MCQ
Which one is not a true fossil
  • A
    Placoderm
  • Limulus
  • C
    Archeopteryx
  • D
    Therapside

Answer

Correct option: B.
Limulus
b
(b)Limulus is a living arthropod.

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

Similar questions

$I.$ Glucose $II.$ Amino acid $III.$ $N a^{t i i}$ $IV.$ Nitrogenous waste

Which of them reabsorbed actively in the nephron?

Choose the correct option

Which of the following belongs to the phylum annelida
$A$ : Application of stimuli repeatedly just at the start of relaxation of a muscle fibre shows an increase in the extent
of contraction initially and results in treppe or stair case phenomenon.
$R$ : It can be attributed to the summation effect of the sub threshold stimuli being given again and again.
Assertion: In Pheretima blood is confined to the heart and blood vessels.
Reason: Closed type of blood vascular system present in earthworm.
The muscle fatigue occurs due to accumulation of
........ is middle layer of adrenal cortex
Constant flow of $C{O_2}$ from the tissues into the blood is due to
Given below are four statements pertaining to separation of DNA fragments using Gel electrophoresis. Identify the incorrect statements.
(a) DNA is negatively charged molecule and so it is loaded on gel towards the Anode terminal.
(b) DNA fragments travel along the surface of the gel whose concentration does not affect movement of DNA.
(c) Smaller the size of DNA fragment, larger is the distance it travels through it.
(d) Pure DNA can be visualized directly by exposing to UV radiation.
Choose correct answer from the options given below:
In sweet peas, genes $C$ and $P$ are necessary for colour in flowers. The flowers are white in the absence of either or both the genes. What will be the percentage of coloured flowers in the offspring of the cross $Cc\ pp × cc\ Pp$
Statement I: Malaria is caused by protozoan.
Statement II: Malignant malaria is caused by plasmodium malaria.