Biology Chapter 4/5 Quiz

Autotrophs

• Organisms that rely on external energy sources.
• Organisms that consume other organisms.
• such as grasses, make their own food

• Organisms that do not require sunlight.

Photosynthesis

• Photosynthesis occurs only in animals.
• process of breaking down food in plants.

• process using sunlight to create sugar, done by autotrophs such as plants.

• Photosynthesis requires only water and soil to occur.

Herbivore

• multitude of interconnected food chains at many trophic levels

• tiny organism that uses photosynthesis

• animals that feed on plants such as zebras, and deers. Only eating meats

• animals that feed on plants such as clover or grasses. Only eating plants.

Phytoplankton

• All make their own food using the energy of compounds in the environment

• tiny organism that uses photosynthesis

• animals that feed on plants such as clover or grasses. Only eating plants

• maximum population size of a biological species that can be sustained by that specific environment

Carrying capacity

• maximum population size of a biological species that can be sustained by that specific environment

•  factors that affect a population size and its carrying capacity

• such as grasses, make their own food

• All make their own food using the energy of compounds in the environment

Limiting factors

• factors that affect a population size and its carrying capacity

• factors that are only related to climate conditions.

• factors that have no impact on distribution.

• factors that are always beneficial for growth.

Primary producers

• animals that feed on plants such as clover or grasses. Only eating plants

• animals that feed on plants such as zebras and deers. Only eating meat

• tiny organism that uses photosynthesis

• All make their own food using the energy of compounds in the environment

Food chain

• a basic network that shows the linear flow of nutrients and energy from one trophic level to another

• a multitude of interconnected food chains at many trophic levels

Food web

• a basic network that shows the linear flow of nutrients and energy from one trophic level to another

• a multitude of interconnected food chains at many trophic levels

Which of the following best describes how energy flows in this ecosystem?

• Energy is lost completely at each trophic level without transfer.
• Energy flows from producers to consumers in a hierarchical manner.
• About ten percent of the energy at one trophic level is passed to the next trophic level.

• Energy flows randomly among all organisms in the ecosystem.