Plant roots typically grow downwards, towards the center of the Earth, in response to gravity. This is known as gravitropism. Roots grow downward to anchor the plant in the soil and to search for water and nutrients. The growth direction ...

Plant roots typically grow downwards, towards the center of the Earth, in response to gravity. This is known as gravitropism. Roots grow downward to anchor the plant in the soil and to search for water and nutrients. The growth direction ...

Seeds need water to germinate because water activates the enzymes inside the seed that help start the growth process. It softens the seed coat, allowing the seed to swell and crack open. Water also helps transport nutrients inside the seed, ...

For seed germination, three main conditions are necessary: water, warmth, and air (oxygen). Water is absorbed by the seed, activating the enzymes that start the growth process. Warmth helps the seed to metabolize and grow, while oxygen is needed for ...

A seed is considered living because it has the potential to grow into a new plant. It contains all the necessary parts like the embryo, stored food, and a protective coat that allow it to germinate under the right conditions. ...

When a living being loses all its vital functions, such as respiration, movement, growth, and reproduction, it is considered dead. The body stops carrying out essential processes needed to stay alive. Once all the vital functions cease, the organism cannot ...

Reproduction is the process by which living beings produce offspring to continue their species. It is an essential characteristic of living organisms. There are two types of reproduction: sexual reproduction, where two parents are involved, and asexual reproduction, where only ...

An example of a plant responding to a stimulus is phototropism. When a plant is exposed to light, it grows towards the light source. This is because the cells on the shaded side of the plant elongate, causing the plant ...

A stimulus is any change or event that triggers a response in living beings. It can be something external, like light or sound, or internal, like hunger or pain. When an organism detects a stimulus, it reacts in some way. ...

Excretion is important for living beings because it helps remove waste products from the body. These waste products, like carbon dioxide and urea, can be harmful if they build up. Excretion helps maintain the body’s balance and ensures that cells ...