_______ are the first group of invertebrates which have developed a closed circulatory system.

Related Mcqs:

1. The biggest group of invertebrates is_________?

   A. Worms
   B. Insects
   C. Jelly fish
   D. None of these

   Submitted by: Neelam Parri

2. Circulatory system is open type in all of the following except:___________?

   A. Arthropoda
   B. Gastropoda
   C. Pelecypoda
   D. Cephalopoda

3. Open circulatory system can contain_________?

   A. Red Blood Cells
   B. White Blood Cells
   C. Haemoglobin
   D. All of these

4. Which one of the following animal has two separate circulatory pathways?

   A. Shark
   B. Whale
   C. Frog
   D. Lizard

   Submitted by: Babar Ali Kunbhar

5. Second largest phylum of invertebrates is____________?

   A. Porifera
   B. Arthropoda
   C. Mollusca
   D. Chordata

6. Fishes, most of the invertebrates and amphibians are examples of ________ animals?

   A. Endotherms
   B. Ectotherms
   C. Heterotherms
   D. Homeotherms

7. Most of the marine invertebrates are__________?

   A. Osmoconformers
   B. Osmoregulators
   C. Both depend upon the concentration of sea water
   D. None of these

8. Largest invertebrates is _____________ ?

   A. Earthworm
   B. Euglena 
   C. Squids 
   D. Star fish

   Submitted by: Shahjahan junejo

9. If a man having blood group AB marries a woman who is heterozygous for blood group, what is the probability of their first child having blood group B?

   A. 40%
   B. 45%
   C. 50%
   D. 71%

   Submitted by: Rashid Mehmood

10. A bond formed by linkage between -OH of carboxyl group of one amino acid and H of amino group of another amino acid which releases water is called__________?

    A. Phosphodiester linkage
    B. Glycosidic bond
    C. Peptide bond
    D. Hydrogen bond