BOTLE Sem1 Finals Review

An elephant weighs 6,000 kg. To maintain it's weight, the elephant must consume 400 kilocalories/kg of body weight each day to survive. How many kilocalories must the elephant consume each day to maintain its body weight?

• 400 kilocalories

• 240,000 kilocalories

• 2,400,000 kilocalories

• 6,000 kg

How much energy would a dolphin consume if it ate 3 herrings (135 kcal each), 5 mackerel (200 kcal each) and 2 squid (140 kcal each) in a day?

• 475 kcal

• 865 kcal

• 2,000 kcal

• 1,685 kcal

Why would an animal hunt in a pack/group?

• The individual cannot meet its daily needs hunting alone

• The individual needs to also hunt to feed the rest of its pack

• Prey are too large to take down alone

• All of the above

Why would an animal hunt alone?

• The animal can meet it's daily requirements by catching prey on its own

• Sharing the prey caught would result in a decrease in net gain

• The animal can hunt multiple times a day to obtain all of the prey it needs

• All of the above

Which group is not represented in this food web?

• producers

• primary consumers

• secondary consumers

• decomposers

What do the arrows in a food chain/ food web represent?

• An organism eating another organism

• energy flowing through the ecosystem

• an organism getting consumed by another organism

• none of the above

What do the arrows in the food chain indicate about the flow of energy in an ecosystem?

• Energy is continuously recycled by the organisms in an ecosystem.

• More of the available energy in an ecosystem is given to large animals than to small animals.

• Energy flows in one direction in an ecosystem, from producers to consumers.

• Organisms at the end of the food chain receive more energy than those at the beginning.

How would the removal of earthworms from the food chain affect the other organisms?

• The number of bass will increase.

• The number of crayfish will decrease.

• The crayfish will get their energy directly from the sun.

• The number of bass and ospreys (bird) will increase.

The diagram shows part of an aquatic food web for a stable lake ecosystem in Connecticut. What is the source of energy for the algae?

• waves

• sunlight

• bacteria

• rotifers, water fleas and tadpoles

Which trophic level has the most available energy?

• producers

• primary consumers

• secondary consumers

• tertiary consumers