Answered: which of teh following is not a stem…

which of teh following is not a stem adaptaion a. peeling bark b. twining stems c. hollow stems d. green fleshy stems e. spiny stems

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter28: Plant Nutrition And Transport

Section: Chapter Questions

Problem 12SQ

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Whos the Pollinator? Massonia depressa is a low-growing succulent plant native to the desert of South Africa. The dull-colored flowers of this monocot develop at ground level, have tiny petals, emit a yeasty aroma, and produce a thick. jellylike nectar. These features led researchers to suspect that desert rodents such as gerbils pollinate this plant. To test their hypothesis, the researchers trapped rodents in areas where M. depressa grows and checked them for pollen. They also put some plants in wire cages that excluded mammals, but not insects, to see whether fruits and seeds would form in the absence of rodents. The results are shown in FIGURE 29.20. A The dull, petalless, ground-level flowers of Massonia depressa are accessible to rodents, who push their heads through the stamens to reach the nectar at the bottom of floral cups. Note the pollen on the gerbils snout. Type of rodent Number caught # With pollen on snout # with pollen in feces Namaqua rock rat A 3 2 Cape spiny mouse 3 2 2 Hairy-footed gerbil A 2 A Cape short-eared gerbil 1 0 1 African pygmy mouse 1 0 0 B Evidence of Visits to M. depressa by rodents. Mammals allowed Mammals excluded access to plants from plants Percent of plants that set fruit 30.4 4.3 Average number of fruits par plant 1.39 0.47 Average number of seeds per plant 20.0 1.95 C Fruit and seed production of M. depressa with and without visits by mammals. Mammals are excluded from plants by wire cages with openings large enough for insects to pass through. Twenty-three plants were tested in each group. FIGURE 29.20 Testing pollination of M. depressa by rodents. 1. How many of the 13 captured rodents showed some evidence of pollen from M. depressa?
Whos the Pollinator? Massonia depressa is a low-growing succulent plant native to the desert of South Africa. The dull-colored flowers of this monocot develop at ground level, have tiny petals, emit a yeasty aroma, and produce a thick. jellylike nectar. These features led researchers to suspect that desert rodents such as gerbils pollinate this plant. To test their hypothesis, the researchers trapped rodents in areas where M. depressa grows and checked them for pollen. They also put some plants in wire cages that excluded mammals, but not insects, to see whether fruits and seeds would form in the absence of rodents. The results are shown in FIGURE 29.20. A The dull, petalless, ground-level flowers of Massonia depressa are accessible to rodents, who push their heads through the stamens to reach the nectar at the bottom of floral cups. Note the pollen on the gerbils snout. Type of rodent Number caught # With pollen on snout # with pollen in feces Namaqua rock rat A 3 2 Cape spiny mouse 3 2 2 Hairy-footed gerbil A 2 A Cape short-eared gerbil 1 0 1 African pygmy mouse 1 0 0 B Evidence of Visits to M. depressa by rodents. Mammals allowed Mammals excluded access to plants from plants Percent of plants that set fruit 30.4 4.3 Average number of fruits par plant 1.39 0.47 Average number of seeds per plant 20.0 1.95 C Fruit and seed production of M. depressa with and without visits by mammals. Mammals are excluded from plants by wire cages with openings large enough for insects to pass through. Twenty-three plants were tested in each group. FIGURE 29.20 Testing pollination of M. depressa by rodents. 2. Would this evidence alone be sufficient to conclude that rodents are the main pollinators for this plant?
Whos the Pollinator? Massonia depressa is a low-growing succulent plant native to the desert of South Africa. The dull-colored flowers of this monocot develop at ground level, have tiny petals, emit a yeasty aroma, and produce a thick. jellylike nectar. These features led researchers to suspect that desert rodents such as gerbils pollinate this plant. To test their hypothesis, the researchers trapped rodents in areas where M. depressa grows and checked them for pollen. They also put some plants in wire cages that excluded mammals, but not insects, to see whether fruits and seeds would form in the absence of rodents. The results are shown in FIGURE 29.20. A The dull, petalless, ground-level flowers of Massonia depressa are accessible to rodents, who push their heads through the stamens to reach the nectar at the bottom of floral cups. Note the pollen on the gerbils snout. Type of rodent Number caught # With pollen on snout # with pollen in feces Namaqua rock rat A 3 2 Cape spiny mouse 3 2 2 Hairy-footed gerbil A 2 A Cape short-eared gerbil 1 0 1 African pygmy mouse 1 0 0 B Evidence of Visits to M. depressa by rodents. Mammals allowed Mammals excluded access to plants from plants Percent of plants that set fruit 30.4 4.3 Average number of fruits par plant 1.39 0.47 Average number of seeds per plant 20.0 1.95 C Fruit and seed production of M. depressa with and without visits by mammals. Mammals are excluded from plants by wire cages with openings large enough for insects to pass through. Twenty-three plants were tested in each group. FIGURE 29.20 Testing pollination of M. depressa by rodents. 3. How did the average number of seeds produced by caged plants compare with that of control plants?
