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Question:

The flat, colored, ring-shaped membrane of the eye is called:

A iris
explanation

The iris is a flat, colored, ring-shaped membrane that sits behind the cornea. It has an adjustable circular opening in the center called the pupil.

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Related Questions

The Big Bang theory is a model used to explain the _______.

Origin of the universe

The Big Bang theory is the most popular and widely accepted explanation for how the universe began. According to the Big Bang model, all of the current and past matter in the universe came into existence at the same time (about 13.8 billion years ago). At this time, all matter was compacted into a very small ball with infinite density called a singularity. Suddenly, the singularity expanded, and the universe as we know it began.

If two forces act on an object in opposite directions, the force that results is _____.

the difference between the two forces

When the two forces are in opposite directions, the resulting force is the difference between the two forces.

Which of Newton's laws states that:
An object at rest will stay at rest unless an external force acts upon it.
An object in motion won't change its velocity unless an external force acts upon it.

Newton's First Law of Motion

Newton's First Law is often called the law of inertia.
Newton's Second Law: Force = Mass × Acceleration.
Newton's Third Law: For every action, there is an equal and opposite reaction.

Humans can breed plants and animals to have useful traits. By selecting which animals are allowed to reproduce, humans can influence an organism’s genotype. Which name did Darwin use to describe this process?

Artificial selection

Darwin used the term artificial selection to distinguish this process from natural selection. Natural selection is the process by which living things with beneficial traits tend to survive and reproduce more than individuals with other less successful traits. It is also known as survival of the fittest. Artificial selection, on the other hand, is the reproduction of organisms with beneficial traits resulting from the influence of humans.

A pot sitting on a hot burner is an example of

Conduction

Conduction is where heat is directly transmitted from a hot object to a cooler object.

An Anemometer measures what

Wind Speed

An anemometer measures wind speed.

The sun’s energy reaches the Earth’s surface primarily in the form of:

Visible light radiation

The sun’s energy reaches earth in the form of visible light. Some ultraviolet radiation does reach the Earth’s surface, but much of it is blocked by the ozone layer and particles in the atmosphere.

Force can be represented by a vector. A vector represents

Magnitude and Direction

A force represented by a vector consists of magnitude and direction.

All magnets have two poles which can be used to predict the direction of their magnetic waves. These two poles are the ____.

South and North

Magnets have a north pole and a south pole. The magnetic field lines travel from the North Pole to the South Pole.

These subatomic particles have a positive electric charge.

Protons

The basic unit of matter is called the Atom. Atoms consist of a dense nucleus surrounded by a cloud of negatively charged electrons. The nucleus contains a mixture of protons which are positively charged, and neutrons, which are electrically neutral.

The formal binomial nomenclature (or scientific name) of a living organism consists of which two parts?

Genus and Species

An organism's scientific name is comprised of its Genus and Species.