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...
What are the fields of botany?What are angiosperms?What are the different types of plant growth?You have been provided a blade of grass and asked to make a general classification of what kind of plant it is. You notice that the leaf is green, small, and has parallel veins running ...
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.
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 ...
What is the meaning of leaf primordia? a group of cells that will develop into a leaf, seen as small bulges just below the shoot apex. Also called leaf buttress . How does a leaf primordium become a leaf? When very young leaf primordia (P2) are excised from the shoot apex in tobacco...
They are thin and have a large surface area. This means they can absorb a lot of sunlight, and gases such as oxygen and carbon dioxide can pass in and out of the leaf easily. Leaves have veins – xylem and phloem, which transport water, minerals and sugars around the plant. ...
when he 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 lea...
Leaf-like body shape Vein patterning on wings similar to leaf veins Distribution of Katydids Thedistributionof katydids covers a wide range, with about 6,400 species worldwide. They are commonly found in forests, parks, and yards. While they are more populous in Neotropical regions, they are ...
Any tube or canal in which the blood or other fluids are contained, secreted, or circulated, as the arteries, veins, lymphatics, etc. Vein (botany) In leaves, a thickened portion of the leaf containing the vascular bundle. Vessel A continuous tube formed from superposed large cylindrical or...
Also called nervure. Artery The trachea or windpipe. Vein (Geology) A regularly shaped and lengthy occurrence of an ore; a lode. Artery One of the vessels or tubes which carry either venous or arterial blood from the heart. They have tricker and more muscular walls than veins, and are ...