PBIO Exam 2023 with 100% correct answers

Palynology and Benefits from this correct answersPalynology: the study of pollen. Benefits: determines when agriculture originated in certain areas and who consumed it, helps solves criminal cases, meaning to native americans Pollination and Types of animals involved correct answersPollination: the transfer of pollen from anther to stigma Types of animals: Bees, wasps, flies, ants, butterflies, moths, birds, bats Plant strategies that attract pollinators. Animals necessary? correct answersColor and scent attract animals to pollen. Animals arent necessary but very helpful in pollenation Double fertilization in fruit and seed production, asexual or sexual? correct answersDouble fertilization: a complex fertilization mechanism of flowering plants (angiosperms). This process involves the joining of a female gametophyte (megagametophyte, also called the embryo sac) with two male gametes (sperm). Sexual repoduction Explain the importance to human cultures of endosperm development in angiosperms correct answersThe nutritive value of wheat, rice, and corn, the worlds major crops, is due to the large endosperm in these grains Interpret how human activities may affect pollinator activity, and ultimately plant growth. correct answersHuman activity, has put a large pressure on pollinators by both increasing their demand and removing their habitat. Name 4 ways that fruits and seeds are dispersed and give a specific example for each correct answersDispersal by wind: the samara of a maple tree has a curved wing that causes the fruit to spin as it is released from the tree. Dispersal by animals: shore birds can carry seeds with their feet. Dispersal by water: sedges have seeds surrounded by inflated sacs that allow the seeds to float