Download App

Body Fluids and Circulation — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYBody Fluids and Circulation1 Mark
MCQ
Blood platelets occur in the blood of ____________:
  • A
    Birds
  • B
    Mammals
  • C
    Reptiles
  • D
    Amphibians
✓

Answer

  1. Mammals

Explanation:

Only mammals have platelets, tiny cells without nuclei that are responsible for plugging the leaks in the blood vessels. Other animals use more conventional systems of hemostasis. Some marine invertebrates have a single type of blood cell, responsible for hemostasis, but also for other types of defences. Non-mammalian vertebrates have specialized nucleated thrombocytes to do the job.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Body Fluids and Circulation→Body Fluids and Circulation — all question types→BIOLOGY STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

When the fluid outside a cell has a greater concentration of a given molecule than the fluid inside the cell, the external fluid is:
→
Most abundant lipid in the cell membrane is:
→
$ECG$ records
→
Growth is defined as a change which is
→
The pre-caval vein is formed of
→
The Nissl’s granules of nerve cell are made up of:
    →
    Recombination of genes occur at:
    →
    Which of the following diseases is an autoimmune disorder?
    →
    Glycolysis occurs in
    →
    Select the answer which correctly matches the endocrine gland with the hormone it secretes and its function/deficiency symptom.
    →