Biology
Inquiry into plants was written by
Theophrastus
All human bodies have salt. How much salt is is an average adult body?
250 grams
The instrument that measures and records the relative humidity of air is?
Hygrometer
The variations of colors in stars depend on?
temperature
Who was the electron microscope was invented by?
Knoll and Ruska
A single piece of coiled DNA is know as a?
Chromisome
DNA codes for proteins, which are the building blocks of organisms. What is the most plentiful protein in the human body?
Collagen You will find Collagen in your Bones and tissues
If the length of of a single pendulum is halved then it's period of oscillation is?
decreased by a factor
What is the brightest object on the sky at night
Jupiter
a simple microscope lens is a
short focus convex lens
The change of DNA in an organism that results in a new trait is a?
Mutation
What is the most common isotope for Hydrogen?
Protium
A passenger standing in a bus is thrown outward when the bus takes a abrupt turn this is due to
inertia of motion
What is Saturn's SECOND largest moon?
Rhea!
is the compound HCl a acid or a base
acid
The area of biology devoted to the study of fungi is?
Mycology
Who invented the periodic table?
Mendeleev
Decibel is the unit used for?
Intensity of sound
how many constellations are officially recognized
88
Chlorophyll is a compound in which the central metal is?
Magnesium
Which transcriptional control feature are found in both prokaryotes and eucaryotes?
Promoter repressors
The ratio of pure gold in 18 carrot gold is?
75%
Short sight in the human eye can be corrected by a
concave lens
What is earth's true shape?
oblate spheroid
Potassium Permanganate is used to purify water because
it is an oxidizing agent