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Second Semester Biology Final
Second Semester Biology Final
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1
Cross a
homozygous tall plant (TT)
with a
homozygous short plant (tt)
, what would be the resulting phenotype ratio?
100% tall
100% short
50% tall, 50% short
25% tall, 75% short
2
Which two biomes have the
least amount
of precipitation
(rain)
?
tropical savanna and tropical dry forest
boreal forest and temperate woodland
a.tropical rain forest and temperate grassland
tundra and desert
3
An allele that
overpowers another allele
is called
heterozygous
dominant
homozygous
recessive
4
One of the major elements of natural selection is that all
species have genetic
stability
melanism
variation
digression
5
. Based on this pedigree, how is
person 4 related to person 11
?
Aunt
Cousin
Grandma
Mother
6
The
repeated movement of water
between Earth’s surface and the atmosphere is called
condensation cycle.
evaporation.
water cycle.
precipitation.
7
DNA
replication
results in two DNA molecules,
each with 1 new strand and 1 original strand
each with 2 original strands
one with 2 new strands, the other with 2original strands
each with two new strands
8
What goes
in Box 5
of the food web in Figure 3–2 (HINT: think bacteria)?
carnivores
herbivores
scavengers
decomposers
9
The main difference between a
heterotroph
and an
autotroph
is
Heterotrophs all act as decomposers andautotrophs are never decomposers
Both heterotrophs and autotrophs make their own organic nutrients(food).
Autotrophs make their own organic nutrients (food) andheterotrophs do not.
Heterotrophs make their own organic nutrients(food) and autotrophs do not.
10
Which of the following is an
autotroph
?
deer
tree
mushroom
leopard
11
How much energy
is available from one trophic level to the next in a food/energy pyramid?
10%
0.1%
20%
1%
12
RNA differs from DNA in that RNA
contains the base uracil
All of these are true
contains a different sugar molecule
is single stranded
13
Which of the following organisms is
NOT an example of an herbivore
?
white-tail deer
cottontail rabbit
none
coyote
14
At which point in the cladogram to the right do you think would represent having the
characteristic of wings
?
Point B
Point A
Point E
Point C
15
A
carnivore
is an organism that
eats plants only
eats meat only
eats everything
eats dead organisms
16
If starting parent cell has 46 chromosomes, how many chromosomes will EACH of 4 daughter cells have at end
Meiosis 2:
56
76
23
46
17
When lions prey on a herd of antelopes,
some are killed and some escape
. Which part of natural selection is this?
acquired characteristics
survival of the fittest
descent with modification
reproductive isolation
18
What is the
original source of almost all the energy
in most ecosystems
carbon
sunlight
carbohydrates
water
19
Gregor Mendel
concluded that traits are
not inherited by offspring.
determined by recessive factors only.
determined by dominant factors only.
inherited through the passing of factors from parents to offspring.
20
Conditions in the environment that
impact the size
of the population are called
habitats
limiting factors
populations
nichess
21
A
bird stalks, kills, and then eats an insect
. Based on its behavior, which ecological terms describe the bird?
herbivore, decomposer
autotroph, herbivore
carnivore, consumer
producer, heterotroph
22
A
change
in a sequence of DNA is called a
mutation.
single-gene trait.
recombination.
polygenic trait.
23
What is an organism that
feeds only on plants
called?
omnivore
herbivore
detritivore
carnivore
24
Which of the following combinations of sex chromosomes represents a
female
?
XY
XXY
XX
XXXY
25
The branch of biology dealing with
interactions among organisms
and
between organisms and their environment is called
ecology.
modeling.
economy.
recycling.
26
x-ray (R/r) vision is a
dominant
allele. B
oth parents
are
heterozygous
, what mix of
phenotypes
for the kids? (Punnett)
4 kids with x-ray vision, 0 kids without x-ray vision
3 kids with x-ray vision, 1 kid without x-rayvision
1 kid with x-ray vision, 3 kids without x-rayvision
2 kids with x-ray vision, 2 kids without x-rayvision
27
In DNA, which nitrogenous base is abbreviated as “
T
”?
theory
thymine
triple
thyroid
28
The
shark in the food chain is what?
decomposers
consumers
sharknados
producers
29
Genes for traits
that help an organism be more
successful reproductively
can be expected to
become more common in the future
eventually be eliminated by natural selection
cause the extinction of the species
cause it to evolve into a new species
30
Organisms that have
two identical alleles (the same)
for a particular trait are said to be
dominant.
homozygous.
hybrid.
heterozygous.
31
In Darwin’s theory of natural selection, individuals
who survive
are the ones best adapted for their environment. Why?
choices made by plant and animal breeders.
lack of competition within the species.
possession of adaptations developed through useor lost through disuse.
possession of inherited adaptations thatmaximize fitness.
32
What animals eat
both producers and consumers (think meat and plants)
?
chemotrophs
autotrophs
herbivores
omnivores
33
Which symbolizes a cross between
a homozygous green-podded plant
(GG)
with a
homozygous yellow-podded plant (gg)?
gG x Gg
GG x gg
GG x GG
Gg x gg
34
What is an
ecological model
of the relationships that form a network of
complex interactions
?
food chain
a population
food web
an ecosystem
35
In humans, pelvis and the femur, are involved in walking. Whales, pelvis and the femur, which no longer work, are called
a fossil
acquired traits
a creepy picture on Google
vestigial structures
36
Based on the pedigree above,
how many children did 8 & 9 have
?
4
1
3
3
37
Which of the following is
not
an example of
evolution
?
Human brains becoming larger over time
Species of tortoises in the Galapagosislands descend from a common ancestor
A caterpillar going through a change into abutterfly
Horses becoming taller and faster over millions of years
38
Which of the following descriptions about the
organization of an ecosystem
is correct?
Populations make up species, which make up communities.
Communities make up species, which make up populations.
Species make up communities, which make up populations.
Species make up populations, which make up communities.
39
B is the dominant gene for blue feathers and b is recessive gene for red feathers. What % for red feathers?
0%
75%
25%
50%
40
One way that a species evolves is
some organisms with some traits survive and reproduce better than others
. This is:
divergent evolution
natural selection
coevolution
convergent evolution
41
DNA is
copied
during a process called
replication
transformation
transcription
translation
42
Which organism would have the
greatest numbers (population)?
algae
squid
small fishes
sharks
43
For 10 years, the population has been stable. Which would likely
cause the number of mice to begin to decrease
?
a decrease in competition between mice
a decrease in disease
an increase in predators (who eat them)
an increase in mating season
44
A
group of eagles living
around
Lake Tahoe
would be considered a(n):
abiotic factor
ecosystem
community
population
45
What is
one biotic factor
that affects the size of a population in an ecosystem?
number of predators present
average yearly temperature
average yearly precipitation
local geography
46
Green plants are
herbivores.
omnivores.
producers.
comsumers.
47
Which of the following is
not
a principle of
natural selection?
Adaptations allow some organisms to survive better than others
Evolution will occur as an organism gets olderand learns more
Organisms compete for limited resources
Most species produce more offspring than will actually reproduce
48
One dominant allele and one recessive allele (two different alleles)
for eye color, the genotype would be:
homozygous
heterozygous
haploid
homologous
49
10% of the energy stored
in an organism can be
passed on to the next trophic level
. Of the remaining energy, the rest is
eliminated as heat
stored as groceries
stored as fat
used in reproduction