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  1. Problems
  2. /Ecology and Environment
  3. /Ecosystems and Food Chains

Ecosystems and Food Chains

Biology
+ Upload a Problem
More in Ecology and EnvironmentEcosystems and Food ChainsCycles in NaturePollution and ConservationNatural ResourcesOrganisms and PopulationsBiodiversity and Conservation
10 problems
Exam:
Type:
1.
A pesticide washes into a lake from nearby farms… New
High School (9–10), General · Ecosystems and Food ChainsStemPy LabStemPy Lab
Hard
2.
Kiran says a food chain could easily have six or seven levels if the top animals were small… New
High School (9–10), General · Ecosystems and Food ChainsStemPy LabStemPy Lab
Medium
3.
A field of wheat stores 500 000 kJ of food energy… New
High School (9–10), General · Ecosystems and Food ChainsStemPy LabStemPy Lab
Hard
4.
In a sea food chain, phytoplankton store 20 000 kJ of energy… New
High School (9–10), General · Ecosystems and Food ChainsStemPy LabStemPy Lab
Easy
5.
A meadow has 3000 plants. Each hare needs 30 plants to live, and each wolf needs 20 hares… New
High School (9–10), General · Ecosystems and Food ChainsStemPy LabStemPy Lab
Medium
6.
In a paddy field, frogs eat insects that feed on rice, and snakes eat the frogs… New
High School (9–10), General · Ecosystems and Food ChainsStemPy LabStemPy Lab
Medium
7.
Arrange these into a food chain and give the trophic level of each: snake, grass, eagle… New
High School (9–10), General · Ecosystems and Food ChainsStemPy LabStemPy Lab
Easy
8.
Priya leaves 50 kg of grass clippings on a corner of her lawn… New
High School (9–10), General · Ecosystems and Food ChainsStemPy LabStemPy Lab
Medium
9.
Sort these parts of a pond into abiotic components, producers, consumers and decomposers: water… New
High School (9–10), General · Ecosystems and Food ChainsStemPy LabStemPy Lab
Easy
10.
Rohan keeps fish in a glass aquarium and has to clean it every week… New
High School (9–10), General · Ecosystems and Food ChainsStemPy LabStemPy Lab
Easy