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Name: _______________________________________ Date: _______________ Period: _____
Biology: Objective 3 TAKS Review
Slide 2: Biotic – The kinds of __________ and _____________ that live in it. Abiotic – __________.
Characteristics such as soil type, rainfall amounts, and average ___________________________.
Slide 4: ___________________ – The entire area of the planet that supports life. Biome: An area defined
by specific *____________ and ___________ factors*. Community – The groups of
_________________ in an area and how they relate.
Slide 7: Ecology – The study of the _______________________ among living things. Symbiosis is a
__________ relationship between ____________ living things. When both are _____________ it
is called _________________.When one is ___________ and there is ___________ on the other it
is called commensalism. When one is helped and the other is ______________ it is called
_____________.
Slide 8: Mutualism . . . Sharks are cleaned by a little fish known as a Remora. The shark never eats them
since they clean bacteria off of the shark. Since both species are ____________, this is
________________________.
Slide 9: Commensalism . . . Orchids live high in tree-tops on the branches of large trees. They do not
________ the tree, but they are ___________ by being raised up into the sunshine and receiving
water.
Slide 10: Parasites . . . Parasites ___________ or __________ the host. A good example is a tape worm. It
intercepts all of the host’s food, causing the host to starve to death.
Slide 13: Energy-All energy on the earth comes from the _____________.
Slide 15: Energy Diagrams: At one end of the diagram are plants. They are called producers since they
are capable of turning sunlight into food by _____________. They pass ________% of the energy
they absorb to animals that eat them.
Slide 16: Consumers. 1st Order Consumers eat only ___________ and are also called
____________________. 2nd Order Consumers eat only ___________ and are called
_______________________. 3rd Order Consumers animals that eat other ________, they are also
known as ________.
Slide 18: 10% Energy Rule –Only ____% of the energy moves up to the next _________.
Slide 20: Food Chain – One of many ____________ relationships in a community. Arrows in a food chain
show the direction of __________________________. This is not the only feeding relationship
for these organisms. When several or all of the food relationships are shown it’s a
_______________________________.
Slide 22: Food Webs- attempt to show all the feeding __________________ in a community. The
direction of the arrows shows the direction of _________________________. At the bottom of
every web and every chain is a _________. These are the only things that can turn sunshine into
____________.
Slide 24: Predator and Prey.___________ are the animals that are eaten as a food source. Predator This is
the ________________. The population of the predator must be _____________ than the prey or
they do not have enough ____________.
Slide 26: Carrying Capacity-This is the___________________ of a specific population that an area can support with
enough food and living requirements. It is shown by a _________ on population graphs for a specific
species.
Slide 28: Man’s Effects on the Environment. Ozone O3 is a protective layer at the top of the ______________.
However, when it occurs near the ground, it is very harmful to all living things, it is _______________.
Slide 29: Global warming, also called the _____________________ is caused by excess burning of
________________ and destruction of our oxygen producing protista in the oceans, and
_________________ on land. Less plants means less oxygen and more CO2.
Slide 31: Evolution: The process of __________ over time. There are natural ____________ in all populations. As
climate changes occur, and as pressures in terms of food, space, shelter and predation occur, some
variations allow a species to _______________. The members who survive, reproduce causing the change
to become a ______________ of the species.
Slide 32: Speciation: Separation into new ____________. Geographic __________________ can cause two
different natural variations to become prominent causing 2 ____________ species. Reproductive
__________________ can have the same effect.
Slide 33: Homologous vs. Analogous Structures. Homologous means they have the same __________, but may be
different now. Ex: the upper arm bones in dogs, cows, cats and monkeys. Analogous means they have the
same ________________ but come from different _______________. Ex: bird wings and wings of bats.
Slide 34: Viruses. Viruses are not _________ because they can not ____________ on their own, and they do not
___________ and ___________. They do not exchange with their environment.
Slide 35: Viral Illnesses. Measles, mumps, colds, influenza, Cold Sores, mononucleosis, Epstein-Barr virus are all
___________________ that are caused by a virus. A Virus is has a coat, a strand inside of ________ or
________, and some type of attachment appendage. AIDS is a Virus that attacks and destroys
__________________ (immune cells).
Slide 36: Bacteria. Bacteria can cause illnesses too, however _______% of all bacteria is helpful, NOT harmful.
Without bacteria, you would not be able to make or eat __________ or _______________. Without them,
you would be ill most of the time. Strep Throat and Staph infections are examples of ________________
infections. _________________________ are used to treat bacterial infections.