--%>
Assignment Help - homework help

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?

E

Expert

Verified

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.

   Related Questions in Biology

  • Q : Trait Theory of Personality -

    This theory is defined as "any distinguishing, relatively enduring way in which one individual differs from another". Accordingly, trait theorists are concerned with the construction of personality tests (or inventories) that pinpoint individual differences in terms of specific traits. Tr

    		•
  • Q : Types of fermentation-Chemical equations

    Write down the two types of fermentation. And also write down their chemical equations.

    		•
  • Q : Explain DNA ligases Explain the DNA

    Explain the DNA ligases? How do these enzymes participate within the recombinant DNA technology?

    		•
  • Q : Changing Workforce Demographics -

    A major reason for the emergence of diversity as an important challenge is changing demographics. Older workers, women, minorities, and those with more education are now entering the workforce in record numbers. However, for now it can be noted that the composition of

    		•
  • Q : Need Priority Model - Motivation -

    There are two types of needs-basic and secondary or acquired. Basic needs are important for -survival whereas acquired needs are not so important. We know various needs as felt by a man but do not know about their preferential order. A .H. Maslow solved this problem and presented a theory on prio

    		•
  • Q : Typical vegetation and typical fauna of

    Give a brief explanation of typical vegetation and typical fauna of temperate forests?

    		•
  • Q : Description of factor VIII Give a brief

    Give a brief description of the term factor VIII? And also write down the genetic disease in which this factor is absent?

    		•
  • Q : How do bacteria reproduce How do

    How do bacteria reproduce? Briefly describe it.

    		•
  • Q : Description of vitamins Give a brief

    Give a brief description of vitamins? And also write down the main vitamins needed by humans?

    		•
  • Q : Elements constituting stomata Specify

    Specify the elements which constitute the stomata?

    		•