eco 2 quiz 2023

Energy from the ___________ powers photosynthesis and enters through _____________ such as plants.

• water; herbivores
• sun; producers
• sun; herbivores
• water; producers

A bird builds its nest in a tree. The tree is unaffected. This relationship is

• parasitism

• commensalism

• predation

• mutualism

All are names to describe the cricket EXCEPT

• herbivore

• primary consumer

• secondary consumer

• 1st order consumer

Which organism receives the least amount of energy from the producer?

• Owl
• Grasshopper
• Lilypad
• Mouse

According to the 10% rule, if the sun contains 2,000 J of energy, the plants in level ___ would receive ____J of energy.

• A; 200

• B; 2,000

• C; 20

• D; 200

_{In this graph, the population curves depicts ___ growth and the carrying capacity is around _____.}

• exponential; 300

• logistical; 300

• exponential; 200

• logistical 200

Which one is an example of a density independent factor?

• disease
• food
• nesting
• weather

All contribute (add) carbon dioxide (CO2) to the environment EXCEPT

• cellular respiration (exhaling CO2)
• decomposition
• photosynthesis
• burning fossil fuels

Lichen and mosses are pioneering species because they are the first organisms to come back after primary succession

• True
• False

An ecosystem still recovering from deforestation (cutting down trees) is an example of

• climax community

• secondary succession

• primary succession

• none of these