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Twelfth Grade (Grade 12) Botany Questions

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Grade 12 Botany
All plants producing uncovered seeds, such as the conifers, are considered
  1. bryophytes.
  2. angiosperms.
  3. gymnosperms.
  4. monerans.
Grade 12 Botany
Grade 12 Botany
What are the two divisions of plant organs?
  1. stem and leaves
  2. muscle and nerve
  3. vegetative and reproductive
  4. digestive and photosynthetic
Grade 12 Botany
Grade 12 Botany
What structure do ferns use for reproduction?
  1. seed
  2. microphyll
  3. megaphyll
  4. spore
Grade 12 Botany
What are the four elements found in the highest concentrations within plants?
  1. phosphorus, calcium, zinc, carbon
  2. carbon, hydrogen, oxygen, nitrogen
  3. magnesium, sulfur, oxygen, potassium
  4. iron, lead, nitrogen, hydrogen
Grade 12 Botany
Dicotyledons are plants with
  1. one seed leaf.
  2. two seed leaves.
  3. three seed leaves.
  4. rounded leaves.
Grade 12 Botany
Which of these describes plants?
  1. heterotrophs
  2. autotrophic eukaryotes
  3. bacteria
  4. microorganisms
Grade 12 Botany
Which adaptation did plants need to survive on land?
  1. waxy cuticle
  2. carbohydrate energy-storage molecule
  3. diploid form that produces haploid gametes
  4. way for water to be transported around the body
Grade 12 Botany
Which statement about mycorrhizae is true?
  1. They spread by way of plant seeds.
  2. They form structures that do not need oxygen.
  3. They increase the surface area of the roots.
  4. They are found only in tropical species of plants.
Grade 12 Botany
The dominant vegetation on Earth has changed over the past 400 to 500 million years. Which list shows the major groups in the correct order from oldest to most recent?
  1. gymnosperms, progymnosperms, angiosperms
  2. angiosperms, gymnosperms, progymnosperms
  3. progymnosperms, angiosperms, gymnosperms
  4. progymnosperms, gymnosperms, angiosperms
Grade 12 Botany
What stage of the fern life cycle is readily visible to the naked eye?
  1. sporophyte stage
  2. gametophyte stage
  3. haploid stage
  4. embryophyte stage
Grade 12 Botany
The vascular cambium is the meristematic tissue located between the
  1. roots and stem.
  2. cambium and phloem.
  3. xylem and phloem.
  4. node and internode.
Grade 12 Botany
What is an advantage of using inorganic fertilizers when growing plants?
  1. They improve the physical properties of the soil.
  2. They can be taken in almost immediately by the roots.
  3. They are of higher quality than organic fertilizers.
  4. They contain minerals that are in their proper ionic form.
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