Textbook QuestionCompare a seed plant with an alga in terms of adaptations for life on land versus life in the water.726views
Textbook QuestionYou have been hired as a field assistant for a researcher interested in the evolution of flower characteristics in orchids. Design an experiment to determine whether color, size, shape, scent, or amount of nectar is the most important factor in attracting pollinators to a particular species. Assume that you can change any flower's color with a dye and that you can remove petals or nectar stores, add particular scents, add nectar by injection, or switch parts among species by cutting and gluing.680views
Textbook QuestionWhich of the following are present in angiosperms but not in gymnosperms?A. seedsB. pollenC. ovariesD. ovules250views
Multiple ChoiceSeed plants reproduce using pollen, which develops into sperm cells. Which of the following structures is responsible for carrying the male gametes in seed plants?44views
Multiple ChoiceWhat is the term for a plant that produces seeds enclosed within a protective covering?24views
Multiple ChoiceSeed plants are vascular plants that use seeds during the ______ stage of their life cycles.33views