Whos the Pollinator? Massonia depressa is a low-growing succulent plant native to the desert of South Africa. The dull-colored flowers of this monocot develop at ground level, have tiny petals, emit a yeasty aroma, and produce a thick. jellylike nectar. These features led researchers to suspect that desert rodents such as gerbils pollinate this plant. To test their hypothesis, the researchers trapped rodents in areas where M. depressa grows and checked them for pollen. They also put some plants in wire cages that excluded mammals, but not insects, to see whether fruits and seeds would form in the absence of rodents. The results are shown in FIGURE 29.20. A The dull, petalless, ground-level flowers of Massonia depressa are accessible to rodents, who push their heads through the stamens to reach the nectar at the bottom of floral cups. Note the pollen on the gerbils snout. Type of rodent Number caught # With pollen on snout # with pollen in feces Namaqua rock rat A 3 2 Cape spiny mouse 3 2 2 Hairy-footed gerbil A 2 A Cape short-eared gerbil 1 0 1 African pygmy mouse 1 0 0 B Evidence of Visits to M. depressa by rodents. Mammals allowed Mammals excluded access to plants from plants Percent of plants that set fruit 30.4 4.3 Average number of fruits par plant 1.39 0.47 Average number of seeds per plant 20.0 1.95 C Fruit and seed production of M. depressa with and without visits by mammals. Mammals are excluded from plants by wire cages with openings large enough for insects to pass through. Twenty-three plants were tested in each group. FIGURE 29.20 Testing pollination of M. depressa by rodents. 4. Do these data support the hypothesis that rodents are required for pollination of M. depressa? Why or why not?
Whos the Pollinator? Massonia depressa is a low-growing succulent plant native to the desert of South Africa. The dull-colored flowers of this monocot develop at ground level, have tiny petals, emit a yeasty aroma, and produce a thick, jellylike nectar. These trails led researchers to suspect that desert rodents such as gerbils pollinate this plant. The researchers trapped rodents in areas where M. depressa grows and checked them for pollen (FIGURE 29.7A,B). They also put some plants in wire cages that excluded mammals, but not insects, to see whether fruits and seeds would form in the absence of rodents (FIGURE 29.7C). A The dull petalless, ground-level flower of Massonia depressa are accessible to rodents, who push their heads through the stamens to reach the nectar at the bottom of floral cups. Note the pollen on the gerbils snout. B Evidence of visits to M. depressa by rodents. Mammals allowed access to plants Mammals excluded from plants Percent of plants that set fruit 30.4 4.3 Average number of fruits per pant 1.39 0.47 Average number of seeds per plant 20.0 1.96 C Fruit and seed production of M. depressa with and without visits by mammals. Mammals were excluded from plants by wire cages with openings large enough for insects to pass through. Twenty-three plants were tested in each group. FIGURE 29.7 Testing pollination of M. depressa by rodents. How many rodents were captured? Of these, how many showed some evidence of ingesting M. depressa pollen?
Pollen grains develop in which structure? a. the anther b. the stigma c. the filament d. the carpel
mule of eudicot C. Endangered I. eptive seed is called CRITICAL THINKING e gametes. v seedlings. rm re mature varies ovaries or a party and a cantaloupe nelo). A tough outer oft, juicy tissue ny seeds (left). er friends will ategorize this anics, runs to her k, and opens it 2. What does she ophytes 1. Label the parts of the flower shown above.
Flower No.of No of of Stigma No. Ovary superior Complete Flaral Monocot Name sepals petals anthers, Free or (S) or inferior or symmetry or dicot Fused, Fused, color fused or incomplete flower separate, separate, color intermediate flower color (IM) 1. Lily 2. 3.
A Your Your da Laun O Laun S Laun A Foren E Fo X E Forer Forer y mon a Grade M (be /d/1JRG2bCkck5BmrGpQDisisLXeULosgV-36SOBBKS_F8M/edit Reques PARTS OF A FERN Frond The whole fern leaf; blade and stalk. Ads-rachis The stalk within the blade. The expanded, leafy part of the frond. Pinna - leaflet A primary division of the blade. Pinnule-subleaflet A division of the pinna. Stalk-Stipe The stalk below the blade. Pinnules can be divided into lobes #8 さo (Crosier) An uncurling frond. 立
A botanist Collected leat specimen two different plants (plant 1 & 11). He sections of both the took trans verse. Specimens. stained and observed them under microscope. Leaf brom Plant 1 File No. Stomata on F Upper epidermis The plants а хепорнуте Cuticle Lower epidermis upper from ther J lowen AIR epidermis epidermis present Sabsent present absent present absent present present-absent absent 1 11 апе! and and mesophyte b- Xenophyte and bloating hydrophyte C. Mesophyte and submerged hydrophyte d. Floating hydrophyte and xerophy de spaces
Species name: Zea mays (cross section) Table 1. Summary of differences Tissue System Stem x.s. Leaf x.s. Dermal Ground Vascular
Corks 2 econdary ylum CONDARY GROWTH IN A WOODY STEM labels from the list provided to the numbered lines in the diagram of the woody bass- below. 4. REPORT SECTION 3. Name: Day & Hours of Lab Section: K cams 7.Zylum rou 8. 9. tas 5. Vascular cambium 6. Lote Nood pith BSC2011L LAB v. 20231 EXERCISE 5.4 Pith Vascular tissue (xylem) Vascular cambium Annual rings Vascular tissue (phloem) Cortex Cork Wood