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answer 5. stigma petal flowers.
Answer:
1) Venation is the phenomenon of arrangement of veins in the lamina of the leaf surface. It is of three types, reticulate, parallel and furcate venation. ... In parallel venation, veins arise from the mid rib and run parallel. For example, leaves of monocot plants. In furcate venation, veins form dichotomous branching.
2)Phyllotaxy refers to the pattern or arrangement of leaves on the stem or branch of a plant. It is of three types: alternate, opposite and whorled phyllotaxy. In alternate phyllotaxy, a single leaf arises from the node of a branch.
3) Leaves can be modified in the form of spines that reduce water loss and also act as a defence. Some are modified into tendrils to provide support to the plant. Some leaves are thick that help in water storage. Some are modified to catch and digest insects.
4) Racemose: In racemose types of inflorescence, the main axis grows continuously and flowers are present laterally on the floral axis. ... Cymose: In the cymose type of inflorescence, the main axis does not grow continuously. A flower is present terminally on the main axis. The flowers are borne in a basipetal order.
5)A flower consists of sepals, petals, stamens, and pistils. A stamen has two parts called the anther and the filament. A pistil has three parts called the stigma, style, and ovary.
6)The arrangement of ovules within the ovary is known as placentation. The placentation is of different types namely, marginal, axile, parietal, basal, central and free central. ... In basal placentation, the placenta develops at the base of ovary and a single ovule is attached to it. Example – sunflower.
7)Answer. apocarpous-1the flowers with apocarpous ovary have more than one carpel . ... the flowers with syncarpous over have more than one carpel. these carpels are fused.
8)The fruit wall, or pericarp, is divided into three regions: the inner layer, or endocarp; the middle layer, or mesocarp; and the outer layer, or exocarp.
9)Answer: The full form of PEN is Primary Endospermic Nucleus. Explanation: Primary Endospermic Nucleus is the nucleus present in the middle of the embryo sac. During the Nuclear division inside the ovule, the nucleus divides into 8 different nuclei.IN BIO PEN IS USED AS A ABBREVIATION FOR PENICILLIN.. there can be one as Primary Endosperm Nucleus...
10) Monocot plants are marked by seeds with a single cotyledon, parallel-veined leaves, scattered vascular bundles in the stem, the absence of a typical cambium, and an adventitious root system.