The meristem in grasses is at the base of the stem (rather than the apex). This positioning of the meristem is an adaptation for selective pressures imposed by:
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The meristem in grasses is at the base of the stem (rather than the apex). This positioning of the meristem is an adaptation for selective pressures imposed by:
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- Some plants have adapted to modify some of their organs to perform atypical tasks. An example of a modified leaf is a _______. storage root taproot runner tendril tuberStomata are pores on the surface of plant leaves that allow for gaseous exchange. The numbers below shows the density of stomata on the leaf surfaces of three species of plants. Based on this information, which statement is incorrect? Stomata Density: Elodea (upper epidermis) = 0, (lower epidermis) = 0, Water Lily (upper) = 420, (lower) = 0, Black Walnut (upper) = 0, (lower) = 465 a) Since Elodea does not have any stomata, it does not carry out photosynthesis. b) In Elodea’s aquatic environment, stomata are not used to control gas exchange. c) Since black walnut trees thrive on land, stomata are located on lower surface to decrease the amount of water lost in the heat of the sun. d) Since water lilies live on the surface of water, transpiration occurs from the upper epidermis because that is where it is in contact with air.The figure below shows the degree of stomatal opening in three plant species during the course of a single 24-hour day. Comparing Species A and Species B in the figure above, which statement below is correct? Species A and Species B are similar at preventing water lost by transpiration Species A is better at preventing water lost by transpiration Species B is better at preventing water lost by transpiration
- The ability of a sunflower plant to become taller is directly due to its a. apical meristem. c. mesophyll cells. b. lateral meristems. d. taproot system.From the option given below which of the following is not an adaption that helps plantsresist gravity and dry conditions on land?1. xylem2. lignin3. cuticle4. photosynthesisList stages that can be identified in the life of growing grasses
- The enormous flower stalks of an Agave plant represent which of the following? Agaves are semelparous. Group of answer choices -high investment in organismal growth -A very high investment in reproduction and none in maintenance of the organism -High investment in both reproduction and maintenance of the organism -low investment in reproduction and high investment in maintenance of the organismMark the incorrect statement a.Plants show open form of growth b.Plants have self perpetuating cells throughout the life c.Inplants meristems are present only at root and shoot tips d.Cells found next to meristematic zone also show growththis meristematic area produces the primary xylem and primary phloem a. procambium b. ground meristem c. protoderm d. pith
- Newly-formed root cells begin to form different cell types in the ________. a. zone of elongation b. zone of maturation c. root meristem d. zone of cell divisionDirections: Define the following terms below. Write the description below. Shoot system:What is meant by modification of root? What type of modification of root is found in the:(a) Banyan tree (b) Turnip (c) Mangrove trees