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Зображення

EN_00966278_4328
EN_00966278_4328

Illustration of the structure of typical plant cells: cell wall, pectin, plasma membrane, cytoplasm, vacuole, vacuolar membrane (tonoplast), mitochondrion, nuclear membrane, chromatin, nucleolus, nucleoplasm, Golgi apparatus, endoplasmic reticulum, ribosomes, chloroplast, grana, and pyrenoids.

EN_00966278_4329
EN_00966278_4329

Illustration of the structure of typical plant cells with labels: cell wall, pectin, plasma membrane, cytoplasm, vacuole, vacuolar membrane (tonoplast), mitochondrion, nuclear membrane, chromatin, nucleolus, nucleoplasm, Golgi apparatus, endoplasmic reticulum, ribosomes, chloroplast, grana, and pyrenoids.

EN_00966278_6130
EN_00966278_6130

Conceptual illustration of a tree with a root system that mimics the bronchial tree structure of the lungs.

EN_00966278_8462
EN_00966278_8462

Illustration of nuts and nut kernels of the Persian walnut tree, Juglans regia. Walnut oil is pressed from the kernels of the nut. The tree is shown at right.

EN_00966278_8463
EN_00966278_8463

Illustration of the Aleppo pine (Pinus halepensis), a detailed view of the branches with the leaves and cones, with the tree shown above. A variety of rosin obtained from the Aleppo pine is known as "pece greca," or Greek pitch.

EN_00962647_0077
EN_00962647_0077

Cherry tree in autumn

EN_00962647_0078
EN_00962647_0078

Cherry tree in spring

EN_00962647_0079
EN_00962647_0079

Cherry tree in summer

EN_00962647_0611
EN_00962647_0611

Cherry tree in winter

EN_00957730_2630
EN_00957730_2630

Illustration of Eurasian milfoil (Myriophyllum spicatum), an aquatic plant.

EN_00957730_2632
EN_00957730_2632

Illustration of a food web with labels. A food web is a set of interconnected food chains by which energy and materials circulate within an ecosystem.

EN_00957730_2651
EN_00957730_2651

Northern milfoil.

EN_00957730_2658
EN_00957730_2658

Illustration of purple loosestrife (Lythrum salicaria).

EN_00957730_2678
EN_00957730_2678

Illustration of wild calla (Calla palustris), a flowering plant native to cool temperate regions of the Northern Hemisphere, growing in bogs and ponds.

EN_00957730_2679
EN_00957730_2679

Labelled illustration of the wild iris (Dietes iridioides).

EN_00957730_2680
EN_00957730_2680

Illustration of the wild iris (Dietes iridioides).

EN_00966278_3735
EN_00966278_3735

Illustration of the concept of photosynthesis: a molecular model of chlorophyll with green leaves.

EN_00966299_1230
EN_00966299_1230

Illustration of a plant cell, showing various organelles.