OBJECTIVE FORESTRY

Detailed explanation-1: -Plants grow towards or away from the light, the type of tropism in the response to light is called phototropism. Sunflower grow in accordance to sun is an example of positive phototropism.

Detailed explanation-2: -Tropisms are widely studied biological phenomena that involve the growth of an organism in response to environmental stimuli. Phototropism is the growth and development of plants in response to light. Heliotropism, a specific form of phototropism, describes growth in response to the sun.

Detailed explanation-3: -The movement of a sunflower occurs according to the direction of sunlight. This type of growth movement is called phototropism. The growth increases in the shoots of the sunflower that is away from sunlight, causing the plant to bend towards the sun’s direction.

Detailed explanation-4: -During the day, the stem’s east side grows, resulting in a swaying motion to the west with the sun. As the sunflower matures, that overall growth starts to slow down. Essentially, the older plants settle on facing east as it reacts more strongly to light early in the day than later on, so it gradually stops moving.

Detailed explanation-5: -The correct answer is phototropism. Phototropism is a directed response in plants that permits them to grow towards, or away from, a light source. The modulation of physiology or development in relation to day length is known as photoperiodism.