stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Duplicate of SBA Review Flashcards | StudBud
Explore
/
Duplicate of SBA Review
Duplicate of SBA Review
67 terms
·
StudBud Administration
·
51 plays
A #science Quiz to review for #SBA 7th grade Test.
Flashcards
67 cards
F
Practice quiz
P
Host live
L
Questions
67
Answers
1
homologous pairs
always stay together
are separated during meiosis
are separated during mitosis
are separated after fertilization
2
the carbon-oxygen cycle explains:
how carbon and oxygen are cycled through ecosystems
the movement of oxygen and carbon atoms
the process of photosynthesis
the way carbon and oxygen atoms behave
3
Gregor Mendel is known as
the father of biology
the father of genetics
an alien from Mars
the most famous scientist ever
4
You can predict the possible genotypes and phenotypes of offspring if:
you know which form is dominant and which is recessive
you know the genotypes of the parents
you know only the phenotypes of the parents
you create a punnett square
5
homeostasis is:
the feedback control systems of the body
maintaining a life-supporting internal environment
cellular reproduction
the process of cellular respiration
6
DNA is:
the same thing as a gene.
the hereditary material of living organisms.
a common ancestor.
a homologous structure.
7
Random mutations in genes:
produce a variety of traits in a population
cause only unfavorable traits
cause only favorable traits
are adapatations
8
The order of steps in the water cycle is:
evaporation, cloud formation, condensation
evaporation, condensation, precipitation
precipitation, condensation, evaporation
precipitation, rainfall, condensation
9
genetic disorders are:
a change in the hereditary material of an organism
abnormal conditions that an organism inherits from parents
the process of DNA replication
the structure of DNA
10
cell division is necessary for:
reproduction and growth
reproduction only
growth only
reproduction, growth, and maintenance of body functions
11
the cell cycle is:
the period of time from one cell division to the next
the time a cell spends in mitosis
the time a cell spends in cytokinesis
the time a cell spends in interphase
12
consumers get their energy from:
the sun
exercising
decomposing rotting material
eating other organisms
13
living organisms contain mostly the elements
oxygen, glucose, hydrogen
hydrogen, helium, oxygen
sulfur, oxygen, lead
carbon, hydrogen, oxygen
14
the correct order of levels of organization in living things is:
organism, organ, organ system, tissue, cell
cell, tissue, organ, organ system, organism
cell, tissue, organ system, organism, organ
tissue, organ, cell, organ system, organism
15
a cell is:
the largest unit of a living thing
the smallest unit of a living thing
bigger than an organ but smaller than an organism
smaller than a molecule but bigger than a tissue
16
A population is:
all of the Earth's biomes
all of the cats, dogs, and humans in an area
the area in which an organism lives that provides its needs
all of the members of the same species living in an area
17
The oldest fossils are found:
in the upper-most layers of rock.
in the middle layers of rock.
in the deepest layers of rock.
in the sand on the beach.
18
polygenic traits are traits that:
are determined by only one gene
cannot be predicted with a punnett square
result in genetic disorders
are determined by more than one gene
19
the the purpose of photosynthesis is:
converting oxygen to carbon dioxide
converting the sun's energy into chemical energy
helping a plant turn green
allowing humans to have necessary water
20
An organism's scientific name comes from:
its order and class
its family
its taxonomy
its genus and species
21
photosynthesis and cellular respiration are related because
products of photosynthesis are reactants in cellular resp.
they are the same thing
photosynthesis makes cellular respiration happen
animals and plants can both photosynthesize
22
decomposers are important because:
they return nutrients to the soil to be recycled
they keep carbon and oxygen cycling in the atmosphere
they produce energy for consumers
they balance food webs
23
each rung of a DNA ladder consists of:
a twisted ladder of sugar and phosphate molecules
base pairs with A pairing G & C pairing A
base pairs with A pairing T & C pairing G
base pairs in random combinations of A, C, T, and G
24
all
living things do all of the following
except
reproduce
use energy
photosynthesize
grow, develop, and respond
25
towards the end of "interphase":
the nucleus splits into 2 new nuclei
the cell grows and develops
the DNA doubles
the cell membrane pinches off to form 2 daughter cells
26
during meiosis:
sex cells divide once and produce 4 haploid cells
sex cells divide once and produce 2 diploid cells
sex cells divide twice and produce 4 diploid cells
sex cells divide twice and produce 4 haploid cells
27
osmosis is:
movement of any molecule across the cell membrane
movement of water molecules across a semi-permeable membrane
movement of water molecules around the outside of a cell
the same as active transport
28
Food webs are:
the same as a food chain
overlapping ecosystems
overlapping food chains
the same as energy pyramids
29
Populations grow in size when:
number of deaths is greater than number of births.
number of births is equal to number of deaths.
the emigration and immigration rates are the same.
number of births is greater than number of deaths.
