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Biology Benchmark 1 Review Flashcards | StudBud
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Biology Benchmark 1 Review
Biology Benchmark 1 Review
40 terms
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Benchmark
Flashcards
40 cards
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Questions
40
Answers
1
Which two factors contribute to an
increase
in population size?
birth rate and emigration rate
death rate and emigration rate
death rate and immigration rate
birth rate and immigration rate
2
How much energy is transferred from level C to level D?
25%
90%
50%
10%
3
If chlorine is shifted to an anion, what would it be called?
Chlorine
Chloride
Chlorite
Chlorophyll
4
Which of the following
would not
be the result of a population increase?
able to fight off diseases better
decreased fertility
lack of caring for young
aggresion
5
In an ecosystem, many fungi break down and recycle organic materials. Fungi are an example of
producers
secondary consumers
decomposers
primary consumers
6
An ecosystem that has a wide VARIETY of species within it is said to have a large
niche
biodiversity
population
habitat
7
The final stage of succession is called a
climax community
primary community
food web
population
8
What makes water such a good solvent?
It is great at dividing up molecules
It is nonpolar
It is a magical raptor
It is a polar molecule
9
Human hunting of a single animal can threaten the entire ecosystem by
introducing new, nonnative species
disrupting the food web in that ecosystem
causing sudden climate change
causing large scale habitat destruction
10
Which of the following is considered an
abiotic
factor?
water
consumers
bacteria
plants
11
What are all the chemical changes that occur within an organism?
Cancer
Protein
Enzyme
Metabolism
12
How many liters are in a kiloliter?
.001
1000
100
10
13
What type of bond is sharing electrons?
Ionic
Covalent
Hydrogen
Polar
14
Following a major change in an ecosystem, an ecosystem is most likely to survive when
there is a small population
there is little or no competition
there is great diversity of species
there is a high birth rate
15
Why is there less energy at the TOP of an energy pyramid than at the BOTTOM?
energy is lost as heat or used by organisms
the animals at the top are larger
there are fewer animals at the top
animals can't use energy from the sun
16
Carbon is released to the atomosphere via
burning wood and fossil fuels
denitrification
urea or uric acid
transpiration
17
Nucleotides are the smaller units that make up ______
nucleic acids
carbohydrates
lipids
proteins
18
What part of an atom is negatively charged?
Proton
Neutron
Negatron
Electron
19
The natural extinction of a predator can negatively affect the environment by leading to
increased sediment deposits
unrestricted prey species growth
harmful human pollution
major climate change
20
What is the type of change would be tearing a piece of paper or mixing salt and sugar?
Brownian
Physical
Chemical
Metabolic
21
What is the name for a large molecule that is made up of many smaller subunits?
atom
monomer
ion
polymer
22
In a food web, what organisms make up the first trophic level?
decomposers
secondary consumers
primary consumers
producers
23
What is the first step within the scientific method?
Make a prediction
Ask a question
Collect data
Make an observation
24
If a lipid has as many hydrogen atoms as it can, what would it be known as?
Hydrosaturated
Unsaturated
Polyunsaturated
Saturated
25
Sometimes human development of land splits ecosystems into pieces. This is known as
biological magnification
habitat fragmentation
genetic diversity
invasive species introduction
26
When a population begins to decrease because the # of organisms exceed what can be supported,
the population has a biodiversity factor
there is a habitat loss factor
the population has adaptive radiation
the population went above the carrying capacity
27
Proteins that speed up chemical reactions are called
enzymes
cellulose
polar molecules
polymers
28
Besides habitat fragmentation, pollution, and habitat loss, ___ can affect biodiversity
biogenesis
abiotic factors
native species
exotic species
29
What effect would cutting down a large portion of a rainforest have on its ecosystem?
decrease in amount of available carbon dioxide
increase in diversity of plant and animal life
stabilization of wildlife migration
decrease in amount of available oxygen
30
All living things are made up of
cells
cellulose
cork
waste
31
The clearing of forests for construction and the pollution of ecosystems are both examples of
nonnative species introduction
sudden climate change
natural ecosystem changes
human habitat destruction
32
What is the name of compounds that have the same chemical make up but different structures?
Polymers
Isotopes
Isomers
Monomers
33
One of the
most
important parts of the nitrogen cycle are the
molecules that make up the ozone layer
decomposers that capture nitrogen from air
nitrogen molecules released into air through respiration
bacteria that change nitrogen gas into ammonia and nitrates
34
During the water cycle, water leaves the atmosphere and goes to oceans, lakes through
precipitation
condensation
evaporation
elimination
35
The biggest threat to biodiversity is
extinction
exponential growth
habitat loss
captivity
36
Amino acids are the smaller units that make up ______
lipids
proteins
carbohydrates
nucleic acids
37
Fatty acids are the smaller units that make up ______
nucleic acids
lipids
proteins
carbohydrates
38
If a wildfire affects an ecosystem, what process will the ecosystem use to rebuild itself?
climax community
habitat fragmentation
primary succession
secondary succession
39
What is the purpose of biology?
Study of organisms
The study of human interactions
The study of life
The study of interactions of behaviors
40
If a compound is low on the pH scale, what would it be known as?
Ion
Acid
Neutral
Base
