Biology 2018 Mid-Term Review

A model is useful if it

The space surrounding the nucleus of an atom contains

How many bonds can carbon form with other atoms?

In 2000, the human population was about

Diffusion is the net movement of molecules from

The reaction that adds a monomer to a chain is called a

An experiment that tests the effect of a single variable is called a

Which biome has the least amount of precipitation?

Thin, flexible barrier around a cell.

The main function of the cell wall is to

A theory

A disease resulting in deaths of one-third of a dense population of bats would likely be a

Which statement is true?

What is the term for each step in the transfer of energy and matter within a food web?

Which of the following makes up a molecule of water?

What is the term for a group of organisms of the same species living in a particular area?

Organisms that obtain nutrients by breaking down wastes and dead organisms are called

Matter can be recycled through the biosphere because

One of the greatest threats today to biological diversity is

An example of a place with a microclimate is

Which of the following is a function of the plasma membrane?

Which of the following is a density-independent factor?

The series of changes that occurs in a community over time is called

A bird kills and eats an insect. Which ecological terms describe the bird?

Each of the following is an abiotic factor in the environment EXCEPT

There are 150 cacti plants per sq km in desert. What characteristic does this information show?

Measurements of a plant’s growth over a two-week period represent

A substance that accelerates the rate of a chemical reaction is called a(an)

Which organelle breaks down macromolecules into particles the cell can use?

Biology is the scientific study of

A monosaccharide is a

What is the term for the land, water, and air on Earth and all their organisms?

Which of the following contain a nucleus?

Which organizational level includes all of the other levels?

symbiotic relationship between flower and the insect that feeds on its nectar

What is one difference between primary and secondary succession?

Which would be least likely to be affected by a density-dependent factor?

Which of the following organic compounds is the main fuel supply for cellular work?

A snake that eats a frog that has eaten an insect that fed on a plant is a

Which of the following is a function of the nucleus?

A condition in the environment that can restrict a population’s growth is a

An interaction in which one organism captures and feeds on another organism is called

Cholesterol is a

Substance formed by the chemical combination of two or more elements

What is the term for a localized group of organisms belonging to the same species?

Amino acid is to protein as

If an atom contains 11 protons and 12 neutrons, its atomic number is

Which animal would be found in the biome with cold winters, warm summers, and deciduous trees?

Light microscopes can magnify objects

An organism’s niche is

The passive transport of water across a selectively permeable membrane is called

What is the main reason that Earth has three main climate zones?

A group of cells that together perform a similar function is called a(an)

Polysaccharides include

Prokaryotic cells lack

Each distinct form of life or type of organism is called a

A controlled experiment allows the scientist to isolate and test

The most common elements in most living things are

A logical conclusion based on observations is called a(an

Many people value biodiversity because it

A hypothesis

Unlike the members of domains Bacteria and Archaea, the members of domain Eukarya

In science, a hypothesis is useful only if

A population is defined by its

When hydrogen and oxygen combine and form water, water is

Which of the following is NOT a principle of the cell theory?

A solution is a

The biosphere is

Which means of particle transport requires input of energy from the cell?

Which organelle would you expect to find in plant cells but not animal cells?

Identify the reactant(s) in the chemical reaction, CO₂ + H₂O -> H₂CO₃

Carbon cycles through the biosphere in all of the following processes EXCEPT

The idea that “all living things are made of cells” is

As resources in a population become less available, population growth

Water molecules are polar, with the

The algae at the beginning of the food chain

An increase in Earth’s temperature from the carbon dioxide and other gases in the atmosphere

The work of scientists generally begins with

Levels of organization in a multicellular organism from simplest level to most complex

The membrane contains channels that move materials. What are these channels made of?

Which level of ecological study includes all of the other levels?

When the concentration of molecules on both sides of a membrane is the same, the molecules will

What is the term for all parts of Earth inhabited by living things?

The repeated movement of water between Earth’s surface and the atmosphere is called

An organ system is a group of organs that

A squirrel and an oak tree are both examples of individual

The major cause of ozone depletion

Which type of pyramid shows the amount of living tissue at each trophic level in an ecosystem?

Life’s basic unit of structure and function is the

Which biome is characterized by very low temperatures, high winds, and permafrost?

Which organelle releases energy from sugars and other molecules?

A covalent bond is formed as the result of

A substance with a pH of 6 is called

A biome is identified by its

Enzymes affect the reactions in living cells by lowering the

A carbohydrate made up of two sugar units is a

When enough experimental data support a hypothesis, the hypothesis becomes a(an)

The three particles that make up an atom are

At different latitudes the sun’s energy strikes Earth

The differences between amino acids are in the