Senior Proficiency Exam

DNA Replication--

The process where DNA makes a copy of itself before Mitosis occurs.

When investigating crime scenes, investigators use Hair and Skin Cells to match DNA.

The respiratory system is used to exchange gases with the atmosphere

If the lungs fill with fluid (pneumonia), there will be less oxygen into the blood.

Covalent bonds share electrons

If a woman has a mass of 50kg and a weight of 650 newton’s on the moon, on Earth, her mass will stay the same, but her weight will change (or become greater). *Mass never changes no matter where you are!

The cause of reduced water in Nevada would be a reduction in the snow pack in the mountains.

How are a panda and a raccoon related?

Both have hair, produce milk, give birth to live young- characteristics of mammals!

Ozone or Atmosphere depletion leads to an increase in skin cancer rates.

Seafloor spreading means that the plates are moving away from each other.

What is the best way to measure the density of an object?

Graduated cylinder and balance. Density = mass / volume

Extinction of an animal causes a decrease in genetic variation.

When a spoon is placed in boiling water, the kinetic energy (Heat) from the water, causes the molecules in the spoon to move faster.

The most recent fossils are found in the youngest layers of soil.

When going down a ramp, most potential energy is at the top, most kinetic energy is at the bottom. Some energy can be lost as heat (thermal energy) or friction.

In the water cycle, water evaporates from bodies of water, is released into the atmosphere from plants by transpiration, condenses into clouds, falls back to Earth as precipitation. Runoff and infiltration return water back to the bodies of water and plants.

With magnetized objects, the more charges there are and the closer they are together, the more attraction they will have.

See example on board

How do we know that a great white shark and a Megladon are related?

Comparison of skeletal structure

Hubble’s Law

States that the universe is expanding and moving away from us.

A man is working in the mining industry. Some rocks were crushed and turned into dust. What body system is most affected by this?

The Respiratory (black lung disease)

Artificial selection for breeding a faster, stronger horse--

Choose a fast horse and a strong horse and breed them together.

What is the best way to determine how two people are most closely related?

DNA

The two most abundant Greenhouse gases are

Carbon dioxide and Water vapor

Images from a space telescope are the best to use because they are not distorted

When looking at a phylogenic tree, remember that then closer related species come off of common branches

See example on board

The molecule produced during photosynthesis is

glucose

The prevailing winds, convectional currents and weather patters in the U.S. blow from

West to east

If you put a magnet to a compass, what will the needle do?

Follow the path of the electrons

Rock dropped in water – What would be the shape of the waves?

Doppler Effect

See example on the board

What is the best way to separate a mixture of silver and gold?

Melt it

What is the shape of DNA?

Double helix

Why doesn’t the salt evaporate, but the water does?

The water has a lower evaporation point than the salt, so the water evaporates first- leaving the salt behind.

Levels of Density

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What force stops a moving object?

Friction

Friction is the force that acts upon an object moving across the floor.

The Green House Effect:

Increased temperatures, increased levels of CO2 production of Acid Rain. Caused by the burning of fossil fuels.

A decrease in the Green House Effect will make the Earth’s temperature to become cooler.

A & G have greatest potential energy. D = greatest kinetic energy

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