Grade 6 Science

What is an ecosystem?

• A community of living organisms in conjunction with the nonliving components of their environment.

• A type of computer software

• A type of musical instrument

• A mathematical equation

What is a food chain?

• A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

• A food chain is a process where organisms produce their own food through photosynthesis.

• A food chain is a circular sequence of organisms where each organism eats the one before it.

• A food chain is a sequence of organisms that do not rely on each other for nutrients and energy.

What is a habitat?

• A habitat is a type of food that organisms consume.

• A habitat is the natural environment or home of an organism.

• A habitat is a man-made structure for organisms.

• A habitat is a term used to describe the behavior of organisms.

What are adaptations?

• Changes that organisms undergo to survive and reproduce in a different environment.

• Changes that organisms undergo to have no effect on their survival and reproduction in their environment.

• Changes that organisms undergo to worsen their survival and reproduction in their environment.

• Changes that organisms undergo to better survive and reproduce in their environment.

What is pollution?

• A natural process that benefits the environment

• Excessive cleanliness in the environment

• Presence of harmful substances in the environment

• Absence of harmful substances in the environment

Explain the concept of energy flow in a food chain.

• Energy flow in a food chain is the transfer of energy from one organism to another through the process of photosynthesis.

• Energy flow in a food chain is the transfer of energy from one organism to another through the process of respiration.

• Energy flow in a food chain is the transfer of energy from one organism to another through the process of reproduction.

• Energy flow in a food chain is the transfer of energy from one organism to another through the consumption of food.

What are some examples of animal adaptations?

• Flight, echolocation, and web-spinning

• Photosynthesis, respiration, and reproduction

• Running speed, jumping ability, and color vision

• Camouflage, hibernation, migration, and the ability to store water

How does pollution affect ecosystems?

• Pollution helps to maintain the balance in ecosystems.

• Pollution only affects a small number of organisms in ecosystems.

• Pollution affects ecosystems by disrupting the balance and harming organisms.

• Pollution has no effect on ecosystems.

What is the role of decomposers in an ecosystem?

• Decomposers break down dead organisms and waste materials, recycling nutrients back into the ecosystem.

• Decomposers consume other organisms for energy.

• Decomposers produce their own food through photosynthesis.

• Decomposers do not play a role in the ecosystem.

What is the impact of deforestation on habitats?

• Deforestation has no impact on habitats.

• Deforestation increases the number of habitats.

• Deforestation decreases the number of habitats, leading to loss of biodiversity.

• Deforestation changes the type of food that organisms consume.