AP BIOLOGY

Detailed explanation-1: -The flower contains colorful petals and a scent that attracts pollinators. It also contains male and female parts that help produce pollen and eggs. Seeds: Angiosperms produce seeds that will germinate and grow into new plants.

Detailed explanation-2: -Generally, flowering in paddy rice occurs by anther extrusion between the opening and closing of the spikelet. Active flowering generally lasts for 1–2.5 h daily during the reproductive phase, and it is very sensitive to external environmental factors such as temperature, solar radiation, etc.

Detailed explanation-3: -They are distinguished from gymnosperms by characteristics including flowers, endosperm within their seeds, and the production of fruits that contain the seeds.

Detailed explanation-4: -When the veins run parallel to each other it is parallel venation. Banana, coconut, wheat, maize, and most monocotyledons have parallel venation.