The Arizona Desert
Different Ecosystems
Weather
Climate
100

What do we mean with the word "adaptations"?

Features of organisms that help them to live and reproduce in their habitat

100

In which climatic area can you find Mangrove forests?

Tropical areas/countries.

100

What is the study of weather?

Meterology.

100

Currently, which parts of the world are permanently covered in ice sheets?

North and South Pole.

200

What is the difference between nectar and pollen?

Nectar= a sugary liquid made by flowers to attract insects for pollination
Pollen: tiny grains made by flowers, which contain male gametes

200
What happens to the sea water in the Arctic Ocean during winter?

It freezes.

200

What is the difference between weather and climate?

Weather: The atmospheric conditions in a particular place: sunny, rainy, frosty.

Climate: the weather conditions in an area over a long period of time.

200

Identify and describe the current climate period.

Today we are living in an interglacial period, which means the permanent ice sheets are slowly melting and are predominantly located close to the North and South Pole.

300

True or False: Organisms interact also with non-living things.

TRUE.

300
Describe a form of interaction in one of the different ecosystems you studied.

Example: light passes through the ice to allow tiny algae to grow and feed the tiny shrimp-like organism. Fish eat these organisms -> seals hunt for fish in the water - > polar bears hunt seals 

300

What is weather affected by?

Weather is affected by factors such as temperature, humidity, cloudiness and precipitation.

300
On p. 174 of your book, there's a picture of two big rocks found in Yosemite National Park. What explanations did scientists give as to how those big boulders reached that area?

It is presumed that the boulders were carried there by ancient glaciers, which are rivers of ice that move slowly downhill. When the glacier melted, the rocks were left behind.

400

What is an ecosystem? Use the scientific definition.

A network of interactions between all the living organisms and the non-living things around them.

400

What is an essential condition for rice paddies to become a fertile ecosystem?

They must be flooded. Water allows algae to grow and different aquatic species to breed.
400

Describe a tropical climate zone.

How and wet all year.

400

How do scientists extract cores of soil?

Using an auger to extract the peat bog.

500

In a food web, what is the role of plants?

They are producers. They use energy in sunlight to make food. (As animals eat the desert plants and each other, the energy is passed through the desert food web)

500

What is the difference between bioaccumulation and biomagnification?

Bioaccumulation: gradual increase of a substance in an organism's body; it happens when the substance cannot be broken down inside the body cells.

Biomagnification: Increase of the concentration of a substance as you go up a food chain.

500

Identify two areas in the world with mediterranean climate (excluding the areas surrounding the Mediterranean Sea)

California, South Africa.

500

Explain why peat bogs are important for science.

Peat bogs provide essential information on plants that lived thousands of years ago and those that were affected by climatic changes.