Describe pollination-forms of pollination
Describe briefly the term pollination? And also write down the main forms of the pollination?
Expert
The procedure in which pollen grains (or male gametophytes of phanerogamic plants) reach female gametophyte is named as pollination.
The main forms of the pollination are: anemophily, in that pollen is carried by the wind. Hydrophily, pollination helped by the water entomophily, pollen carried by the insects’ ornitophily, pollination by bird’s chiropterophily, pollen dissemination by the bats.
Characteristics of flowers of each plant species relate to type of pollination employed by plant. Colored flowers are specialized in insect and bird attraction; nocturnal flowers basically white and perfumed, many specialized in pollination by the bats; the nectar is also a specialization to attract the pollinator animals; flowers which produce an exaggerated amount of the pollen frequently use the wind as pollinator; the position of the anthers more external or internal next to nectar is a way to facilitate pollen dissemination respectively by wind or by the animals.
Explain the germ layer from which do the liver and the pancreas originate? Specify the other organs and tissues which are made from that germ layer?
Explain the phenomenom of plasmolysis and how it can be used to determine osmotic pressure of cell sap
Describe the primary structure of a protein? What is the significance of primary structure?
Write down the relation between the minimum and the maximum blood pressure with the phenomena of diastole and systole?
What is meant by the varices? Why they are common within the inferior limbs?
Explain the term evolutionary tree? Is there an accurate evolutionary tree known by science which describes the emergence and origin of each and every kind of living being?
How can be binding of two amino acids for the peptide formation is explained?
What do you know about an evolutionary explanatory hypothesis for the secretion by the heart of hormone which regulates the renal function? Name that particular hormone?
How did industrial revolution in the England provide an example of the natural selection?
List out the steps in which cerebrum anatomically divided?
18,76,764
1928157 Asked
3,689
Active Tutors
1417882
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!