In grass seedlings, auxin serves as a messenger from the photoreceptor in the tip of the coleoptile to the growth region of the coleoptile. Chapter 36 Plant Reproduction Angiosperms are flowering plants that utilize the flowers as their sexual reproduction organs. Chapter 39 Animal Reproduction Asexual reproduction is very common in the animal kingdom. Some animals reproduce asexually either all of the time or some of the time. Mammalian Reproduction involves internal sexual reproduction.
Humans provide familiar models to study the mammalian processes.
Chapter 40 Animal Development Animal development involves many processes beginning with fertilization and continuing throughout the life of the organism.