Can Fish Have Both Ctenoid And Cycloid Scales
Some species of flatfishes have cycloid scales on the blind side and ctenoid scales on the side of the body... View Article
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What Do Fish Scales Look Like
In bony fish, fish scales are broadly classified into the following types: Cycloid scales – these scales are uniform and... View Article
How Do You Interpret Trace Fossils
Also known as Ichnofossils, trace fossils are the geological records of behaviours and activities of extinct organisms. Do note that... View Article
Meiotic Division Of The Secondary Oocyte Is Completed?
a) After zygote formation b) At the time of fusion of a sperm with an ovum c) Prior to ovulation... View Article
Which Of The Following Refer To The Correct Example(S) Of Organisms Which Have Evolved Due To Changes Of Environment Brought About By Anthropogenic Action?
(a) Darwin’s Finches of Galapagos islands. (b) Herbicide resistant weeds (c) Drug resistant eukaryotes. (d) Man-created breeds of domesticated animals... View Article
Identify The Wrong Statement With Regard To Restriction Enzymes?
a) They are useful in genetic engineering. b) Sticky ends can be joined by using DNA ligases. c) Each restriction... View Article
The Montreal Protocol Was Signed In 1987 For Control Of?
a) Release of GreenHouse gases b) Disposal of e-wastes c) Transport of Genetically modified organisms from one country to another... View Article
Flippers Of Penguins And Dolphins Are Examples Of?
a) Industrial melanism b) Natural selection c) Adaptive radiation d) Convergent evolution Answer: (d) Further Reading: List of 25 Important... View Article
The Infectious Stage Of Plasmodium That Enters The Human Body Is?
a) Female gametocytes b) Male gametocytes c) Trophozoites d) Sporozoites Answer: (d) Further Reading: List of 25 Important Topics in... View Article
Which Of The Following Is Correct About Viroids ?
a) They have DNA with a protein coat. b) They have free DNA without a protein coat. c) They have... View Article
Which Of The Following Would Help In Prevention Of Diuresis?
a) Atrial natriuretic factor causes vasoconstriction b) Decrease in secretion of renin by JG cells c) More water reabsorption due... View Article
Some Dividing Cells Exit The Cell Cycle And Enter Vegetative Inactive Stage. This Is Called Quiescent Stage (G0). This Process Occurs At The End Of?
a) S phase b) G2 phase c) M phase d) G1 phase Answer: (d) Research following different contrasting views suggested... View Article
The Process Of Growth Is Maximum During?
a) Senescence b) Dormancy c) Log phase d) Lag phase Answer: (c) Further Reading: List of 25 Important Topics in... View Article
What Is The Value Of A Transitional Fossil?
A transitional fossil can showcase the evolutionary changes which occur between a common ancestor and its descendants. In other words,... View Article
What Can Fossils Not Tell Us?
Fossils cannot provide information such as the colour of the organism, their sounds, and most of their behavior. Further Reading:... View Article
How Are Fossils Older Than 60000 Years Dated?
When absolute dating methods are deemed impractical, relative dating methods are used. Further Reading: List of 25 Important Topics in... View Article
Where Do Paleontologists Look For Fossils?
With the careful study of geological maps, paleontologists can identify suitable areas to prospect fossils. However, as a general rule... View Article
What Information Do Fossils Provide Paleontologists?
Fossils tell us how an animal may have looked in life. Some, such as coprolites (fossilised faeces) give us clues... View Article
Is There A Fish Bigger Than Megalodon?
An extinct fish – Leedsichthys problematicus, is thought to have been bigger than the megalodon. Further Reading: List of 25... View Article
What Is The Heaviest Fish In The World?
The heaviest bony fish in the world is the ocean sunfish. The heaviest cartilaginous fish and the heaviest of all... View Article
