Listening, unit 5

How can scientists learn from nature?

• They can plant different species of plant to study how the work and improve them

• They can rise sharks for possible medical applications

• They can use designs and structures from nature to create something new

What is biomimicry?

• How scientists and engineers study different animals and plants in order to create movies

• How scientists teach engineers how to use observation methods to come up with new inventions

• How scientists and engineers create new species of animals based on existing ones

• How scientists and engineers adapt the surfaces of animals and plants for new purposes

Which is not a main idea from the listening?

• Many organisms have unique surface structures

• Each surface has a special function that is important for the organism

• Scientists and engineers can adapt the structures found in nature for other applications

• Scientists and engineers can create new species out of the structure of existing ones

A synonym of the word "surface" is

• structure

• layer

• scale

• function

What is so interesting about shark skin?

• Many species of fish are a target for them

• Its large, sharp teeth scare people

• Its skin has tiny scales in the shape of a diamond

• A lot of organisms grow in their skin

Shark skin prevents the growth of ________

• scales

• diseases

• fish

• bacteria

"The shark's _________ has a unique structure. It is covered with a layer of tiny scales. Which synonym of "layer" goes in the space?

• diamond

• bacteria

• skin

• scale

What is a possible application for shark skin?

• A thin film on walls, floors, and other surfaces

• A thin film on sick people in hospitals

• Transplants of skin to other animals like fish or whales

What is so interesting about the pitcher plant?

• Its surface prevents it from getting bacteria or other organisms

• It can grow in size to attract insects

• Its surface changes from rough when wet to slippery when dry

• Its surface changes from rough when dry to slippery when wet

How does the pitcher plant catch food?

• Causes insects to fall inside it and kills them

• Insects bite it and die from poison

• Insects fall in it and the plant closes and eats them

• The liquid in it acts as a glue and insects cannot escape