How does photosynthesis benefit heterotrophs?

During what stage of the cell cycle does replication occur?

The regular cycle of growth and division that cells undergo is called

Under which of the following conditions is lactic-acid fermentation most likely to occur?

What is copied during replication?

The stage of respiration that releases most of the energy in glucose occurs in the

How are photosynthesis and respiration related?

What are chromatids?

The stage of the cell cycle that follows mitosis is called

What is a mutation?

What does the notation TT mean to geneticists?

What does a Punnett square show?

A purebred chicken with white feathers is crossed with a purebred chicken that has black feathers. Each of their offspring has both black and white feathers. Why does this happen?

Which term refers to physical characteristics that are studied in genetics?

An organism’s genotype is its

Scientists call an organism that has two different alleles for a trait a

What does the notation Tt mean to geneticists?

What is probability?

If a homozygous black guinea pig (BB) is crossed with a homozygous white guinea pig (bb), what is the probability that an offspring will have black fur?

An organism’s physical appearance is its

When sex cells combine to produce offspring, each sex cell will contribute

The different forms of a gene are called

An organism that has two identical alleles for a trait is

A heterozygous organism has

What is the function of a cell wall?

Which organelle is the control center of a cell?

A substance that cannot be broken down into simpler elements is a(n)

Which term refers to the diffusion of water molecules through a selectively permeable membrane?

The invention of the microscope made it possible for people to discover

What does the term resolution refer to?

What is the function of a cell membrane?

Which term refers to the movement of molecules from an area of higher concentration to an area of lower concentration?

Which term refers to the movement of materials through a cell membrane without using the cell’s energy?

Which term refers to the movement of materials through a cell membrane when the cell’s energy is required?

Which organelles store food and other materials needed by the cell?

Scientists call an organism that has two different alleles for a trait

Plants make their own food using energy that comes from the ____________________.

Almost all living things depend on the process of ____________________ to supply them with the energy they need.

The final stage of the cell cycle, during which the cytoplasm divides, is called ____________________.

The main difference between respiration and fermentation is that respiration uses ____________________ to obtain energy from food.

A change in DNA is called a(n) ____________________.

If a(n) ____________________ allele is present, its trait will appear in the organism.

The process in which a parent cell divides twice to produce sex cells is called ____________________.

A chart used to predict results of genetic crosses is known as a(n) ____________________.

A microscope allowed Hooke to see “tiny rectangular rooms,” which he called ____________________.

An organism that has two dominant or two recessive alleles is said to be ____________________ for that trait.

Cells are the basic units of structure and ____________________ in living things.

The diffusion of ____________________ molecules through a selectively permeable membrane is called osmosis.

Since carbon cannot be broken down into simpler substances, it is an example of a(n) ____________________.

When two or more elements combine chemically, they form a(n) ____________________.