Science Olympiad Ecology

Which of the following best describes a niche in an ecosystem?

• The physical space an organism occupies

• The role an organism plays in its environment

• The food an organism eats

• The lifespan of an organism

Match the following.

• Cacti, snakes, vultures

• Ecosystem

• A group of vultures

• Biome

• Sand, cacti, rock, heat, snake, vultures

• Population

• Desert

• Organism

• A single cactus

• Community

Tags

NGSS.MS-LS2-4

The organisms shown below live in or near bodies of water. Some are classified as vertebrates and some as invertebrates. Which organism is classified as an invertebrate?

• crab

• fish

• manatee

• turtle

Tags

NGSS.MS-LS4-2

Plants are classified according to their structures. The plant pictured below reproduces without seeds and has simple tubes for transporting water. In which group of plants would this plant be classified?

• spore-producing plants with many leaves

• plants that produce fruit on their leaves

• plants that produce fruit on their leaves

• flowering plants with many leaves

Tags

NGSS.MS-LS3-2

What is the role of decomposers in an ecosystem?

• They produce oxygen

• They consume living plants

• They break down dead material and waste

• They control the population of species

Tags

NGSS.MS-LS2-3

What role do producers play in an ecosystem?

• They consume other organisms for energy

• They decompose dead organisms

• They produce oxygen through photosynthesis

• They provide energy for other organisms through photosynthesis

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In an ecosystem, which component is considered a primary producer?

• Carnivores

• Herbivores

• Plants

• Decomposers

What is an ecosystem?

• A single species and its natural habitat

• A community of living organisms and their physical environment

• A collection of planets

• A type of animal

What is biodiversity?

• The pollution in ecosystems

• The variety of life in a particular habitat or ecosystem

• The number of trees in a forest

• The amount of water in an ocean

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-5

NGSS.MS-LS4-4

Which of the following is a biotic factor in an ecosystem?

• Water

• Sunlight

• Plants

• Rocks