Gymnosperms and angiosperms have similarities in their alternation of generations. Which of the following is NOT a similarity?

Question

BlackTom AI · Accepted Answer

First, let's lay out the given question and options to ensure clarity: The question asks which statement is NOT a similarity between gymnosperms and angiosperms. Options are: a) Both rely on insects or birds to ensure pollen is transported to the female gametophyte. b) Both have reduced multicellular gametophyte stages that are totally dependent on the sporophyte stage. c) Both have a dominant sporophyte stage. d) Both produce a male gametophyte in the form of pollen.

Option a: This statement claims that both gymnosperms and angiosperms rely on animals to move pollen. In reality, gymnosperms mostly rely on wind pollination, whereas many angiosperms use animals. Therefore, this is not a shared feature (not a similarity) between the two groups, making it the correct choice for NOT being a similarity.

Option b: Both groups exhibit a life cycle with a reduced multicellular gametophyte that is dependent on the sporophyte. This is true for gymnosperms and is also true for angiosperms, reflecting a common trend in seed plants. So this is a similarity, not the correct choice.

Option c: A dominant sporophyte stage is characteristic of both gymnosperms and angiosperms. The visible, long-lived plant body in both groups is the diploid sporophyte, making this a similarity.

Option d: Both produce a male gametophyte in the form of pollen. In gymnosperms, pollen grains carry the male gametophyte; in angiosperms, pollen likewise carries the male gametophyte. This is another shared feature, i.e., a similarity.

In summary, all options except a describe features that gymnosperms and angiosperms share. The statement in option a is the one that does not describe a similarity between the two groups, making it the correct answer. The remaining options (b, c, and d) reflect common characteristics of seed plants, including both gymnosperms and angiosperms.

BIO1022 CL S2 2025 Lab 5 Worksheet

Gymnosperms and angiosperms have similarities in their alternation of generations. Which of the following is NOT a similarity?

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