PBIO

Some of the oldest agricultural sites are located in which area of the world? A.Hawaiian archipelago B.The Fertile Crescent C.Alaskan wilderness D.Australian outback E.All of these correct answer: B.The Fertile Crescent Plants have been slowly domesticated to suit human needs over the past 10,000 years by which method? A.Natural selection B.Artificial selection C.Wild foraging D.Biotechnology correct answer: B.Artificial selection Which of the following might serve as evidence o...

State the estimates of diversity in the U.S. and Canada and in Mexico and explain what is meant by biodiversity hotspots correct answer: Encompasses 15% of the planet's total land area -Biodiversity hotspots: specific areas around the globe with particularly high concentrations of species that have experienced habitat loss Describe how human activities have led to losses of biodiversity and identify the leading contributor correct answer: Human settlement and farming have led to destructi...

Some conservation efforts to protect endangered plant species from extinction have been successful. A. True B. False correct answer: A. True 2. Declines in biodiversity are caused by... A. invasive species B. over-exploitation C. agricultural development D. all of these correct answer: D. All of these 3. With ex situ conservation practices, where are plant species preserved? A. outside their native area B. within their native area C. both D. neither correct answer: A. outsid...

Plants have been slowly domesticated to suit human needs over the past 10,000 years by which method? correct answer: Artificial selection A non shattering head leads to what? correct answer: Loss of natural seed dispersal Which of the following might serve as evidence of ancient farming practices? correct answer: All of these The earliest domesticated crop from the Near East (Fertile Crescent) is thought to be correct answer: Barley What do squash, avocado, chili peppers, corn, g...

True-breeding lines of peas producing round peas (RR) are crossed with those with wrinkled peas (rr). The round allele is dominant. Offspring in the first (F1) generation _______. correct answer: all produce round peas (Rr) You are studying the same locus described in question 1. If you cross a heterozygous mom (Rr) with a heterozygous dad (Rr) and round is dominant, then offspring in the next generation would ___. correct answer: have 3 round : 1 wrinkled pods (25% homozygous recessive) ...

Palynology correct answer: study of pollen Horticulture Therapy correct answer: Employs plants and gardening activities on therapeutic and rehabilitation activities and could be utilized to improve the quality of life of the worldwide aging population. Transgenic correct answer: term used to refer to an organism that contains genes from other organisms dioecious plants correct answer: have male and female reproductive structures on different plants Monoecious plants correct answe...

why are plants important? correct answer: -plants produce most of the oxygen we breathe -plants produce most of the chemically stored energy we consumer as food and burn for fuel -plants are an excellent model organisms for basic science which of the following statements is NOT correct? correct answer: -plants have chitin-rich cell walls viruses were first discovered correct answer: in mosaic disease of tobacco leaves not all plants are _________; non plants, such as algae, are ___...

Some conservation efforts to protect endangered plant species from extinction have been successful. correct answer: True Declines in biodiversity are caused by... correct answer: all of these (invasive species over-exploitation agricultural development) With ex situ conservation practices, where are plant species preserved? correct answer: outside their native area Areas with high concentrations of species that are native only to that area (endemic) but where much of the habitat ...

Some of the oldest agricultural sites are located in which area of the world? correct answer: The Fertile Crescent Plants have been slowly domesticated to suit human needs over the past 10,000 years by which method? correct answer: artificial selection Which of the following might serve as evidence of ancient farming practices? correct answer: Grain processing tools Soil mounding and channels Terraces Pollen and phytolith microfossils The earliest domesticated crop from the Near ...

Some of the oldest agricultural sites are located in which area of the world? correct answer: The Fertile Crescent Plants have been slowly domesticated to suit human needs over the past 10,000 years by which method?` correct answer: Article Selection Which of the following might serve as evidence of ancient farming practices? correct answer: Grain processing tools soil mounding channels terraces pollen and phytolith microfossils whats corn a unique cereal grain correct answe...