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Biology Final exam review
Biology Final exam review
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ch 1, 11,12,13,14,15,16,18,19,20,21
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Answers
1
External fertilization occurs in which type of environment
savanna
forested
steppe
aquatic
2
Which situation would most likely lead to allopatric speciation
an injury causes an organism to seek out a new food source
A flood causes the formation of a new lake
a mutation causes a new trait to develop
a storm causes several large trees to fall down
3
which of the following traits characterizes gymnosperms
the plants carry exposed seeds on modified leaves
reproductive structures are located in a flower.
after fertilization, the ovary thickens and forms a fruit
the gametophyte is longest phase of the life cycle
4
prokaryotes that obtain their energy from chemical compounds are called ________
chemotrophs
lithotrophs
phototrophs
auxotrophs
5
where does the right ventricle send blood
the upper body
the lower body
the head
the lungs
6
annelids have a
none of the above
a true coelom
pseudocoelom
no coelom
7
Population genetics is the study of
populations of cells in an individual
the rate of population growth
how allele frequencies in a population change over time
how genes affect embryological development
8
how do arteries differ from veins
arteries carry blood
arteries are thin walled and are used for gas exchange
arteries have thicker wall layers
arteries have thinner wall layers and valves
9
The word theory in theory of evolution is best replaced by ______
Hypothesis
idea
alternate explanation
Fact
10
cubozoans are
nematodes
parazoans
arachnids
ecdysozoans
11
converting a prairie to a farm field is an example of
habitat loss
climate change
exotic species
overharvesting
12
in which group is parthenogenesis a normal event
rabbits
chickens
bees
sea stars
13
where would you expect to find the most photosynthesis in an ocean biome
abyssal zone
intertidal zone
aphotic zone
benthic zone
14
what is a phylogeny a destcription of
evolutionary theory
orgaisms on earth
DNA
mutations
15
the number of currently described species on the planet is about
10 million
150,000
1.5 million
17,000
16
which of the following consists of prokaryotic cells
protists and animals
bacteria and archaea
archaea and fungi
bacteria and fungi
17
The wing of a bird and the arm of a human are examples of ___
homologous structures
vestigial structures
analogous structures
molecular structures
18
neurons contain ___ which can receive signals from other neurons
dendrites
mitochondria
Golgi bodies
axons
19
which is the most diverse group of seedless vascular plants
hornworts
ferns
the liverworts
mosses
20
a country with zero population growth is likely to be
in Africa
economically undeveloped
economically developed
in Asia
21
what event is thought to have contributed to the evolution of eukaryotes
volcanic activity
glaciation
oxygenation of the atmosphere
global warming
22
what kind of ecosystem are exotic species especially threatening to
deserts
tropical forests
islands
marine ecosystens
23
the large central opening in the poriferan body is called the ________
stia
osculum
emmule
picule
24
Nutrient and waste requirements for the developing fetus are handled during the first week by
diffusion through the endometrium
the clastocyst
the chorion
the placenta
25
which best describes a branch point in a phylogenetic tree
a mating
new lineage
hybridization
a hypothesis
26
which of the following methods will help provide informat about the size and density of a pop.
mark and recapture
mark and release
life table
quadrat
27
the maximum growth rate characteristic of a species is called its
exponential growth pattern
carrying capacity
biotic potential
limit
28
which of the following is not a feature common to most animals
specialized tissue
development into a fixed body plan
asexual reproduction
heterotrophic nutrient sourcing
29
the land plants are probably descendants of which of these groups
green algae
red algae
angiosperms
brown algae
30
which of the following gives rise to the skin cells
ectoderm
endoderm
none of the above
mesoderm
31
pollination is an example of
crop pest control
a possible source of new drugs
chemical diversity
an ecosystem service
32
the respiratory system _______
establishes how many breathes are taken per minuet
provides the body with carbon dioxide
provides body tissues with oxygen and carbon dioxide
provides body tissues with oxygen
33
the bile from the liver delivered to
stomach
liver
small intestine
colon
34
A suggested and testable explanation for an event is called a ________
Variable
Theory
Control
Hypothesis
35
protists with the capabilities to absorb nutrients from dead organisms are called __________
heterotrophs
autotrophs
photoautotrophs
saprobes
36
What is the definition of Evolution
new species come from old species
none of the above
both 1 and 3
a gradual change
37
Inductive reasoning is considered
no conclusion is reached
none related observations
related observations to arrive at a general co-nclusion
none of the above
38
What is the first step to the scientific theory
do an experiment
form a hypothesis
Make an observation
Ask a question
39
the circulatory fluid in echinoderms is
saline
water
blood
mesohyl
40
pollen grain develop in which structure
the stigma
the anther
the filament
the carpel
41
which of the following is not a way that humans have increased the carrying capacity
using large amounts of natural resources
agriculture
use of language
domestication of animals
42
which term best describes the process where toxic substance increase along trophic level
biomassification
biomagnification
bioentrophy
heterotrophy
43
The first forms of life on Earth were thought to be
insects
prokaryotes
large animals such as dinosaurs
single celled plants
44
moss is an example of which type of plant
vascular plant
haplotic plant
seed plant
diplontic plant
45
What kind of trait is important to cladistics
parsimonious traits
analogous traits
shared derived traits
shared ancestral traits
46
which assumptions of cladistics is stated correctly
living things are related by descent from a common ancestor
speciation can produce one, two, or three new species
trait change from one state to another
the polarity of a character state change can be determined
47
the process where oxygen is depleted by the growth of microorganisms due to excess nutrients
dead zoning
retrophication
eutrophication
depletion
48
which female organ has an endometrial lining that will support a developing baby
breast
ovaries
uterus
labia minora
49
which of the following biomes is characterized by short growing seasons
tropical wet forests
savanna
arctic tundra
deserts
50
decomposers are associated with which class of food web
grazing
inverted
detrital
aquatic
51
Which statement about the taxanomic classification system is correct
There are more domains than kingdoms
species are the most specific category of classification
a phylum may be represented in more than one kingdom
kingdoms are the top category of classification
52
What is a phylogenetic tree
based on similarities and differences
based on ancestors becoming another species
composed of branch points
shows evolutionary relationships
53
which two extinction risks may be a direct result of the pest trade
habitat loss and exotic species introduction
habitat loss and climate change
climate change and exotic species introduction
overharvesting and exotic species introduction
54
Which scientific concept did Charles Darwin discover
sexual reproduction
Mutation
overbreeding
natural selection
55
species that have many off spring at one time are usually
both r and k
not selected
r selected
k selected