

What is bias in an experiment?

When a scientist skews an experiment to get expected results

Survival of the fittest means......

Those best adapted to the environment will reproduce

Which statement is NOT a part of Cell Theory?

All matter is composed of cells

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

A dominant and a recessive allele

something that gives an organism an edge for survival

an individual's genetic information

What are antibiotics?

Medicine that can treat bacterial infections

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

A cell from which specialized cells develop

Embryology is the study of how...

embryos form and develop in a similar way

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

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