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Life Science FINAL Study Guide
Terms in this set (134)
Which group of organisms includes only multicellular heterotrophs?
Which is the broadest Classification level?
Which is one way in which scientists get information about the evolutionary history of species?
by comparing organisms' body structures
An organism's scientific name consistes of
its genus name and species name
A plant grows toward the light. The plant's action is an example of
Spontaneous generation is a mistaken idea because living things
are produced only by living things
What contribution of Charles darwin had a major impact on classification?
his theory of evolution
Which kingdom includes only autotrophs?
Which of the following do all living things nedd to survive?
Which of the following would you use to identify an organism?
a taxonommic key
The process of change during an organism's life that results in a more complex organism is called ________________________.
Organisms in the same family are ___________ closely related than organisms in the same order.
Only the _______________ word in an organism's complee scientific name has its first letter capitalized.
In sexual reproduction, offspring are _______________ the parent.
A bird fluffs it feathers to trap body heat to keep warm during winter months. This is an example of __________________
Organims break down and build up materials in a process called _________________.
The levels of classification of organisms in order are: domain, kingdom, phylum, class, order, family, genus, and species. The broadest, least specific level is ________________________
Linnaeus classified organisms according to _______________ in observable features.
Organizing rocks according to their similarities is an example of the process of ________________________.
________________________ is the scientific study of how organisms are classified and named.
The one factor that a scientist changes in an experiment is called the
________________________ reproduction involves only one parent.
A(n) _________________________ is usually a homologous structure that is shared by all organisms in a group.
shared derived characteristic
An organism whose cells lack a nucleus is called a(n) _________________________.
Bacteria and archaea are placed in separate kingdoms because
Their structure and chemical makeup differs
If two species have very similar structures, they may have evolved from a(n)_________________________.
Organisms belonging to which kingdom are all autotrophs?
_________________________ is the process by which individuals that are better adapted to their environment are more likely to survive and reproduce.
Multicellular organisms that make their own food belong to the _________________________ kingdom.
To determine whether two organisms are related, scientists may compare the _________________________ of their cells.
One thing a branching tree diagram shows is the _________________________ in which specific characteristics may have evolved.
Which shapes describes some viruses?
all of the above
What process results in genetically different bacteria?
Viruses are considered to be nonliving because they
do not show all the characteristics of life.
What characteristic do all algae share?
They are autotrophs.
Club fungi are named for
the appearance of their reproductive structures.
What characteristic of viruses makes them useful in gene therapy?
their ability to enter cells.
What important role do bacteria called decomposers play?
They return basic chemicals to the enviorment.
A fungus-plant root association is an example of
a symbiotic relationship
Which organism would be most likely to cause damage to a corn crop
during a wet summer?
Frogs are one type of population in a pond ecosystem. Frogs eat algae to
survive. If all the algae in a pond suddenly died, what might happen
to the frog population?
The frog population would decrease.
The organism that a virus enters and multiplies inside of is called a(n) _____________.
A(n) _____________ is an organism that lives on or in a host and causes it harm.
A(n) _____________ is a substance introduced in the body to help produce chemicals that destroy specific viruses.
All viruses have a structure featuring an inner core and a protective _____________ coat.
Tiny structures called _____________ produce proteins inside bacteria.
Scientists use bacteria to make _____________.
Autotrophic bacteria release _____________ into the air.
_____________ is a method of slowing down food spoilage.
Bacteria have no nuclei and are ____________.
Plant-like protists are commonly called _______ .
_______ are animal-like protists.
_______ , such as those that grow on fruit and stale bread, are a type of fungus.
A(n) _______ consists of a fungus and either algae or autotrophic bacteria that live together.
Except for the simplest fungi, the cells of most fungi are arranged in structures called _______ .
Unicellular yeast cells undergo a form of _______ reproduction called budding.
A(n) _______ is a tiny cell that is able to grow into a new organism.
_______ have hair-like projections that beat with a wavelike motion to move the organism.
Algae contain many types of _______ , or chemicals that produce color.
The three major groups of fungi are classified by the appearance of their _______ structures.
The leaf's cuticle
The energy that powers photosynthesis comes from
Organisms that produce their own food are called
What happens in the Phloem?
Food moves up from roots.
What type of plant has seeds that are encased in protective fruit?
