AP BIOLOGY

Detailed explanation-1: -Woody Perennials: The plants that survive through consecutive growing years with a persistent woody stem (primary or secondary growth) are known as woody perennials. Examples: maple, pine and apple.

Detailed explanation-2: -Gymnosperms are mainly conifers, such as pine and fir trees. They produce both male and female cones.

Detailed explanation-3: -These two stages are the multicellular, haploid gametophyte and the multicellular diploid sporophyte. This is very different from most types of animal reproduction where there is only one multicellular stage: a diploid organism which produces single-celled haploid gametes.

Detailed explanation-4: -Around 90% of flowering plants (angiosperms) rely on animals such as bees to help them pollinate; when the insect transports pollen between flowers, it receives a reward (nectar etc.). It is known that mutualisms with pollinators also play a significant role in flower shape diversity.

Detailed explanation-5: -Flowers are an important means of attracting pollen substances to plants, and plants need to produce seeds, the reproductive structures that allow seeds to exist for generations. Flowers can also protect growing seeds and successfully pass genetic material to the next generation.