Solutions
_____ are close interactions between species that have evolved
over long periods of time. when these interactions enhanve the
production and population growth of both species, they are
called ____ Correct Answers symbioses; mutualisms
_____ involves combining genetic information from two
individuals to make a new gentically unique individual Correct
Answers sexual reproduction
_____, which include lobsters and crabs have ____ legs and, in
the ocean, fill many of the ecological roles filled by insects on
land Correct Answers crustaceans; branched
a behavior is shaped by Correct Answers both environmental
and genetic factors
a hummingbird is visually attracted to the red, tubular flowers of
a trumpet vine. it drinks nectar from the flower and, in doing so,
inadvertently transfers pollen from one flower to the next. in this
form of communication, who is the receiver, and what
information is being transferred? think carefully here... Correct
Answers the flower is the sender, the hummingbird is the
receiver, and the availability is the information
a large population made of smaller populations linked by
emigratino and immigration is a _____ Correct Answers
metapopulation
,a lion urinating to mark its territory is a type of communication
(T/F) Correct Answers true
a species____ niche comprises the full range of climate
conditions and food resources that permits the individuals in a
species to live Correct Answers fundamental
a species' _____ niche will be smaller than its _____niche due to
interactions with other organisms in the community Correct
Answers realized; fundamental
a/an _____ is a community of organisms and the physical
environment it occupies. Correct Answers ecosystem
abiotic Correct Answers physical; factors that influence
evolution including climate, nutrient availability
according to Niko Tinbergen, which of the following defines
and helps researchers understand an animals behavior Correct
Answers adaptive function, causation, development, and
evolutionary history
according to this phylogeny (fig 44.1 in text), which of the
following correctly lists the sequence in which multicellularity,
tissues, and bilateral symmetry arose, from the oldest character
to the most recent character? Correct Answers multicellularity,
tissues, bilateral symmetry
acoelomate Correct Answers no body cavity
,adaptive function Correct Answers how does the behavior
promote the individual's ability to survive and reproduce?
TERRITORY, MATE, OFFSPRING, ETC
age structure Correct Answers provides insight into birth and
death rates, expected longevity of individuals and proportion
that is able to reproduce
agnatha Correct Answers hagfish (jawless fish) and lampreys
(jawless also)
Agnatha, lampreys Correct Answers most basal extant
vertebrate, adults are mainy predaceous and migratory; oral disk
or keratin teeth
Agnatha, myxini Correct Answers hagfish; recently became
vertebrae due to DNA evidence, two rows or keratin for "teeth",
slime
allantois Correct Answers second membrane; encloses a space
where metabolic waste collects
alpine Correct Answers -similar to tundra but lacks permafrost;
varying temps
-occuring throughout world, always just below snow line
(=10,000 ft)
-windy and cold; thin atmosphere (limited protection from UV)
-plants are low and slowgrowing
-grazers: mountain goats, llamas, yaks, marmots
-predators: wolves and cats
, altruistic behaviors Correct Answers self-sacrifice to help the
group; decreases the fitness of organism exhibiting behavior
-how could this exist? they DONT; usually take turns
ametabolous metamorphosis Correct Answers young and adult
wingless, only change is in size
ex: silverfish
amnion Correct Answers membrane surrounding a fluid-filled
cavity that allows embryo to develop in watery environment
-adaptation for land, more freedom from water
-ex: reptiles, mammals, birds
amniotes Correct Answers animals either lay eggs or give birth
to live young
amphibians Correct Answers tetrapods that remain dependent
on free water for reproduction; "double life"= wet and dry
-evolved from heavily scaled fish, porous skin, eggs are moist
-amniotic egg; the amniotes- most have up to four egg
membranes
animal Correct Answers heterotrophic, multicellular eukaryotes
that form a gastrula during development =1.5 million species
described
animal gametes or spores are produced during the cellular
process referred to as _______ Correct Answers meiosis
annelida hirudinea Correct Answers leeches; parasitic,
predatory