Write down the cell types which form xylem
Write down the cell types which form xylem? And also write down the main aspects of those cells?
Expert
The main cells of xylem are tracheids and vessel elements (these only in the angiosperms). The tracheids and vessel elements are dead cells which have lost their cytoplasm and only their cell wall impregnated with the lignin (an impermeable biopolymer) remained. The tracheids form tubes which communicate with neighboring tubes by the pores; the vessel elements don’t present pores however instead they communicate with successive vessel element by the perforations in their extremities.
How three main arthropod classes typified according to presence of antennae?
Also known as the fax machine is very useful for transmitting visual material such as diagrams, illustrations, photographs or copies of artwork visuals. All that we need for it is the fax machine with a connected telephone. As the document to be transmitted is fed through the machine, it is elect
Write down the vector of Chagas’ disease? How is the disease transmitted?
Compare the method of digestion between protozoans and sponges
What do you mean by the term Aquaculture? Also state the major kinds of aquaculture?
Food once swallowed by the Cows and then this food goes back into their mouth to be chewed again. Explain this phenomenon?
Normal 0 false false
explain why mitochondria are considered as the power plants of an aerobic cells
Specify the structure into which the follicle is transformed after the process of ovulation? Explain the importance of that structure within the menstrual cycle?
What does bioavailability signify?
18,76,764
1960046 Asked
3,689
Active Tutors
1427581
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!