7th Grade

Ecosystems are not static, they are complex, diverse and change according to natural dynamics and the intervention of human beings in them.

Each ecosystem is made up of:

• Biotic factors, Ecosistems, Humans, animals

• Habitat, Ecological niche, Ecosistems.

• Biotic factors, Abiotic factors, Habitat, Ecological niche.

What kind of consumer is zooplankton?

• Primary consumers.

• Secondary consumers

• Decomposing organisms

Name the Aquatic ecosystems with their examples.

Some of the functions that are related to the fundamental aspects in ecosystems are:

• Regulation functions, Maintenance functions.

• Functionsconservation, Functions production.

• Recycling functions.

• All the above are correct.

There are different types of academic disciplines that allow a more complete study of the different ecosystems, such as:

Geology, Climatology, Soil Science, Environmental Sciences, Biology.

Pick one of these sciences and explain it clearly.

Formulates a hypothesis about how the marine food web would be if a secondary consumer disappears

According to the degree of impact on the environment, human activity can be classified as follows:

• Low impact, Medium impact, High impact.

• Hunting, fishing, fruit gathering

• LIvestock, mining, monocultures.

Name the ten great biomes of the planet:

(you can write them in spanish)

What are lentic ecosystems?

Give two examples of lotic ecosystems