An ecosystem is: A. Only animals B. Only plants C. Living and non-living things interacting D. Only water bodies

Question on producers: Producers are organisms that make their own food using sunlight.

A. Only plants

Question on consumers: Consumers depend on producers or other consumers for food.

A. Only animals

Question on omnivores: Omnivores eat both plants and animals.

C. Plants and animals

Question on birds: All birds eat other organisms for food, so they are consumers.

D. All birds (consumers)

Microorganisms that break down dead matter are:

Decomposers return nutrients to the soil by breaking down dead organisms.

D. Decomposers

Step 1: Question 10 - Which of the following is a non-living thing?

Tree, dog, and human show characteristics of life (growth, reproduction, response). Water does not.

C. Water

Step 2: Question 2 - Match the Columns

2.1 Glucose is produced by plants during photosynthesis, so it is plant food.

2.1 Glucose → B. Plant food

2.2 Proteins are used by animals to build and repair muscles and tissues.

2.2 Proteins → A. Build muscles

2.3 Fats are stored in the body for long-term energy.

2.3 Fats → C. Store energy

Final matches:

&2.1 \quad Glucose && \to && B. Plant food \\ &2.2 \quad Proteins && \to && A. Build muscles \\ &2.3