Circulatory systems of animals
State the various differences between octopuses and mussels with respect to their circulatory systems? How does this difference persuade the mobility of these animals?
Expert
Cephalopod molluscs, such as squids and octopuses, have closed circulatory system having blood pumped under the pressure flowing within the vessels. Bivalve molluscs, such as oysters and mussels, have an open circulatory system also known as lacunar circulatory system, where the blood flows under the low pressure as it falls in the cavities of body and not only circulate within the blood vessels. Molluscs having closed circulatory systems are quite larger, agile and actively move; molluscs having the open circulatory systems are slow, smaller and some are basically sessile.
Name the meiotic division does the division of the homologous take place? What are the ploidies of the produced cells after the end of that procedure?
How do mineral salts contribute in the osmotic regulation?
What is the application of counter current immuno electrophoresis?
Specify which substance do the elastic fibers of connective tissue are made up of? State some of the functions of these fibers?
Give a brief description of photoperiodism?
What two important functions are carried out by the price system? (1.) It is an automatic mechanism for distributing goods & services.(2.) It finds out the allocation of resources among producers and the final mix of outputs.
What do you mean by the term concentration gradient? Is it accurate to refer to “concentration gradient of water”?
Are fruits always flesh part of “fruits”? Is edible part of the onion a fruit?
Write down name of the periods of first meiotic division.
Explain the formation of the male gametes of gymnosperms? Explain the relationship between pollen grains and concept of the alternation of generations?
18,76,764
1936183 Asked
3,689
Active Tutors
1432746
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!