Answer: STEMS, like leaves, are plants organs. xylem and phloem are in the roots, stem, and leaves. XYLEM is the tissue are tubes that carry materials from the roots to the leaves. PHLOEM is tubes that carry sugar away from the leaves.
Answer: different colours of leaves is due to different chlorophyll pigments.Pigments of different colours absorb light of different wavelenght .At various depths of water,the wavelength of light received is also different so in an attempt to absorb maximum available light , the plants have different colured pigments and therefore different colured leaves
Answer: This is correct. The chlorophyll is a pigment that, in addition to making the leaf green, it allows photosynthesis which is the process of using sunlight to convert carbon dioxide to oxygen in addition to making proteins and sugars. All life on earth is reliant on photosynthesis.
Answer: yes. ex: cactus. True plants (as opposed to fungus) have chlorophyll in their leaves. They carry out photosynthesis like any other plant, but other chemicals in the leaves mask the chlorophyll, giving the leaf a non-green hue. There is also a species of parasitic dodder (Cuscuta europaea) which does not photosynthesize, and depends on other plants for nutrition.