Chloroplasts contain chlorophyll, which captures light energy and uses it to convert carbon dioxide and water into glucose during photosynthesis. This process is unique to plant cells.
A gene is the basic unit of heredity, responsible for encoding the information needed to produce proteins. Genes are found on chromosomes and determine traits passed from parents to offspring.
The circulatory system includes the heart, blood vessels, and blood, and its primary function is to transport oxygen, nutrients, hormones, and waste products to and from the body's cells.
Natural selection is the process by which organisms with traits better suited to their environment are more likely to survive and reproduce, passing those traits to future generations. Over time, this leads to evolutionary changes in populations.
Producers are organisms that make their own food through photosynthesis, such as plants. Grass, like other plants, uses sunlight to produce energy, making it a producer in the ecosystem.