30
the kingdoms of living things are:
Animalia, Plantae, Bacteria, Felis, Domesticus
Animalia, Plantae, Bacteria, Fungi, Protista
Animalia, Class, Family, Order , Genus
Animalia, Plantae, Species, Family, Order
31
the variety of alleles in a population is called:
genetic abnormality
genetic variation
the study of genetics
genetic testing
32
A population's growth is limited by all of the following except:
temperature
nutrients
energy
space
33
The proper order of the steps in the scientific method is:
Observation, Question, Hypothesis, Experiment, Conclusion
Question, Experiment, Observation, Hypothesis, Conclusion,
Experiment, Conclusion, Hypothesis, Observation, Question
Question, Observation, Hypothesis, Experiment, Conclusion
34
The steps in species formation are:
species formation, adaptation, isolation.
adaptation, species formation, isolation.
isolation, species formation, adaptation.
isolation, adaptation, species formation.
35
probability is:
the mathematical chance that an event will occur
the mathematical formula for calculating percent
never used in mathematics
never used in science
36
energy pyramids show:
who eats whom in an ecosystem
how each member of an ecosystem gets its food
how energy moves from one organism to another in ecosystems
the difference between producers and consumers
37
most of the energy in an ecosystem is lost as ______ as it moves from level to level (trophic)
decomposing material
unusable heat
waste
evaporation
38
the difference between active transport and passive transport is:
passive transport does not require energy but active does
neither require energy
active transport does not require energy but passive does
both require energy
39
elements are:
two or more elements joined together
the simplest form of matter
the same thing as cells
the same as molecules
40
Extinction happens when:
there are very few members of a species left.
a species is thriving.
a species moves to a new habitat.
all members of a species die off completely.
41
Organisms of the same species:
are not genetically similar/can't produce offspring together
are genetically similar and can produce offspring together
are genetically similar but can't produce offspring together
are not genetically similar & can produce offspring together
42
When organisms with favorable adaptations survive and reproduce at a higher rate than others:
those organisms become extinct.
over-reproduction occurs.
natural selection occurs.
those organisms move to another area.
43
A punnett square:
shows all the possible combinations of alleles from parents
predicts the genotypes of parents
predicts the gender of offspring
shows the phenotypes of offspring
44
The compounds in living things are:
carbohydrates, lipids, proteins, nucleic acids
glucose, carbohydrates, cells, tissues
carbohydrates, lipids, sugars, starches
carbohydrates, lipids, fats, proteins
45
during osmosis, water molecules move:
from the inside of a cell to the outside of a cell
from areas of high concentration to low concentration
from the outside of a cell to the inside of a cell
from areas of low concentration to high concentration
46
Producers get their energy from:
nutrients
exercise
other organisms
the sun
47
people who have the genetic disorder "sickle cell anemia"
have no red blood cells
have abnormally shaped white blood cells
have abnormally shaped platelets
have abnormally shaped red blood cells
48
A place where an organism lives that provides the things it needs is called:
its habitat
emigration
population density
an ecosystem
49
the correct order of the phases of the cell cycle is:
interphase, cytokinesis, mitosis
cytokinesis, interphase, mitosis
interphase, mitosis, cytokinesis
cytokinesis, mitosis, interphase
50
Competition between 2 species happens when:
two or more species depend on the same limited source.
an animal hibernates during the winter.
two species live closely together and at least one benefits.
one animal hunts another for food.
51
The fossil record provides:
a historical sequence of life on Earth.
DNA base sequences.
a remnant of an organism from the past.
information about every species that ever existed on Earth.
52
during mitosis:
body cells divide once to replace old and damaged cells
body cells divide twice and produce a new organism
body cells divide 3 times in a row to replace old cells
body cells divide once and produce a new organism
53
a gene is:
a dominant allele
a recessive allele
the same thing as an allele
a unit that determines traits
54
in
complete dominance:
the traits blend together to produce a new trait
one trait is always dominant over the other
both traits show up at the same time
neither trait shows up
55
alleles are:
different forms of a gene
strands of DNA
possible combinations of genes from parents
the order of bases in a segment of DNA
56
an organism's traits are determined by:
both the environment and heredity
only the environment
only heredity
neither the environment nor heredity
57
Evolution is:
a place where an organism lives
the study of rocks and fossils
a theory about the process of how organisms change over time
a way of organizing the different species on Earth.
58
The smallest unit of ecological organization is
ecosystem
population
organism
community
59
An adaptation is:
the way an animal behaves.
an inherited trait that helps an organism survive.
a newly discovered species.
a theory about how organisms change over time.
60
All of the following are lines of evidence for evolutionary relationships
except:
DNA analysis.
homologous structures/comparative anatomy.
the same color of fur.
the fossil record.
61
compounds are:
a mixture of elements and particles
a mixture of particles
a substance containing 2 or more elements chemically joined
the smallest particle of an element
62
An experimental variable:
is the same as the control variable(s)
is the variable you change on purpose in an experiment
is the variable you keep the same in an experiment
is the variable that's affected by changing another variable
63
The first source of energy in ecosystems is:
clouds
soil
rain
sun
64
biotic factors are:
how an organism survives
the living parts of an ecosystem
interactions between species
the non-living parts of an ecosystem
65
Mass Extinctions are:
periods of large-scale extinction
a single species becoming extinct
an evolutionary relationship
periods of rapidly changing climate
66
atoms are:
combinations of different molecules
the simplest form of matter
groups of atoms chemically joined together
the smallest particle of an element
67
an embryo is:
a sex cell
a body cell
an organism in the earliest stages of development
a specialized cell
