1. Life appeared on Earth at the same time the planet was formed. This sentence is:

False True

2. How many levels of biodiversity we can observe in our planet?

Only 1 – number of species 3 biodiversity levels: genetic, species and ecological diversity 2 biodiversity levels: number of animals and plants

3. Biodiversity is different across the planet because: (Select the most correct option)

The continents are separated by bodies of water, like oceans and seas. Planet geology is also across the planet, and therefore also biodiversity. It’s dinosaur’s fault! Abiotic factors are not the same across the planet, such as rain and temperatures, average number of sunlight hours.

4. Sunlight is the main energy source of ecosystems or habitats across the planet because:

It keeps us warm! We can work outside during the day Plants and other lifeforms grow using sunlight. Cats and dogs like it!

5. Not every species has the same ecological role on their habitat or ecosystem. Please select the true sentences (be careful, maybe there are more than 1 correct sentence)?

Mushrooms are the main earth producers. Predators eat plants. Plants are normally the main producers of ecosystems and habitats. Herbivores eat the producers, normally plants.

6. Overall ecosystems provide services to human populations such as: (be careful, maybe there are more than 1 answer)?

Food Raw materials such as wood A danger to humans! There are monster plants everywhere! Good air quality They don’t provide anything to us  Medicins Water purification

7. Global economy impacts negatively in various ways, such as climate change, pollution and overexploitation.

True False

8. A specie is more prone to extinction (disappear) when: (be careful, maybe there are more than 1 answer)?

Its populations are growing There are several populations of the specie with a stable size Its populations are decreasing rapidly Has only 1 population on a small area

9. An ecosystem can be more resistant and resilient to negative pressures when:

They have a few numbers of species They have a dominant specie and a high number of non-dominant specie They have a good specie’s structure with several species’ pf producers, consumers and decomposers. They have 2 species.

10. The EU has a Nature Conservation Network to help to protect European biodiversity. The name of the network is:

Birds and Trees Natura 2000 Mars 2050 EU Life