Add metabolic poison to the soil of the experimental plot of mosses. Scientists have discovered that the pale yellow flowers of Brazil nut trees cannot fertilize themselves and admit only female orchid bees as pollinators. A increase of the above-ground stem. C mosses, hornworts, and liverworts. Sporophytes are vascular, whereas gametophytes are nonvascular.
A Viridiplantae B Plantae C Pterophyta D Bryophyta E Charophycea b 162800220 protection from predators A tracheids and phloem B secondary compounds C cuticle D alternation of generations b 162800221 protection from desiccation A tracheids and phloem B secondary compounds C cuticle D alternation of generations c 162800222 transport of water, minerals, and nutrients A tracheids and phloem B secondary compounds C cuticle D alternation of generations a 162800223 Which of the following was not a challenge for survival of the first land plants? This disintegration does not occur in the cells of most protists and fungi. Similarly, which pair of structures protects seed plants' embryos and male gametophytes, respectively, from desiccation? The process of meiosis produces haploid cells. It typically eats some of the seeds, buries others, and leaves still others inside the fruit, which moisture can then enter and allow the remaining seeds to germinate. A Embryophyta B Viridiplantae C Plantae D Charophyceae E Tracheophyta b 162800229 Bryophytes have all of the following characteristics except A multicellularity. These spores are haploid cells that grow into haploid gametophytes. E They are asexual reproductive structures. One species benefits by eating the tissues of the other, and the other is harmed by having its tissues consumed.
D they have no adaptations to prevent desiccation. B Rhizoids are not absorptive structures. What accounts for the relative tallness of Polytrichum? One stains sporophyte tissue blue; the other stains gametophyte tissue red. In the life cycle of bryophytes, gametophytes are the dominant stage and are generally larger than sporophytes. Arrange the following in the correct sequence, from earliest to most recent, in which these plant traits originated. C Gametangia protect gametes from excess water.
A sources of water B sperm transfer C desiccation D animal predation E absorbing enough light d 162800224 The following are all adaptations to life on land except A rosette cellulose-synthesizing complexes. Haploids contain one set of chromosomes in each of their cells. B not all are heterosporous. E Individuals could compete more effectively for access to light. Sporophytes are larger than gametophytes. D increased number of chloroplasts in roots.
D If the metabolic poison acts against the mitochondria of the rhizoid cells. Which of the following statements about stomata is accurate? It typically eats some of the seeds, buries others, and leaves still others inside the fruit, which moisture can then enter and allow the remaining seeds to germinate. The chloroplasts of plants and green algae all have both chlorophyll a and b. Which of these hypotheses is least likely to account for the observed results? Which of the following tests could you use to determine whether the developing organism is a protostome or a deuterostome? It typically eats some of the seeds, buries others, and leaves still others inside the fruit, which moisture can then enter and allow the remaining seeds to germinate. B specialized placental transfer cells surrounding the zygotes. A haploid sporophyte B haploid gametes C diploid gametes D haploid spores E diploid spores d 162800278 Microphylls are characteristic of which types of plants? A phragmoplast B peroxisome C apical meristem D chlorophylls a and b E rosette cellulose-synthesizing complex c 162800218 Whereas the zygotes of charophytes may remain within maternal tissues during their initial development, one should not expect to observe A any nutrients from maternal tissues being used by the zygotes. B They may temporarily contain sporophyte embryos.
It is a hardwood tree that can grow to over 50 meters tall, a source of high-quality lumber, and a favorite nesting site for harpy eagles. A horsetails B lycophytes C pine trees D tree ferns E whisk ferns c 162800260 If a fern gametophyte is a hermaphrodite that is, has both male and female gametangia on the same plant , then it A belongs to a species that is homosporous. A biology student hiking in a forest happens upon an erect, 15-cm-tall plant that bears microphylls and a strobilus at its tallest point. A If, upon dying, the rhizoids leak nitrogenous compounds into the soil before final nitrogen content is measured. A Fertilization would probably be more difficult. Nonvascular Plants Nonvascular plants informally called bryophytes generally live very close to the ground, sprawling out rather than growing upward.
Over evolutionary time, the sporophyte has replaced the gametophyte in plant life cycles. A student encounters a pondweed which appears to be a charophyte stonewort. A Mosses have no roots. Which of the following statements about the transition from ocean to land by plants is most likely to be accurate? E a reduced, dependent sporophyte. In ferns, meiosis results in the formation of egg and sperm cells.
One lake is surrounded by a dense Sphagnum mat; the other is not. D land plants evolved directly from the green algae that perform alternation of generations. All land plants exhibit alternation of generations. B plants evolved alternation of generations independently of green algae. A green algae B red algae C charophytes D brown algae E angiosperms c 162800209 The structural integrity of bacteria is to peptidoglycan as the structural integrity of plant spores is to A lignin.
Listed below are four adaptations of terrestrial vertebrates. The foot is embedded in the gametophyte and absorbs nutrients from it. A the greenhouse effect present throughout the Devonian period B the reverse-greenhouse effect during the Carboniferous period C the association of the roots of land plants with fungi D the rise of herbivory E the rise of wind pollination d 162800228 Which of the following taxa includes the largest amount of genetic diversity among plantlike organisms? B Moss gametophytes lack stomata. The process of meiosis produces diploid cells. Animals that consume Brazil nuts derive nutrition mostly from tissue whose nuclei have how many chromosomes? What advantage would branched sporophytes provide in this stage of the life cycle? Plant gametophytes are haploid multicellular bodies. B flagellated sperm are produced. What do these sperm do? In addition to green algae and plants, euglenids and a few dinoflagellates have chlorophyll a and b.
Which of the following accounts for the fungal movement, as described here? Which of these would be the most certain means of distinguishing whether it was a true moss, or a club moss? This plant is probably most closely related to A mosses. Consequently, which of these is least likely to be found associated with such appendages? Establish two identical plots of Polytrichum mosses; one as a control, the other as the experimental treatment. For plants, haploid and diploid cells divide via mitosis. Which of the following is a difference between plants and fungi?. The process of meiosis produces gametes. Drag the labels onto the diagram below.