They are considered to be the most primitive and are surely the first of the vertebrates??
A. Frogs
B. Reptiles
C. Amphibinas
D. Jawless fishes
Category: Biology Mcqs
Which of the following ions are involved in the initiation of nerve impulse_______________??
A. Na
B. K
C. Fe
D. none of these
Which of the Euglenas (a Protoctista) character resembles that of animals______________??
A. They can move
B. They lack cell wall
C. They do not have chlorophyll
D. Both a and b
Brown fat present in certain mammals is specialized in___________??
A. Providing insulation in cold environment.
B. Providing insulation in hot environment
C. Rapid heat production.
D. Controlling heat production.
A-biogenesis means that_____________??
A. Living things originated from bacteria
B. Mycobionts
C. Non-living things
D. None of these
Stentor is a/an____________??
A. Ciliate
B. Foraniniferan
C. Actinopods
D. Apicomplexan
Of the following, which one has more variety of nutrition________________??
A. Animals
B. Bacteria
C. Plants
D. Fungi
Which of the following are responsible for the detection of changes in environment??
A. Receptors
B. Neurons
C. Effectors
D. All of these
Proteins comprise of ___________% of the total dry weight of a cell??
A. 40%
B. 50%
C. 60%
D. 70%
Ribosomes are tiny Granules first studied in 1955 by__________??
A. De-Duve
B. Schwann
C. August Weismann
D. Palade
