Ecology Multiple Choice Vocabulary Practice

Which of the following would not be included in a description of an organism's niche?

• its trophic level

• its color

• the humidity it prefers

• when it reproduces

Ecology is the study of the interaction of living organisms

• with eachother

• with eachother and the food they eat

• withe eachother and the physical environment

• with the physical environment

The physical location of an ecosystem in which a given species lives is called a

• habitat

• niche

• trophic level

• biome

Which of the following are adaptations for avoiding unfavorable conditions?

• predation

• mutualism

• limiting factor

• dispersal

Which of the following would be a biotic factor in an ecosystem?

• Bacteria

• Soil

• Temperature

• Rainfall

Which nitrogen cycle process is occurring when plant roots absorb ammonium ions and nitrate ions for use in making molecules such as DNA, amino acids, and proteins?

• Fixation

• Assimilation

• Ammonification

• Denitrification

You might think that if a bird landed in the mouth of a crocodile the crocodile would eat it. Well not the Egyptian Plover bird. Egyptian Plovers and crocodiles have a unique relationship. Crocodiles can't floss, so they get food stuck in their teeth. All that food rots their teeth and probably causes pain. When a crocodile feels the need for a good tooth cleaning, it will sit with its mouth open. The bird recognizes this invitation, and if one is nearby it will fly into the mouth of the crocodile. It eats the food stuck in the croc's teeth and flys away. The plover has gotten a meal. The relationship is an example of ______________________.

• Commensalism

• Mutualism

• Parasitism

• Predation

In a hypothetical food chain, which of the following would be a producer?

• corn

• mushroom

• deer

• lion

Which of the following would most likely DECREASE the carrying capacity of a species?

• New batteries that decrease the burning of fossil fuels.

• Increasing deforestation of trees to make more paper products.

• Biodegradable fishing nets that dissolve when lost at sea.

• Limiting the use of chemical pesticides to keep crops healthy.

Which of the following is allowing the human population to continue growing?

• few barriers to dispersal

• pollution of water supplies

• uneven food distribution

• overcrowding in cities