Ecology Review

Abiotic factors in the environment are all __________. 

• living
• nonliving

A group of populations that interact in an area is __________

• ecosystem
• community
• biome
• population

Lions, birds, snakes and trees are all __________.

• abiotic factors
• biotic factors
• part of a niche
• in the same food chain

Autotrophs are organisms that can

• make their own food
• eat other organisms
• walk on 2 feet
• eat like pigs

Humans are omnivores.  This means that

• humans can only eat plant based foods
• humans are at the top of the food chain
• humans are only capable of digesting other animal products
• humans eat both meat and plants

Which level of an ecological pyramid has the largest number of individuals and biomass?

• primary consumers
• the level that contains producers
• secondary consumers
• top predators

As you move up the trophic levels of the ecological pyramid, what happens to energy?

• It decreases
• In increases

If the producers contain 10,000 kcal of energy, how much is available to the secondary consumers?

• 1000 kcal
• 100 kcal
• 10 kcal
• 1 kcal

What do the arrows show in the image?

• who is boss
• the direction of the sun
• transfer of energy
• who's eating who

What would be a limiting factor for carnivores?

• dark daylight hours
• drought-like conditions
• small amounts of grasses and shrubs
• small number of prey