Ecology

To survive and breed successfully organisms need to be..

• Well adapted for where they live
• Large for where they live
• Small for where they live
• Genetically superior to all other living organisms

High light levels are needed for plants to carry out which process?

The green pigment found in plant leaves is...

• Chlorophyll
• Chloroplasts
• Cytoplasm
• Chloroform

Plant living in low light areas might compensate by having...

• larger leaves
• larger roots
• more stomata
• more xylem vessels

Which of the following is not an abiotic factor that can affect populations?

• Temperature
• Light intensity
• Moisture levels
• Competition

Which of the following is not an abiotic factor that can affect plants?

• Temperature
• Light intensity
• Soil pH
• Availability of oxygen

Which of the following is not a biotic factor that can affect plants?

• Availability of food
• New pathogens
• New predators
• Amount of carbon dioxide

We call competition between members of the same species ______________ competition.

New predators moving into an area can quickly wipe out existing species because the existing species has no _____________ against the new predator

A new pathogen can wipe out a species because the species has no _____________ to the new pathogen

• resistance
• defence
• camouflage
• antibiotics