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the size, shape, and arrangement of the leaves, which are microphylls, small leaves with only one vein. Examine the roots and their relationship to the stem. In Selaginella, the roots grow downward from a leaf-bearing stem. The sporangia of the Lycopodiophyta are borne on leaves essentially similar to the sterile leaves of the plant. The sporangium bearing leaf is called a sporophyll. In Selaginella and Lycopodium, the sporophylls occur in compact aggregates called cones, or strobili. 1. Label the microphylls and strobili in the Figure 1 below. Figure 1. Lycopodium sp. Examine the prepared slide of a mature Lycopodium strobilus. (See text Figure 17-16, pages 406 and 407.) Note that Lycopodium, like most species in the Lycopodiaceae, is homosporous and only produces one type of spore. 2. Label the spores in Figure 2 below. qolboqooy Figure 2. Lycopodium strobilus l.s. SUT 3. Given that Lycopodium is homosporous, would you expect its gametophytes to be unisexual or bisexual? Explain Photo by Carolyn Alling

the size, shape, and arrangement of the leaves, which are microphylls, small leaves with only one vein. Examine the roots and their relationship to the stem. In Selaginella, the roots grow downward from a leaf-bearing stem. The sporangia of the Lycopodiophyta are borne on leaves essentially similar to the sterile leaves of the plant. The sporangium bearing leaf is called a sporophyll. In Selaginella and Lycopodium, the sporophylls occur in compact aggregates called cones, or strobili. 1. Label the microphylls and strobili in the Figure 1 below. Figure 1. Lycopodium sp. Examine the prepared slide of a mature Lycopodium strobilus. (See text Figure 17-16, pages 406 and 407.) Note that Lycopodium, like most species in the Lycopodiaceae, is homosporous and only produces one type of spore. 2. Label the spores in Figure 2 below. qolboqooy Figure 2. Lycopodium strobilus l.s. SUT 3. Given that Lycopodium is homosporous, would you expect its gametophytes to be unisexual or bisexual? Explain Photo by Carolyn Alling

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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e th aci st SJ I the size, shape, and arrangement of the leaves, which are microphylls, small leaves with only one vein. Examine the roots and their relationship to the stem. In Selaginella, the roots grow downward from a leaf-bearing stem. The sporangia of the Lycopodiophyta are borne on leaves essentially similar to the sterile leaves of the plant. The sporangium bearing leaf is called a sporophyll. In Selaginella and Lycopodium, the sporophylls occur in compact aggregates called cones, or strobili. 1. Label the microphylls and strobili in the Figure 1 below. Figure 1. Lycopodium sp. Examine the prepared slide of a mature Lycopodium strobilus. (See text Figure 17-16, pages 406 and 407.) Note that Lycopodium, like most species in the Lycopodiaceae, is homosporous and only produces one type of spore. iw ow del ain 2. Label the spores in Figure 2 below. qXI 92 Laibaquari Figure 2. Lycopodium strobilus l.s. 3. Given that Lycopodium is homosporous, would you expect its gametophytes to be unisexual or bisexual? Explain Photo by Carolyn Alling
Transcribed Image Text:e th aci st SJ I the size, shape, and arrangement of the leaves, which are microphylls, small leaves with only one vein. Examine the roots and their relationship to the stem. In Selaginella, the roots grow downward from a leaf-bearing stem. The sporangia of the Lycopodiophyta are borne on leaves essentially similar to the sterile leaves of the plant. The sporangium bearing leaf is called a sporophyll. In Selaginella and Lycopodium, the sporophylls occur in compact aggregates called cones, or strobili. 1. Label the microphylls and strobili in the Figure 1 below. Figure 1. Lycopodium sp. Examine the prepared slide of a mature Lycopodium strobilus. (See text Figure 17-16, pages 406 and 407.) Note that Lycopodium, like most species in the Lycopodiaceae, is homosporous and only produces one type of spore. iw ow del ain 2. Label the spores in Figure 2 below. qXI 92 Laibaquari Figure 2. Lycopodium strobilus l.s. 3. Given that Lycopodium is homosporous, would you expect its gametophytes to be unisexual or bisexual? Explain Photo by Carolyn Alling
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