BIOLOGY
The most common form of how DNA exists inside a cell
Chromatin
How many neutrons would an element with a mass of 18 amu and 7 protons have?
11
The average precipitation in Toronto over the last 67 years is 75 mm/year is an example of weather or climate?
Climate
Line used to calculate the angle of incidence
Normal
Number of atoms in HCOO2H
6
Alveolus
Bond where electrons are shared
Covalent bond
Why is fossil fuel burning bad?
It increases the CO2 emissions which trap more heat in Earth
The focus on the side of the lens where the object is found is called
Secondary principal focus
What type of compound is NaOH?
Polyatomic ionic compound - specifically base
Stage of mitosis where chromosomes condense and get attached to microtubules
Prophase
What is the name of the compound that is formed with the following ions? Fe2+ and CO32-
Iron (II) carbonate
Aside from CO2, give another example of greenhouse gas
methane
What happens when the eye is unable to accommodate?
Image does not form at the retina where the focal point should be
Type of tissue that supports the body
Connective
Reason to replicate DNA prior to cell division
To create identical daughter cells
State: 1. evidence of reaction in 2H2O(l) --> 2H2(g) + O2(g)
2. type of reaction
New substance formed, decomposition
Why are northern latitudes colder than the equator?
Sun's radiation is spread over larger distances
Which of the following is a slower medium?
water, n=1.78
glass, n= 1.98
glass because n is larger
Two conditions for total internal reflection
1. angle of incidence is larger than critical angle
2. light moves from slow to fast medium
What holds the DNA strands together to form a double helix?
Complementary basepairing
Provide the balanced chemical equation
Sodium metal reacts with chlorine gas to generate a solution of sodium chloride
2Na(s) + Cl2 (g) --> 2NaCl(aq)
Which spheres absorb most of sun's radiation?
Lithosphere and hydrosphere
A virtual image is formed in a lens when
the extension of the refracted rays meet on the side of the object
Chamber of heart responsible for pumping oxygenated blood into the body
Left ventricle