Reading: The First Hunter

What is the disease caused by the Schistosoma mansoni flatworm?

• Intestinal schistomosiasis

• Tapeworm infestation

• Liver fluke infection

• Blood fluke disease

What is the primary symptom of tapeworm infestation?

• Weight loss

• Chronic ill health

• Severe abdominal pain

• Loss of appetite

Which invasive flatworm is causing damage to farms in the Scottish Highlands?

• New Zealand flatworms

• Liver flukes

• Blood flukes

• Tapeworms

What flatworm evidence appears in the fossil record?

• Within the fossilized structures of larger animals.

• Imprints on rock

• Impressions of tracks & trails

• Bones, shells, and teeth

What is the purpose of having a head?

• ability to seek out and hunt prey

• a sense of direction & mobility

• having your sense organs be the first thing meeting a new environment

• all of these

What does it mean to have bilateral symmetry?

• The two sides (left & right) of the body mirror each other.

• Animals have both a head and tail direction.

• Their bodies are flattened.

• Each of the two sides (left & right) are different from one another.

Where would you NOT find a flatworm?

• Moist soil

• Marine environments (both fresh & salt)

• Within other organisms

• Arid soils

What level of specialization do flatworms have?

• Specialized cells that work together

• Specialized tissues that perform specific functions

• Specialized tissues and organs

• No clear specialization

Which of the following is FALSE about the digestive process?

• There is only a single opening, which serves as both a waste disposal and

  a mouth.

• They eat by extending a tube called

  a pharynx that secretes enzymes to help soften the food.

• The meal passes through a single central channel, loops around the digestive tract and is released back out the pharynx.

• The whole system works in

  reverse to get rid of waste.

What is the benefit of a central nervous system?

• Having sensors like eyes, smell, and taste.

• Ability to differentiate between prey and predator.

• The development of a bundle of nerves which act as a brain that can transmit and analyze nerve impulses.

• All of these