ECOLOGY

feed by chemically breaking down organic matter

with which food chain will give the buzzard the most energy

any living part of the environment with which an organism might interact is called

consists of all earths fresh water and salt water, including water vapor and rain

____ data are descriptive and involve characteristics that cannot usually be measured

any non living part of the environment,such as sunlight , heat, precipitation, humidity, wind or water current.

To be useful in science, a hypothesis must be

which is a primary producer

if at the producer level the energy is 10000 J how much would be found in the secondary consumer trophic level

A tadpole becomes a frog

____ is a group of individuals that belong to the same species and live in the same area

example of an autotroph

Life processes involve a set of chemical reactions called

animals that kill and eat other animlas. includes dogs, snakes, cats ect

a ___ is a group of similar organisms that can breed and produce fertile offspring

All organisms that live in a place, together with their physical environment are known a(n)

includes all the "usual solid stuff"- rocks, continents, and ocean floor.

a tentative scientific explanation that can be tested by further observation or by experimentation.

All variables must should be kept unchanged, or controlled

The genetic code ___ carries the directions for inheritance, and offspring usually resemble their parents

species, community,population,biome, ecosystem, biosphere are in order from smallest to largest (levels of organization)

A logical interpretation based on what scientists already know is called what?

organisms that rely on other organisms for energy and nutrients are called

Which of the following statements about a controlled experiment is accurate

Blood PH remains constant

acquire energy from other organisms, usually by eating them

as assemblage of different populations that live together in a defined area is called

a ____ is exposed to the same conditions as the experimental group except for changes in the variable

A tested, Highly-reliable scientific explanation of events in the natural world that unifies many repeated observations

Which is considered a biotic factor

with each step to a higher trophic level,biomass and numbers decrease

Most organisms require that their internal environments remain in a constant range, and so they maintain _______

when a new organism has a single parent it is called?

The variable that is deliberately changed

cells from two different parents unite to produce the first cell of a new organism is called what?

a series of organisms in which energy is transferred from one organism to another

includes all living organisms and the environments they live in

the first producers of energy-rich compounds that can be used later by other organisms. all life depends on this

in photosynthesis what is happening?

The act of noticing and describing events or processes in a careful, orderly way

___ includes all the gases that surround earth

carbon dioxide and water into oxygen and energy rich carbohydrates such as sugars and starches is called?

obtains energy and nutrients by eating plant leaves, roots, seeds, or fruits.

how many food chains can the snake have?

pyramid of ___ show relative amount of energy available at each trophic level of a food chain or food web

The interactions among organisms, populations,and communities and their interactions with their environment is called

pyramid of ___ is a model that illustrates the relative amount of living organic matter in each trophic level

species, population, community,ecosystem,biome,biosphere are in order from smallest to largest (levels of organization)

if 9kg is found at the tertiary consumer level how much energy is found at the producer level

how many food chains can the buzzard have?

can capture energy from non living sources and convert it into forms living cells can use

Life on earth has changed over time

organisms are composed of tiny living units

if 45 kg of energy is found at the primary consumer level how much energy is found at the producer level

which is considered a biotic factor

which is considered an abiotic factor

Chemical energy is used to produce carbohydrates

_____ data are numbers obtained by counting or measuring

a network of feeding interactions, through which matter and energy move is called

in both photosynthesis and chemo-synthesis, energy rich carbohydrates are produced

How does energy flow through ecosystems

animals that eat both plants and other animals

Organisms have means of detecting a change in their environment and responding to this ______

what trophic level is the fox

a plant grows towards sunlight.

each step in the food chain or food web is called?

the timouse is a herbivore