Ecology and Organisms Review

Plants use carbon dioxide to build organic molecules during the process of

Refer to the illustration. Level A is composed of

Refer to the illustration above. According to the graph,

Ozone in the atmosphere

CFCs are a problem because they

One difference between human and bacterial cells is that bacterial cells

Which of the following is a decomposer?

Looking at the diagram, because the barnacles use the same resources, they are

We know viruses are not alive because they

The hognose snake that flips onto its back and pretends to be dead is displaying

Bacteria often have small extra loops of DNA called

Behavior in which animals locate, obtain, and consume food is called

When the abandoned fields grew back into forests, what does this best describe?

Until the US restricted DDT use in 1972, 

Antibiotic resistance

The chromosomes of bacteria

The table represents three types of

The study of viruses is part of biology  because viruses

Pollutants produced by the burning of coal include

The water cycle continuously moves water between the atmosphere, land, and

Looking at the illustration, the relationship in diagram 2 is

Which of the following is not a direct consequence of air pollution?

A species that is critical to an ecosystem

Biologists now know that viruses 

Antibiotics are ineffective against viral infections because

A bacterial disease caused by bacteria that use human tissue for nutrients is

Which of the following factors is not helpful in defining a biome?

Refer to the illustration. What was the world population in 1776?

Looking at the picture, the photosynthetic algae are

After the removal of the sea stars,

plentiful resources : increasing growth rate ::

Which two key factors determine the climate of a region?

Water trapped beneath the soil

Structures found in bacterial cells but not in eukaryotic cells are

Which of these activities causes the greatest loss of biodiversity?

The function of a bacteriophage's tail and tail fibers is to inject

A typical virus consists of a

Which of the following is common to the carbon, nitrogen, and water cycle?

Bacterial cells have

In biomes where precipitation is low, most organisms have adaptations to

Which of the following is not an abiotic factor that affects population size?

The kind of species that live in certain areas are determined largely by

When two species compete, the niche that each species ultimately occupies is its

The waxy protective covering of a land plant is called a

Looking at the picture, which shows how energy moves through an ecosystem?

Refer to the illustration. According to the graph, the human population

Crop rotation helps to conserve fertile soil by

Some land plants developed an internal system of interconnected tubes and vessels called

Nitrogen-fixing bacteria

It is important to differentiate between gram⁺ and gram^- because

Looking at diagram C, the shallow water is the barnacle's

Looking at the picture, leopard seals are

A group of organisms of different species living together in a particular place is called a

Vaccines have contributed to human population growth by

Which of the following is not descriptive of coal, oil, and natural gas?

What occurs when members of the same species require the same food and space?

Refer to the illustration. Which structure represents proteins?

How is the lytic cycle different from the lysogenic cycle?

A provirus is part of a virus's

The world human population is presently