HORTICULTURE SCIENCE
PLANT BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Both gymnosperms and angiosperms produce seeds on the scales of cones, but angiosperms have flowers.
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Gymnosperms rely on animals to carry pollen from the female gametophyte to the male gametophyte, while angiosperms rely on wind.
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Gymnosperms require water for sperm to travel from the male gametophyte to the female gametophyte, while angiosperms do not rely on water for fertilization.
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In gymnosperms, male gametophytes and female gametophytes are produced in different structures, while in angiosperms they are usually produced in the same structure.
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Detailed explanation-1: -The key difference between angiosperms and gymnosperms is how their seeds are developed. The seeds of angiosperms develop in the ovaries of flowers and are surrounded by a protective fruit. Flowers can be unisexual (e.g., male flowers and female flowers) or bisexual (the flower has both male and female parts).
Detailed explanation-2: -In angiosperms, the female gametophyte exists in an enclosed structure-the ovule-which is within the ovary; in gymnosperms, the female gametophyte is present on exposed bracts of the female cone. Double fertilization is a key event in the lifecycle of angiosperms, but is completely absent in gymnosperms.
Detailed explanation-3: -Discuss how angiosperms and gymnosperms reproduce. In angiosperms, the pistil is the female reproductive structure found in flowers, and consists of the stigma, style, and ovary. In gymnosperms the cone is the female reproductive part and the pollen is the male reproductive part. More items