The leaves of conifers are either called needles or scales. These represent the two different leaf types commonly found on conifers. Needles are the...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough...
Leaves are part of the plant shoot system, which is the part of a plant that extends above the soil. The primary function of leaves is to collect light energy from the sun as well as carbon dioxide and convert these inputs into sugars through the process of photosynthesis. The upper part...
Giant Amazonian lily pads are the world’s largest and strongest floating plants. How they’re built is inspiring real-world structures from skyscrapers to wind turbines.
crushed up infected tobacco leaves and injected the resulting juice into the veins of healthy leaves, the once-healthy leaves developed the speckling and discoloration characteristic of the diseased plants. Mayer correctly surmised that whatever was causing tobacco mosaic disease was in the leafy juice...
Both moths and butterflies are actually in the final act of a four-stage life cycle that Lepidoptera share. This cycle begins with the egg, passes through the caterpillar (larva) and the chrysalis (pupa) stages, and finally ends with the adult stage, generally called the imago, which can ...
Oak galls, also called oak apples, are a common phenomenon produced by the oak trees' reaction to wasps that lay their eggs inside of the oak bark. Oak galls are high in tannic acid and have been used traditionally as medicine by many cultures around the world; they are also a source ...
aAtFRO2 and AtFRO3 are mainly expressed in roots of Arabidopsis, AtFRO5 and AtFRO6 in shoots and flowers, and AtFRO7 in cotyledons and trichomes, whereas AtFRO8 transcription was specific to leaf veins (Wu et al., 2005). AtFRO2和AtFRO3用Arabidopsis根在射击和flowers在盾状体和tr...
Varicose veins How does butcher’s broom work? Butcher’s broom has two primary active saponin compounds: ruscogenin and neoruscogenin. These work in the following ways: Causes narrowing of the blood vessels Improves the strength and tone of the veins ...
Miners discovered a rich vein of gold in the shaft. 1 Artery A route for conveying something vital. The river acted as an artery for trade. 4 Vein Veins are blood vessels that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions...
A vessel is a general term for any tubular structure carrying blood or lymph in the body, while a vein is a specific type of blood vessel that returns deoxygenated blood to the heart, except for pulmonary veins.