Semester 1 Final Review Fall 2015

The sulfur and nitrogen compounds in smog combine with water to form

Model complex feeding interactions among organisms in a community from producers to decomposers

A symbiotic relationship in which one organism is harmed and the other benefits is

What should a scientist do to make it easier for another scientist to replicate their work?

About how much energy is passed on from one trophic level to the next?

How does a theory compare to a hypothesis?

Dr. B proposed a hypothesis about a new virus affecting dogs. Other researchers would likely

Why did oceans not exist on Earth nearly 4 billion years ago?

A symbiotic relationship in which both species benefit is

To compare the relative ages of rocks, scientists might use a widespread fossil type called 

Introduced species can threaten biodiversity because they can

The lowest level of environmental complexity that includes living and nonliving factors is the

Which of the following is true about nonrenewable resources?

An ______ is the basic unit of matter.

All organisms in the kingdoms Protista, Plantae, Fungi, and Animalia are

Fossilized evidence of Earth’s first forms of life would consist of

Organisms share similar embryos, homologous structures, & vestigial structures because of

Darwin called the ability of an organism to survive and reproduce in its specific environment

Scientists assign every organism a universally accepted name according to the system known as

The length of time required for half of the radioactive atoms in a sample to decay is its

An organism responsible for making its own food is known as a 

Gasses which trap heat in Earth’s atmosphere contribute to the

Which will reduce competition within a species’ population?

In a controlled experiment, a scientist isolates and test

The genes carried by all members of a particular population make up the population’s

Earth’s early atmosphere was primarily composed of

Nitrogen fixation and denitrification are carried out primarily by

The energy for most of the world’s food chains ultimately comes from

The fossil record 

The first photosynthetic organisms

The tendency for warm air to rise and cool air to sink results in

According to the pH scale which substance is the most acidic?