Which statement best describes a gymnosperm?
a vascular plant uses pollen to produce seeds that are not enclosed in protective fruits.
Germination will not happen unless a seed
What part of a woody stem forms rings that indactae the tree's age?
Animals are helpful to plants in the process of
Which part of a plant is responsible for absorbing water and minerals and anchoring the plant?
The three parts of a seed are
embryo, stored food, and seed coat.
The green pigment found in specialized plant structures is called ______________________.
The young leaves of some ________________ are known as fiddleheads.
Nearly all plants are ________________________.
A _________________________is a seed plant with "naked" seeds.
Seedless vascular plants use ______________________ to reproduce.
_________________________ species outnumber all other land plant species by about seven to one.
The vascular tissue that conducts water and nutrients in a plant is _________________________.
During photosynthesis, plants produce ________________.
The system of tube-like structures inside a plant through which water, minerals, and food move is called ___________________ tissue.
The root-like structures that anchor a moss plant and absorb water and nutrients are called ______________________.
The ____________ helps a plant retain water.
Major functions of animals include obtaining food and oxygen, keeping internal conditions stable, movement, and
Which of the following is a characteristic shared by all animals?
Their bodies have many cells.
What does the backbone surround and protect in a vertebrate?
the spinal cord
When the temperature of the enviorment changes, the body tempature of a reptile
A(n) __________________ is a group of similar cells that perform a specific function.
The most basic unit of structure in animal bodies is the __________________.
__________________ is a chemical in cells that controls an organism's inherited characteristics.
An animal with ______________ symmetry usually has a head at its front end.
A jellyfish has __________________ symmetry because many lines can be drawn to divide its body into two halves that are mirror images.
Animals that are more __________________ related are grouped on the same branch of a classification tree.
A sponge is an example of an animal with __________________ symmetry
A group of related tissues work together to form a(n) __________________.
A vertebrate is an animal __________________ a backbone.
__________________ allow animals to perform their functions.
One of the main functions of animals is to get food and__________________.
Pads of soft tissue separate the ________________, giving the spine flexibility.
A(n) ______________ runs down the back of all chordates.
About __________________ percent of all known animals are invertebrates.
Echinoderms are different from most other invertebrates because they have an __________________.
All worms have ______________symmetry.
Sweat glands, fur, and feathers are most likely to be found on a(n) _____________________________.
___________ have stinging cells and take food into a central body cavity.
In some chordates, such as lancelets, grooves between the throat pouches become ____________.
The body temperature of a(n) _____________ changes with temperature changes in its environment.
The simplest animals with a brain are ___________ worms.
An organism's habitat must provide all of the following except
The nonliving parts of an ecosystem are called
The place where an organism lives and that provides the things the organism needs is called its
A group of antelope leaving the herd in search of better grassland is an example of
All of the following are examples of limiting factors except
Which of the following is an example of a predator adaptation?
a shark's powerful jaws.
A hawk building its nest on an arm of a saguaro cactus is an example of
__________________ is an abiotic factor in the environment that is important for plants to make their own food.
If an area has all the wolves that it can support, the wolf population has reached its ____________________.
A group of organisms that can mate with each other and produce offspring that can also mate and reproduce is called a _________________.
The nonliving things that interact with an organism are called _________________ factors.
If foxes arrive in an area and catch and eat a large number of rabbits, the foxes are causing an increase in the _____________________ of the rabbit population.
A population can decrease due to deaths or ___________________.
Water and food are examples of _______________ for populations
All the organisms that live in a particular area and their nonliving surroundings make up an __________________________.
If animals cannot find enough places to build nests, it is because __________________________ is a limiting factor for the population.
All the members of one ___________________ living in a particular area make up a population.
An increase in a predator population will likely result in a ______________________ in the prey population.
Pioneer species break down rocks, forming the beginning of ______________________.
Secondary succession is usually ______________________than primary succession.
A grackle and a sparrow try to eat from the same ear of corn in a field. This is an example of ______________________.
A forest fire is followed by ______________________ succession.
The role of an organism in its habitat is its _______
______________________ are behaviors and physical characteristics that allow organisms to live successfully in their environments.
Two examples of pioneer species are ______________________ and lichens.
The series of changes that occur in an area where no soil or organisms exist is called______________________ succession.
A relationship in which two species live closely together and both benefit is ______
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