Download App

STD 12 - 11. organisms and populations — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 11. organisms and populations1 Mark
MCQ
Barnacles growing on the back of a whale is example of .........
  • A
    Parasitism
  • B
    Amensalism
  • C
    Predation
  • ✓
    Commensalism
✓

Answer

Correct option: D.
Commensalism
d

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 (0.5 Marks)" from STD 12 - 11. organisms and populations→STD 12 - 11. organisms and populations — all question types→BIOLOGY STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Which of the following National Parks is home to the famous musk deer or hangul?
→
Which one of the following pairs of features is a good example of polygenic inheritance ?
→
Glucose fermentation by yeast yields:
→
$A$... regulators are able to maintain homeostasis by means which ensures constant body temperature, constant osmotic concentration, etc. All ...$B$... and ...$C$.... and is very few lower vertebrate and invertebrate species are indeed capable of such regulation (thermoregulation and osmoregulation)

Evolutionary biologists believe that the 'success' of mammals is largely due to their ability to maintain a constant body ...$D$... and thrive whether they live in Antarctica or in the Sahara desert
Choose the correct option for $A , B , C$ and $D$

→
Which of the following can be taken as characteristic demographic features of the developing countries?

$(a)$ High fertility rate

$(b)$ Rapidly rising mortality rate

$(c)$ Very young age distribution

$(d)$ Rapid population growth

$(e)$ Rapidly falling mortality rate

$(f)$ Very old age distribution
 

→
Which type of living organisms given below are listed in ‘Red Data Book’?
→
Chlorella is a type of :
→
Which one of the following cannot be explained on the basis of Mendel’s law of dominance?
→
Match List $I$ with List $II$ :

List $I$  List $II$ 
$A$ Typhoid $I$ Fungus
$B$ Leishmaniasis $II$ Nematode
$C$ Ringworm $III$ Protozoa
$D$ Filariasis $IV$ Bacteria

Choose the correct answer from the options given below:

→
$RR$ $(Red)$ is crossed with $ww$ $(white)$, all the $Rw$ offsprings are pink. This is an indication that $R$ gene is
→