Food Webs & Energy Pyramids

sun then plants

What is the initial source of energy for any food web?

rabbit and shrew

In this food web, what organisms give their energy to the snake?

sun then plants

What is the initial source of energy for any food web?

rabbit and shrew

In this food web, what organisms give their energy to the snake?

decrease

What happens to the amount of energy as it moves through a food web? (increase or decrease)

producers level

At which trophic level the food web is the most energy available?

mountain lion and hawk

In this food web, what are the apex predators?

the transfer of energy

What do the arrows show in the food web?

decomposers

What are the organisms that breakdown dead plants and animals returning basic chemicals to the environment?

producer

A green plant that makes its own food is called a_.

10%

In an Energy Pyramid, how much energy is transferred from one level to the next?

herbivores

Organisms that only eat plants are called __.

omnivores

Organisms that eat plants and animals are called __.

kite

In this food web, if the snake population dies out, which organism would be affected first?

autotroph

Another word for producer. Organisms that make their own food

heterotroph

Another word for consumer. Organisms that cannot make their own food.

primary consumer

Eats producers (either omnivores or herbivores)

secondary consumer

Eats 1st consumers (either omnivores or carnivores)

tertiary consumer

Eats 2nd consumers (typically carnivores, possibly omnivores)

apex predator

Consumers at the top of an energy pyramid that don't get eaten by anything else.

biodiversity

the variety of life in the world or in a particular habitat or ecosystem.

trophic level

Each step in a food chain or food web or energy pyramid

predator

An animal that hunts other animals for food

prey

Animal hunted or caught for food

carrying capacity

Largest number of individuals of a population that an environment can support

heat

In an energy pyramid, 90% of energy is lost to the environment as ___

photosynthesis

process of converting light energy to chemical energy

energy pyramid/food pyramid

pyramid shaped diagram demonstrating how energy, biomass or numbers decrease from lower to higher trophic levels.

energy

the ability to do work

biomass

total mass of organisms at a given trophic level in a food chain or food web

ecology

the study of how living things interact with each other and with their environment.

model

a representation of an object or system that is easier to study and manipulate

ecosystem

a system formed by the interaction of a community of organisms with their physical environment

food chain

diagram that represents a single pathway through which energy and matter flow through an ecosystem

food

organic molecules, such as glucose, that organisms use for chemical energy.

organism

an individual living thing.

seed

structure produced by a seed plant that contains an embryo and food supply enclosed within a tough coat.