How Many Chromosomes Do Humans Have?
Humans have 23 pairs of chromosomes. Of the 23, 22 are autosomes while the other are sex chromosomes. Register at... View Article
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How Fast Do Bacteria Multiply?
Under the right conditions, most pathogenic bacteria are capable of multiplying every 4 to 20 minutes. Register at BYJU’S NEET... View Article
How Long Does Food Take to Reach Your Stomach?
The process of mastication depends on the type of food being consumed. However, once it enters the oesophagus, the peristaltic... View Article
How Long Does it Take a 5mm Kidney Stone to Pass?
The chances of passing a stone smaller than 5mm is 90%. If it is above 5mm, the chance of passing... View Article
How Long Does Food Stay in Esophagus?
The walls of the esophagus don’t drop the food down into the stomach, instead, it uses peristaltic waves to move... View Article
How Long Does Food Stay in the Stomach?
In a healthy, adult human, the contents of the stomach need between 4 to 5 hours to become completely empty.... View Article
How Does Xylem Sap Move?
Xylem sap movement occurs by capillary motion. Register at BYJU’S NEET to explore other fascinating concepts.
Why do plants absorb blue and red light?
Blue and red parts of the spectrum are effective to satisfy the energy requirement of plants. Hence plants absorb these... View Article
What Waste do Fish Produce?
The metabolic waste product of fish is ammonia. Register at BYJU’S NEET to explore other fascinating concepts.
What Was The First Cell On Earth?
Organisms similar to cyanobacteria were thought to be the earliest lifeforms to ever evolve. The evidence of their existence comes... View Article
What Was The First Animal On Earth?
Evidence suggests that sponges are among the first multicellular animals to ever evolve. One of the earliest chordates is Pikaia... View Article
What Was The First Fermented Food?
In a cave near Haifa, Israel, archaeologists have unearthed a beer-like substance with the consistency of porridge. It dates back... View Article
What Was The First Antiviral?
The first-ever (deemed successful) antiviral drug was the Aciclovir, which was effective against herpes virus infections. Register at BYJU’S NEET... View Article
What Were The First Prokaryotes?
Fossil evidence suggests that the oldest known prokaryotes lived 3.5 billion years ago. However, genetic evidence speculates that prokaryotes evolved... View Article
When Did Bryophytes First Appear?
Bryophytes are speculated to have evolved during the Ordovician period, roughly 450 million years ago. Register at BYJU’S NEET to... View Article
When Did C4 Grasses First Appear?
C4 photosynthesis in grasses are speculated to have evolved between 24-35 million ago. Register at BYJU’S NEET to explore other... View Article
When Did Lichens First Appear On Earth?
The types of habitats that lichens live in are not very conducive to forming fossils, hence, the fossil records of... View Article
07 Apr 2021: PIB Summary & Analysis
April 7th, 2021, PIB:- Download PDF Here TABLE OF CONTENTS 1. India-Seychelles High Level Virtual Event 2. World Health Day... View Article
QRSAM – Important Facts for UPSC
Quick Reaction Surface to Air Missile (QRSAM) is designed by India’s Defence Research Development Organization (DRDO). It is a canister... View Article
Does ANP Increase or Decrease Blood Pressure?
ANP or Atrial Natriuretic Factor is a peptide hormone secreted from the atrial wall. It reduces blood pressure by causing... View Article
