100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
IB ESS test with answers $7.49   Add to cart

Exam (elaborations)

IB ESS test with answers

 38 views  0 purchase
  • Course
  • Institution

IB ESS test based on past papers with anwers. ecosystems unit

Preview 2 out of 12  pages

  • February 21, 2021
  • 12
  • 2020/2021
  • Exam (elaborations)
  • Questions & answers
  • Secondary school
  • 4
avatar-seller
GRADE: /50 A
IB:5
Ecosystems I-Assessment


Multiple Choice Questions (1 mark each)



1. What is the name given to a group of organisms that can interbreed and produce
fertile offspring?

A. Ecosystem

B. Species

C. Community

D. Niche



2. Which of the following determines the trophic level of an organism?

A. The position of the organism in a food chain

B. The number of organisms present in a food chain

C. The number of different species present in a food web

D. The rate at which the organism converts solar energy into chemical energy



3. When animals eat other animals, they could be

A. primary consumers.

B. secondary consumers.

C. producers.

D. herbivores.

, 4. Which of the following is the best definition of a community?

A.A group of organisms of the same species living in the same area at the same time
and capable of interbreeding.

B. The environment in which a species normally lives.

C. A group of populations living and interacting with each other in a common habitat.

D. A group of organisms that interbreed and produce fertile offspring.


5. Which process lowers the level of CO2 in the atmosphere?

A. Volcanic eruption

B. Combustion

C. Photosynthesis

D. Respiration



6. In an area of grassland, a sudden severe frost reduces the population of butterflies.
Of what is this frost an example?

A. A density-dependent factor

B. Biological competition

C. Predation

D. A density-independent factor



7. Which is the main reservoir of nitrogen?

A. The atmosphere

B. Forests

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller sofiameller. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $7.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

74735 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$7.49
  • (0)
  Add to cart